/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 14:05:30,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 14:05:30,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 14:05:30,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 14:05:30,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 14:05:30,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 14:05:30,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 14:05:30,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 14:05:30,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 14:05:30,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 14:05:30,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 14:05:30,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 14:05:30,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 14:05:30,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 14:05:30,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 14:05:30,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 14:05:30,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 14:05:30,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 14:05:30,202 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 14:05:30,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 14:05:30,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 14:05:30,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 14:05:30,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 14:05:30,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 14:05:30,205 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 14:05:30,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 14:05:30,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 14:05:30,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 14:05:30,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 14:05:30,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 14:05:30,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 14:05:30,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 14:05:30,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 14:05:30,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 14:05:30,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 14:05:30,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 14:05:30,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 14:05:30,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 14:05:30,217 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 14:05:30,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 14:05:30,218 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 14:05:30,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 14:05:30,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 14:05:30,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 14:05:30,499 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 14:05:30,500 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 14:05:30,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl [2021-06-17 14:05:30,500 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl' [2021-06-17 14:05:30,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 14:05:30,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 14:05:30,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 14:05:30,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 14:05:30,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 14:05:30,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 14:05:30,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 14:05:30,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 14:05:30,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 14:05:30,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... [2021-06-17 14:05:30,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 14:05:30,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 14:05:30,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 14:05:30,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 14:05:30,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 14:05:30,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 14:05:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 14:05:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 14:05:30,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 14:05:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 14:05:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 14:05:30,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 14:05:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 14:05:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 14:05:30,632 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 14:05:30,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 14:05:30,818 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 14:05:30,819 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:05:30 BoogieIcfgContainer [2021-06-17 14:05:30,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 14:05:30,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 14:05:30,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 14:05:30,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 14:05:30,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:05:30" (1/2) ... [2021-06-17 14:05:30,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafb932 and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 02:05:30, skipping insertion in model container [2021-06-17 14:05:30,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:05:30" (2/2) ... [2021-06-17 14:05:30,824 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2021-06-17 14:05:30,845 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 14:05:30,845 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 14:05:30,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 14:05:30,846 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 14:05:30,874 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-17 14:05:30,894 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 14:05:30,942 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 14:05:30,942 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 14:05:30,942 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 14:05:30,942 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 14:05:30,942 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 14:05:30,942 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 14:05:30,942 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 14:05:30,942 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 14:05:31,003 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:31,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:31,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1894955347, now seen corresponding path program 1 times [2021-06-17 14:05:31,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:31,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308505129] [2021-06-17 14:05:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:05:31,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:31,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308505129] [2021-06-17 14:05:31,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308505129] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 14:05:31,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 14:05:31,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 14:05:31,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900472012] [2021-06-17 14:05:31,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 14:05:31,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:31,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 14:05:31,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-17 14:05:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:31,194 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:31,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:31,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 14:05:31,282 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1399266475, now seen corresponding path program 1 times [2021-06-17 14:05:31,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:31,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859592326] [2021-06-17 14:05:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:31,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:05:31,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:31,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859592326] [2021-06-17 14:05:31,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859592326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 14:05:31,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 14:05:31,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 14:05:31,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928707703] [2021-06-17 14:05:31,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 14:05:31,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:31,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 14:05:31,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 14:05:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:31,325 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:31,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:31,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 14:05:31,373 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:31,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:31,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1045442669, now seen corresponding path program 1 times [2021-06-17 14:05:31,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:31,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144006270] [2021-06-17 14:05:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:31,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:31,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144006270] [2021-06-17 14:05:31,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144006270] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:31,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365764927] [2021-06-17 14:05:31,487 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 [2021-06-17 14:05:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:31,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 14:05:31,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:31,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365764927] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:31,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:31,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 14:05:31,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971973614] [2021-06-17 14:05:31,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-17 14:05:31,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:31,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-17 14:05:31,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-06-17 14:05:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:31,862 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:31,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:31,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:31,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:31,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:32,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:05:32,167 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash 304720813, now seen corresponding path program 2 times [2021-06-17 14:05:32,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:32,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91893888] [2021-06-17 14:05:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:32,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:32,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91893888] [2021-06-17 14:05:32,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91893888] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:32,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784591258] [2021-06-17 14:05:32,330 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 [2021-06-17 14:05:32,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:05:32,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:05:32,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-17 14:05:32,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:32,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784591258] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:32,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:32,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-06-17 14:05:32,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811822742] [2021-06-17 14:05:32,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-17 14:05:32,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:32,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-17 14:05:32,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2021-06-17 14:05:32,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:32,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:32,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:32,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:32,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:32,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:32,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:34,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:05:34,010 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:34,010 INFO L82 PathProgramCache]: Analyzing trace with hash -70577617, now seen corresponding path program 3 times [2021-06-17 14:05:34,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:34,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281654557] [2021-06-17 14:05:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:34,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:34,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281654557] [2021-06-17 14:05:34,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281654557] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:34,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647986968] [2021-06-17 14:05:34,262 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 [2021-06-17 14:05:34,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 14:05:34,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:05:34,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-17 14:05:34,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:34,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647986968] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:34,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:34,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-06-17 14:05:34,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117053995] [2021-06-17 14:05:34,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-17 14:05:34,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:34,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-17 14:05:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-17 14:05:34,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:34,771 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:34,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 27 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:34,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:34,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:34,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:34,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:34,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:37,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:37,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:05:37,905 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:37,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:37,905 INFO L82 PathProgramCache]: Analyzing trace with hash -268837777, now seen corresponding path program 4 times [2021-06-17 14:05:37,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:37,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741496676] [2021-06-17 14:05:37,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:05:38,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:38,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741496676] [2021-06-17 14:05:38,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741496676] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:38,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265778536] [2021-06-17 14:05:38,187 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 [2021-06-17 14:05:38,216 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 14:05:38,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:05:38,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-17 14:05:38,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:05:38,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265778536] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:38,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:38,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-06-17 14:05:38,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664385549] [2021-06-17 14:05:38,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-17 14:05:38,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:38,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-17 14:05:38,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2021-06-17 14:05:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:38,826 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:38,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 29 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:38,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:38,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:38,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:38,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:38,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:38,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:05:40,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-17 14:05:40,933 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:40,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1677122637, now seen corresponding path program 5 times [2021-06-17 14:05:40,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:40,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909326986] [2021-06-17 14:05:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:41,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:41,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909326986] [2021-06-17 14:05:41,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909326986] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:41,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059122689] [2021-06-17 14:05:41,588 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 [2021-06-17 14:05:41,625 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-17 14:05:41,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:05:41,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-17 14:05:41,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:05:42,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059122689] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:42,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:42,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2021-06-17 14:05:42,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002978137] [2021-06-17 14:05:42,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-17 14:05:42,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:42,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-17 14:05:42,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1520, Unknown=0, NotChecked=0, Total=1640 [2021-06-17 14:05:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:42,686 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:42,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.829268292682927) internal successors, (75), 40 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:05:42,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:44,206 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 34 [2021-06-17 14:05:44,374 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2021-06-17 14:05:48,303 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-06-17 14:05:48,524 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2021-06-17 14:05:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:05:48,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:05:49,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:05:49,089 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:49,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1562714107, now seen corresponding path program 6 times [2021-06-17 14:05:49,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:49,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147311616] [2021-06-17 14:05:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 1 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:49,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:49,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147311616] [2021-06-17 14:05:49,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147311616] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:49,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647822810] [2021-06-17 14:05:49,987 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 [2021-06-17 14:05:50,038 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-06-17 14:05:50,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:05:50,040 WARN L261 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 77 conjunts are in the unsatisfiable core [2021-06-17 14:05:50,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-17 14:05:51,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647822810] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:51,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:51,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 25] total 48 [2021-06-17 14:05:51,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224057420] [2021-06-17 14:05:51,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-06-17 14:05:51,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:51,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-06-17 14:05:51,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=2114, Unknown=0, NotChecked=0, Total=2352 [2021-06-17 14:05:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:51,602 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:51,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 48 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) [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:05:51,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:54,150 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2021-06-17 14:05:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:05:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:05:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:05:55,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:05:55,493 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:05:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:05:55,493 INFO L82 PathProgramCache]: Analyzing trace with hash -692050885, now seen corresponding path program 7 times [2021-06-17 14:05:55,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:05:55,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813892358] [2021-06-17 14:05:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:05:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:05:56,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:05:56,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813892358] [2021-06-17 14:05:56,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813892358] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:56,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775411336] [2021-06-17 14:05:56,552 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 [2021-06-17 14:05:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:05:56,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-17 14:05:56,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:05:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-06-17 14:05:57,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775411336] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:05:57,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:05:57,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 18] total 47 [2021-06-17 14:05:57,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605350195] [2021-06-17 14:05:57,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-17 14:05:57,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:05:57,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-17 14:05:57,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2016, Unknown=0, NotChecked=0, Total=2162 [2021-06-17 14:05:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:05:57,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:05:57,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 47 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:05:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:00,985 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 29 [2021-06-17 14:06:02,676 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-06-17 14:06:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:06:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:06:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:06:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:06:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:06:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:06:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:06:02,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable119 [2021-06-17 14:06:02,925 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:06:02,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:06:02,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1001749373, now seen corresponding path program 8 times [2021-06-17 14:06:02,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:06:02,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022919239] [2021-06-17 14:06:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:06:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:06:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 2 proven. 364 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 14:06:04,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:06:04,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022919239] [2021-06-17 14:06:04,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022919239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:06:04,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80173805] [2021-06-17 14:06:04,731 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 [2021-06-17 14:06:04,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:06:04,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:06:04,799 WARN L261 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 109 conjunts are in the unsatisfiable core [2021-06-17 14:06:04,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:06:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 348 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-06-17 14:06:07,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80173805] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:06:07,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:06:07,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 27] total 54 [2021-06-17 14:06:07,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103626935] [2021-06-17 14:06:07,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-06-17 14:06:07,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:06:07,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-06-17 14:06:07,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=2770, Unknown=0, NotChecked=0, Total=2970 [2021-06-17 14:06:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:07,200 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:06:07,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 1.9272727272727272) internal successors, (106), 54 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:06:07,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:06:07,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:09,569 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-06-17 14:06:10,077 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2021-06-17 14:06:11,192 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 38 [2021-06-17 14:06:12,399 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2021-06-17 14:06:13,640 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 38 [2021-06-17 14:06:14,878 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 40 [2021-06-17 14:06:17,233 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 54 [2021-06-17 14:06:17,392 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2021-06-17 14:06:17,697 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 54 [2021-06-17 14:06:17,987 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 55 [2021-06-17 14:06:18,192 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 30 [2021-06-17 14:06:19,093 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2021-06-17 14:06:19,714 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 36 [2021-06-17 14:06:20,051 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2021-06-17 14:06:20,353 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2021-06-17 14:06:20,524 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2021-06-17 14:06:20,693 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2021-06-17 14:06:20,876 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2021-06-17 14:06:21,082 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2021-06-17 14:06:21,280 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 44 [2021-06-17 14:06:21,457 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2021-06-17 14:06:21,679 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 45 [2021-06-17 14:06:21,903 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2021-06-17 14:06:22,130 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2021-06-17 14:06:22,303 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-06-17 14:06:22,546 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-06-17 14:06:22,783 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2021-06-17 14:06:23,007 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2021-06-17 14:06:23,244 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2021-06-17 14:06:23,502 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2021-06-17 14:06:23,751 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2021-06-17 14:06:24,014 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-06-17 14:06:24,250 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-06-17 14:06:25,744 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-06-17 14:06:27,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:06:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:06:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-17 14:06:27,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable136 [2021-06-17 14:06:27,431 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:06:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:06:27,432 INFO L82 PathProgramCache]: Analyzing trace with hash -348827889, now seen corresponding path program 9 times [2021-06-17 14:06:27,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:06:27,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025666757] [2021-06-17 14:06:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:06:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:06:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 0 proven. 1135 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-06-17 14:06:30,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:06:30,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025666757] [2021-06-17 14:06:30,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025666757] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:06:30,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370330641] [2021-06-17 14:06:30,708 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 [2021-06-17 14:06:30,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-06-17 14:06:30,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:06:30,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 96 conjunts are in the unsatisfiable core [2021-06-17 14:06:30,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:06:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 0 proven. 1090 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-06-17 14:06:33,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370330641] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:06:33,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:06:33,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 32] total 78 [2021-06-17 14:06:33,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831044066] [2021-06-17 14:06:33,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-06-17 14:06:33,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:06:33,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-06-17 14:06:33,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=5796, Unknown=0, NotChecked=0, Total=6006 [2021-06-17 14:06:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:33,644 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:06:33,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 2.1153846153846154) internal successors, (165), 78 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-17 14:06:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:06:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-17 14:06:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-17 14:06:46,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:06:46,243 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:06:46,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:06:46,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1950001487, now seen corresponding path program 10 times [2021-06-17 14:06:46,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:06:46,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206169360] [2021-06-17 14:06:46,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:06:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:06:47,125 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2021-06-17 14:06:47,940 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2021-06-17 14:06:48,119 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2021-06-17 14:06:48,295 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2021-06-17 14:06:48,457 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 40 [2021-06-17 14:06:48,612 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 39 [2021-06-17 14:06:49,165 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2021-06-17 14:06:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 1249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:06:52,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:06:52,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206169360] [2021-06-17 14:06:52,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206169360] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:06:52,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757108462] [2021-06-17 14:06:52,856 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 [2021-06-17 14:06:52,966 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 14:06:52,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:06:52,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 100 conjunts are in the unsatisfiable core [2021-06-17 14:06:52,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:06:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 1182 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-06-17 14:06:57,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757108462] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:06:57,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:06:57,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 34] total 90 [2021-06-17 14:06:57,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188812353] [2021-06-17 14:06:57,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-06-17 14:06:57,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:06:57,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-06-17 14:06:57,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=7782, Unknown=0, NotChecked=0, Total=8010 [2021-06-17 14:06:57,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:57,237 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:06:57,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 2.0444444444444443) internal successors, (184), 90 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-06-17 14:06:57,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:06:57,976 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2021-06-17 14:06:58,557 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 30 [2021-06-17 14:07:00,075 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 29 [2021-06-17 14:07:01,386 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 31 [2021-06-17 14:07:01,923 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2021-06-17 14:07:02,688 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 28 [2021-06-17 14:07:04,233 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 21 [2021-06-17 14:07:05,715 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 28 [2021-06-17 14:07:07,040 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 29 [2021-06-17 14:07:08,477 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 24 [2021-06-17 14:07:09,049 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2021-06-17 14:07:09,862 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 29 [2021-06-17 14:07:10,304 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2021-06-17 14:07:11,334 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 32 [2021-06-17 14:07:12,865 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 36 [2021-06-17 14:07:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-17 14:07:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-06-17 14:07:17,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-06-17 14:07:17,961 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:07:17,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:07:17,962 INFO L82 PathProgramCache]: Analyzing trace with hash -360127601, now seen corresponding path program 11 times [2021-06-17 14:07:17,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:07:17,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74877668] [2021-06-17 14:07:17,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:07:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:07:19,415 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2021-06-17 14:07:19,561 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2021-06-17 14:07:19,735 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2021-06-17 14:07:21,743 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-06-17 14:07:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 0 proven. 1345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:07:24,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:07:24,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74877668] [2021-06-17 14:07:24,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74877668] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:07:24,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814809364] [2021-06-17 14:07:24,600 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 [2021-06-17 14:07:24,703 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-06-17 14:07:24,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:07:24,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 104 conjunts are in the unsatisfiable core [2021-06-17 14:07:24,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:07:47,574 WARN L205 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 7089 DAG size of output: 6813