/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 06:39:13,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 06:39:13,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 06:39:13,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 06:39:13,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf [2021-07-10 06:39:13,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 06:39:13,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 06:39:13,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 06:39:13,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 06:39:13,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 06:39:13,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 06:39:13,943 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 06:39:13,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 06:39:13,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 06:39:13,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 06:39:13,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 06:39:13,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 06:39:13,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 06:39:13,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 06:39:13,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 06:39:13,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 06:39:13,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 06:39:13,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 06:39:13,961 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-10 06:39:13,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 06:39:14,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 06:39:14,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 06:39:14,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 06:39:14,328 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 06:39:14,329 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 06:39:14,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2021-07-10 06:39:14,330 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2021-07-10 06:39:14,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 06:39:14,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 06:39:14,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 06:39:14,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 06:39:14,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 06:39:14,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 06:39:14,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 06:39:14,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 06:39:14,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 06:39:14,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... [2021-07-10 06:39:14,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 06:39:14,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 06:39:14,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 06:39:14,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 06:39:14,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 06:39:14,480 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 06:39:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 06:39:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 06:39:14,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 06:39:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 06:39:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 06:39:14,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 06:39:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 06:39:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 06:39:14,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 06:39:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 06:39:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 06:39:14,482 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 06:39:14,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 06:39:14,751 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 06:39:14,753 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:39:14 BoogieIcfgContainer [2021-07-10 06:39:14,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 06:39:14,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 06:39:14,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 06:39:14,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 06:39:14,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 06:39:14" (1/2) ... [2021-07-10 06:39:14,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77423048 and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:39:14, skipping insertion in model container [2021-07-10 06:39:14,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:39:14" (2/2) ... [2021-07-10 06:39:14,759 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2021-07-10 06:39:14,763 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 06:39:14,763 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 06:39:14,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 06:39:14,764 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 06:39:14,856 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 06:39:14,878 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 06:39:14,949 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 06:39:14,949 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 06:39:14,949 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 06:39:14,949 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 06:39:14,949 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 06:39:14,949 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 06:39:14,949 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 06:39:14,949 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 06:39:15,101 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:15,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:15,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1294754641, now seen corresponding path program 1 times [2021-07-10 06:39:15,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:15,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832480509] [2021-07-10 06:39:15,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:15,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:15,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832480509] [2021-07-10 06:39:15,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832480509] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 06:39:15,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 06:39:15,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 06:39:15,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48555528] [2021-07-10 06:39:15,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 06:39:15,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:15,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 06:39:15,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 06:39:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:15,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:15,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:15,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:15,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 06:39:15,281 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:15,281 INFO L82 PathProgramCache]: Analyzing trace with hash -573812561, now seen corresponding path program 1 times [2021-07-10 06:39:15,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:15,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424961672] [2021-07-10 06:39:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 06:39:15,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:15,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424961672] [2021-07-10 06:39:15,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424961672] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 06:39:15,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 06:39:15,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-10 06:39:15,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510877878] [2021-07-10 06:39:15,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 06:39:15,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:15,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 06:39:15,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 06:39:15,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:15,326 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:15,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:15,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:15,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:15,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:15,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 06:39:15,362 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:15,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:15,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1553043955, now seen corresponding path program 1 times [2021-07-10 06:39:15,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:15,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666178496] [2021-07-10 06:39:15,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:15,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:15,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666178496] [2021-07-10 06:39:15,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666178496] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:15,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498557296] [2021-07-10 06:39:15,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:15,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 06:39:15,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:16,016 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:39:16,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-07-10 06:39:16,028 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-10 06:39:16,035 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:16,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:39:16,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-07-10 06:39:16,045 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-10 06:39:16,052 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:16,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-07-10 06:39:16,058 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 06:39:16,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:16,068 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-10 06:39:16,068 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-10 06:39:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:16,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498557296] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:16,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:39:16,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 06:39:16,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076943137] [2021-07-10 06:39:16,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 06:39:16,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:16,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 06:39:16,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-10 06:39:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:16,127 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:16,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:16,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:16,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:16,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:16,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:16,513 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:16,513 INFO L82 PathProgramCache]: Analyzing trace with hash -579044245, now seen corresponding path program 2 times [2021-07-10 06:39:16,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:16,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121043821] [2021-07-10 06:39:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:16,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:16,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121043821] [2021-07-10 06:39:16,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121043821] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:16,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029705840] [2021-07-10 06:39:16,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:16,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 06:39:16,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:39:16,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 06:39:16,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:16,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029705840] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:16,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:39:16,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-10 06:39:16,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197102901] [2021-07-10 06:39:16,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 06:39:16,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:16,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 06:39:16,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-10 06:39:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:16,812 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:16,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:16,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:16,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:16,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:16,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:17,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:17,217 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:17,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:17,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1258232401, now seen corresponding path program 1 times [2021-07-10 06:39:17,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:17,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237028962] [2021-07-10 06:39:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 06:39:17,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:17,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237028962] [2021-07-10 06:39:17,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237028962] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:17,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078375971] [2021-07-10 06:39:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:17,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 06:39:17,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 06:39:17,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078375971] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:17,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:39:17,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 06:39:17,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347428737] [2021-07-10 06:39:17,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 06:39:17,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:17,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 06:39:17,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-10 06:39:17,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:17,492 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:17,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:17,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:17,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:17,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:17,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:17,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:17,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:17,845 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:17,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1336527475, now seen corresponding path program 2 times [2021-07-10 06:39:17,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:17,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103186900] [2021-07-10 06:39:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:18,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:18,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103186900] [2021-07-10 06:39:18,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103186900] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:18,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614909920] [2021-07-10 06:39:18,227 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:18,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 06:39:18,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:39:18,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-10 06:39:18,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:18,850 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:18,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 73 [2021-07-10 06:39:19,118 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-10 06:39:19,145 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:19,171 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:19,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 61 [2021-07-10 06:39:19,396 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-10 06:39:19,436 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:19,476 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:19,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 85 [2021-07-10 06:39:19,702 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-10 06:39:20,122 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2021-07-10 06:39:20,123 INFO L628 ElimStorePlain]: treesize reduction 322, result has 68.1 percent of original size [2021-07-10 06:39:20,430 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2021-07-10 06:39:20,824 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-10 06:39:20,824 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:77, output treesize:228 [2021-07-10 06:39:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:20,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614909920] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:20,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:39:20,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-07-10 06:39:20,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027891301] [2021-07-10 06:39:20,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 06:39:20,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:20,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 06:39:20,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-07-10 06:39:20,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:20,929 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:20,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.0) internal successors, (50), 25 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:20,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:20,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:20,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:20,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:20,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:20,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:22,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:39:22,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 06:39:22,506 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:22,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:22,506 INFO L82 PathProgramCache]: Analyzing trace with hash 731317739, now seen corresponding path program 3 times [2021-07-10 06:39:22,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:22,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204294813] [2021-07-10 06:39:22,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:22,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:22,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204294813] [2021-07-10 06:39:22,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204294813] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:22,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998872264] [2021-07-10 06:39:22,631 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:22,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 06:39:22,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:39:22,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 06:39:22,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:22,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998872264] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:22,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:39:22,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-10 06:39:22,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056852022] [2021-07-10 06:39:22,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 06:39:22,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:22,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 06:39:22,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-10 06:39:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:22,847 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:22,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:39:22,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:39:23,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:39:23,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:23,465 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:23,465 INFO L82 PathProgramCache]: Analyzing trace with hash -138760401, now seen corresponding path program 4 times [2021-07-10 06:39:23,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:23,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474185443] [2021-07-10 06:39:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 06:39:23,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:23,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474185443] [2021-07-10 06:39:23,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474185443] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:23,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770969620] [2021-07-10 06:39:23,558 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:23,604 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 06:39:23,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:39:23,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 06:39:23,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 06:39:23,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770969620] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:23,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:39:23,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-10 06:39:23,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345844537] [2021-07-10 06:39:23,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 06:39:23,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:39:23,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 06:39:23,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-10 06:39:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:23,748 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:39:23,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:39:23,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:39:23,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:39:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:39:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:39:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:39:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:39:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:39:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:39:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:39:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 06:39:24,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-07-10 06:39:24,189 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:39:24,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:39:24,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2141798669, now seen corresponding path program 5 times [2021-07-10 06:39:24,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:39:24,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886990718] [2021-07-10 06:39:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:39:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:39:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:39:24,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:39:24,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886990718] [2021-07-10 06:39:24,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886990718] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:39:24,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385653901] [2021-07-10 06:39:24,689 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:39:24,739 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-10 06:39:24,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:39:24,741 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-10 06:39:24,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:39:34,843 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-07-10 06:39:34,997 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:39:34,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-07-10 06:39:35,006 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-10 06:39:35,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:35,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:39:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:39:35,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-07-10 06:39:35,028 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-10 06:39:35,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:35,104 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:39:35,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-07-10 06:39:35,270 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2021-07-10 06:39:35,464 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 137 [2021-07-10 06:39:35,942 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2021-07-10 06:39:36,315 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 240 [2021-07-10 06:39:37,411 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-07-10 06:39:38,448 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-07-10 06:39:39,440 WARN L205 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 295 [2021-07-10 06:39:39,802 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-10 06:39:40,285 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-07-10 06:39:40,703 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-07-10 06:39:40,904 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-10 06:39:41,039 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-10 06:39:41,925 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-10 06:39:42,299 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-10 06:39:42,671 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-10 06:39:43,240 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 136 [2021-07-10 06:39:43,461 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2021-07-10 06:39:44,516 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-07-10 06:39:45,545 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 313 DAG size of output: 293 [2021-07-10 06:39:46,548 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-07-10 06:39:47,682 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-07-10 06:39:48,772 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 286 DAG size of output: 288 [2021-07-10 06:39:49,718 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-07-10 06:39:50,436 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-07-10 06:39:50,665 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 147 [2021-07-10 06:39:51,048 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-10 06:39:51,518 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-07-10 06:39:51,847 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-07-10 06:39:51,983 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-10 06:39:52,114 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-10 06:39:52,856 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-10 06:39:53,234 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-10 06:39:53,608 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-10 06:39:54,635 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-07-10 06:39:55,652 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-07-10 06:39:56,649 WARN L205 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-07-10 06:39:57,786 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-07-10 06:39:57,789 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-10 06:40:00,044 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 290 DAG size of output: 248 [2021-07-10 06:40:00,044 INFO L628 ElimStorePlain]: treesize reduction 15036, result has 42.6 percent of original size [2021-07-10 06:40:00,455 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 249 [2021-07-10 06:40:00,762 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 236 [2021-07-10 06:40:01,680 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 188 [2021-07-10 06:40:02,213 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-10 06:40:02,214 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-07-10 06:40:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:40:02,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385653901] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:40:02,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:40:02,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-10 06:40:02,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600859981] [2021-07-10 06:40:02,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-10 06:40:02,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:40:02,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-10 06:40:02,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-07-10 06:40:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:40:02,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:40:02,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.1666666666666665) internal successors, (65), 30 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:40:02,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:40:02,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:40:02,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:40:02,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:40:02,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:40:02,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:40:02,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:40:02,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 06:40:02,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:41:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:41:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:41:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:41:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:41:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:41:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:41:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:41:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 06:41:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:41:48,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-07-10 06:41:48,405 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:41:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:41:48,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1128959833, now seen corresponding path program 6 times [2021-07-10 06:41:48,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:41:48,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946414880] [2021-07-10 06:41:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:41:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:41:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:41:48,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:41:48,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946414880] [2021-07-10 06:41:48,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946414880] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:41:48,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284216196] [2021-07-10 06:41:48,571 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:41:48,609 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-10 06:41:48,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 06:41:48,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-10 06:41:48,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:41:48,877 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:41:48,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284216196] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:41:48,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 06:41:48,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-07-10 06:41:48,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489035982] [2021-07-10 06:41:48,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-10 06:41:48,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 06:41:48,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-10 06:41:48,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-07-10 06:41:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:41:48,879 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 06:41:48,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 06:41:48,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:41:48,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:41:48,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:41:48,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:41:48,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:41:48,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:41:48,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:41:48,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 06:41:48,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:41:48,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 06:41:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:41:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 06:41:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 06:41:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 06:41:49,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:41:49,355 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 06:41:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 06:41:49,355 INFO L82 PathProgramCache]: Analyzing trace with hash -858045307, now seen corresponding path program 7 times [2021-07-10 06:41:49,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 06:41:49,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076242744] [2021-07-10 06:41:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 06:41:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:41:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 06:41:50,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 06:41:50,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076242744] [2021-07-10 06:41:50,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076242744] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 06:41:50,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615025128] [2021-07-10 06:41:50,180 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 06:41:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 06:41:50,219 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-10 06:41:50,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 06:41:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:41:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:41:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:41:51,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 109 [2021-07-10 06:41:51,048 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-10 06:41:51,062 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:41:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:41:51,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:41:51,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 06:41:51,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 06:41:51,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 77 [2021-07-10 06:41:51,078 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-10 06:41:51,090 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:41:51,256 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-10 06:41:51,256 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 06:41:51,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-07-10 06:41:51,734 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 192 [2021-07-10 06:41:52,780 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 239 DAG size of output: 216 [2021-07-10 06:41:55,485 WARN L205 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-07-10 06:41:58,101 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-07-10 06:42:00,947 WARN L205 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-07-10 06:42:10,721 WARN L205 SmtUtils]: Spent 9.77 s on a formula simplification. DAG size of input: 258 DAG size of output: 270 [2021-07-10 06:42:20,342 WARN L205 SmtUtils]: Spent 9.62 s on a formula simplification. DAG size of input: 253 DAG size of output: 274 [2021-07-10 06:42:29,876 WARN L205 SmtUtils]: Spent 9.53 s on a formula simplification. DAG size of input: 248 DAG size of output: 266 [2021-07-10 06:42:32,527 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 240 DAG size of output: 240 [2021-07-10 06:42:32,809 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 145 [2021-07-10 06:42:33,907 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 219 DAG size of output: 219 [2021-07-10 06:42:34,321 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-10 06:42:34,604 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-07-10 06:42:35,015 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 167 [2021-07-10 06:42:35,631 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 161 [2021-07-10 06:42:36,814 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-07-10 06:42:39,921 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 426 DAG size of output: 391 [2021-07-10 06:42:40,080 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 151 [2021-07-10 06:42:47,909 WARN L205 SmtUtils]: Spent 7.83 s on a formula simplification. DAG size of input: 513 DAG size of output: 465 [2021-07-10 06:43:06,985 WARN L205 SmtUtils]: Spent 19.07 s on a formula simplification. DAG size of input: 595 DAG size of output: 525 [2021-07-10 06:43:55,711 WARN L205 SmtUtils]: Spent 48.72 s on a formula simplification. DAG size of input: 694 DAG size of output: 619 [2021-07-10 06:45:52,660 WARN L205 SmtUtils]: Spent 1.95 m on a formula simplification. DAG size of input: 782 DAG size of output: 704 [2021-07-10 06:50:28,309 WARN L205 SmtUtils]: Spent 4.59 m on a formula simplification. DAG size of input: 867 DAG size of output: 788 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown