/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.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 11:24:01,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 11:24:01,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 11:24:01,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 11:24:01,553 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 [2021-07-14 11:24:01,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 11:24:01,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 11:24:01,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 11:24:01,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 11:24:01,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 11:24:01,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 11:24:01,596 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 11:24:01,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 11:24:01,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 11:24:01,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 11:24:01,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 11:24:01,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 11:24:01,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 11:24:01,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 11:24:01,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 11:24:01,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 11:24:01,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 11:24:01,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 11:24:01,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 11:24:01,600 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 11:24:01,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 11:24:01,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 11:24:01,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 11:24:01,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 11:24:01,932 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 11:24:01,933 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 11:24:01,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-07-14 11:24:01,934 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-07-14 11:24:01,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 11:24:01,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 11:24:01,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 11:24:01,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 11:24:01,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 11:24:01,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:01,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:01,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 11:24:01,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 11:24:01,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 11:24:01,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 11:24:02,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... [2021-07-14 11:24:02,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 11:24:02,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 11:24:02,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 11:24:02,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 11:24:02,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 11:24:02,089 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 11:24:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 11:24:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 11:24:02,090 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 11:24:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 11:24:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 11:24:02,090 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 11:24:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 11:24:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 11:24:02,090 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 11:24:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 11:24:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 11:24:02,092 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 11:24:02,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 11:24:02,334 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 11:24:02,336 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 11:24:02 BoogieIcfgContainer [2021-07-14 11:24:02,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 11:24:02,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 11:24:02,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 11:24:02,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 11:24:02,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 11:24:01" (1/2) ... [2021-07-14 11:24:02,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbac9a6 and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 11:24:02, skipping insertion in model container [2021-07-14 11:24:02,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 11:24:02" (2/2) ... [2021-07-14 11:24:02,342 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-07-14 11:24:02,359 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 11:24:02,359 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 11:24:02,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 11:24:02,360 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 11:24:02,442 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 11:24:02,463 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 11:24:02,530 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 11:24:02,530 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 11:24:02,531 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 11:24:02,531 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 11:24:02,531 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 11:24:02,531 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 11:24:02,531 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 11:24:02,532 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 11:24:02,701 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:02,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:02,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1294754641, now seen corresponding path program 1 times [2021-07-14 11:24:02,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:02,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767657819] [2021-07-14 11:24:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:02,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:02,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767657819] [2021-07-14 11:24:02,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767657819] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 11:24:02,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 11:24:02,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 11:24:02,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714698007] [2021-07-14 11:24:02,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 11:24:02,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:02,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 11:24:02,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 11:24:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:02,866 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:02,868 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) [2021-07-14 11:24:02,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:02,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 11:24:02,884 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:02,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:02,885 INFO L82 PathProgramCache]: Analyzing trace with hash -573812561, now seen corresponding path program 1 times [2021-07-14 11:24:02,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:02,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28641769] [2021-07-14 11:24:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 11:24:02,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:02,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28641769] [2021-07-14 11:24:02,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28641769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 11:24:02,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 11:24:02,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 11:24:02,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308061192] [2021-07-14 11:24:02,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 11:24:02,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:02,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 11:24:02,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 11:24:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:02,945 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:02,946 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) [2021-07-14 11:24:02,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:02,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:02,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 11:24:02,981 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:02,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1553043955, now seen corresponding path program 1 times [2021-07-14 11:24:02,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:02,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686757643] [2021-07-14 11:24:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:03,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:03,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686757643] [2021-07-14 11:24:03,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686757643] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:03,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535456073] [2021-07-14 11:24:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:24:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:03,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 11:24:03,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:03,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:24:03,637 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 [2021-07-14 11:24:03,641 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:03,647 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:03,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:24:03,650 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 [2021-07-14 11:24:03,655 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:03,661 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:03,664 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 [2021-07-14 11:24:03,666 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 11:24:03,671 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:03,673 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. [2021-07-14 11:24:03,674 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-14 11:24:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:03,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535456073] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:03,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:03,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 11:24:03,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607021848] [2021-07-14 11:24:03,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 11:24:03,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:03,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 11:24:03,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-14 11:24:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:03,719 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:03,719 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) [2021-07-14 11:24:03,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:03,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:03,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:04,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:24:04,113 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:04,113 INFO L82 PathProgramCache]: Analyzing trace with hash -579044245, now seen corresponding path program 2 times [2021-07-14 11:24:04,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:04,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481476599] [2021-07-14 11:24:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:04,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:04,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481476599] [2021-07-14 11:24:04,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481476599] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:04,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857886576] [2021-07-14 11:24:04,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:24:04,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 11:24:04,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 11:24:04,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 11:24:04,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:04,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857886576] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:04,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:04,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 11:24:04,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505417441] [2021-07-14 11:24:04,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 11:24:04,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:04,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 11:24:04,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-14 11:24:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:04,355 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:04,355 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) [2021-07-14 11:24:04,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:04,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:04,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:04,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:04,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:04,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:24:04,765 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:04,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1258232401, now seen corresponding path program 1 times [2021-07-14 11:24:04,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:04,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041997165] [2021-07-14 11:24:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 11:24:04,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:04,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041997165] [2021-07-14 11:24:04,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041997165] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:04,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390659002] [2021-07-14 11:24:04,851 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 [2021-07-14 11:24:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:04,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 11:24:04,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 11:24:05,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390659002] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:05,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:05,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 11:24:05,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744604676] [2021-07-14 11:24:05,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 11:24:05,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:05,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 11:24:05,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 11:24:05,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:05,009 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:05,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 11:24:05,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:05,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:05,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:05,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:05,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:05,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:24:05,337 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1336527475, now seen corresponding path program 2 times [2021-07-14 11:24:05,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:05,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435771277] [2021-07-14 11:24:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:05,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:05,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435771277] [2021-07-14 11:24:05,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435771277] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:05,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960749394] [2021-07-14 11:24:05,730 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 [2021-07-14 11:24:05,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 11:24:05,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 11:24:05,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-14 11:24:05,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:06,335 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:06,335 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 [2021-07-14 11:24:06,618 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:06,645 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:06,672 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:06,672 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 [2021-07-14 11:24:06,851 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:06,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:06,953 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:06,953 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 [2021-07-14 11:24:07,146 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-14 11:24:07,601 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2021-07-14 11:24:07,602 INFO L628 ElimStorePlain]: treesize reduction 322, result has 68.1 percent of original size [2021-07-14 11:24:07,912 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2021-07-14 11:24:08,276 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. [2021-07-14 11:24:08,276 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:77, output treesize:228 [2021-07-14 11:24:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:08,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960749394] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:08,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:08,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-07-14 11:24:08,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555875263] [2021-07-14 11:24:08,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 11:24:08,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:08,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 11:24:08,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-07-14 11:24:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:08,373 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:08,373 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) [2021-07-14 11:24:08,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:08,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:08,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:08,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:08,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:08,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:09,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:24:09,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 11:24:09,994 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:09,995 INFO L82 PathProgramCache]: Analyzing trace with hash 731317739, now seen corresponding path program 3 times [2021-07-14 11:24:09,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:09,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416975860] [2021-07-14 11:24:09,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:10,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:10,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416975860] [2021-07-14 11:24:10,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416975860] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:10,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023835669] [2021-07-14 11:24:10,077 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 [2021-07-14 11:24:10,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 11:24:10,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 11:24:10,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 11:24:10,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:10,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023835669] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:10,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:10,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-14 11:24:10,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204658752] [2021-07-14 11:24:10,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 11:24:10,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:10,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 11:24:10,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-14 11:24:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:10,324 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:10,325 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) [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:24:10,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:24:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:24:10,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:24:10,942 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:10,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:10,942 INFO L82 PathProgramCache]: Analyzing trace with hash -138760401, now seen corresponding path program 4 times [2021-07-14 11:24:10,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:10,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424642023] [2021-07-14 11:24:10,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 11:24:11,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:11,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424642023] [2021-07-14 11:24:11,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424642023] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:11,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895649416] [2021-07-14 11:24:11,026 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 [2021-07-14 11:24:11,066 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 11:24:11,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 11:24:11,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 11:24:11,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 11:24:11,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895649416] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:11,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:11,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-14 11:24:11,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455374739] [2021-07-14 11:24:11,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 11:24:11,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:11,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 11:24:11,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-14 11:24:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:11,197 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:11,197 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) [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:24:11,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:11,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:24:11,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:24:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 11:24:11,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-07-14 11:24:11,637 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:24:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:24:11,637 INFO L82 PathProgramCache]: Analyzing trace with hash 2141798669, now seen corresponding path program 5 times [2021-07-14 11:24:11,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:24:11,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151319930] [2021-07-14 11:24:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:24:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:24:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:12,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:24:12,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151319930] [2021-07-14 11:24:12,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151319930] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:12,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312608444] [2021-07-14 11:24:12,216 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 [2021-07-14 11:24:12,269 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 11:24:12,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 11:24:12,271 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-14 11:24:12,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:24:22,454 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-07-14 11:24:22,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:24:22,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,630 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 [2021-07-14 11:24:22,635 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:22,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:22,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:24:22,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:24:22,656 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 [2021-07-14 11:24:22,659 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:22,670 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:22,739 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:24:22,739 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 [2021-07-14 11:24:22,912 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2021-07-14 11:24:23,128 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 137 [2021-07-14 11:24:23,330 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 133 [2021-07-14 11:24:23,447 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 11:24:23,709 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2021-07-14 11:24:24,085 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 240 [2021-07-14 11:24:25,174 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-07-14 11:24:26,227 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 307 DAG size of output: 287 [2021-07-14 11:24:27,243 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 315 DAG size of output: 295 [2021-07-14 11:24:27,634 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-14 11:24:28,112 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-07-14 11:24:28,498 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-07-14 11:24:28,660 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-14 11:24:28,791 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-14 11:24:29,590 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-14 11:24:29,984 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-14 11:24:30,357 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-14 11:24:31,129 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2021-07-14 11:24:32,206 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-07-14 11:24:33,240 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 313 DAG size of output: 293 [2021-07-14 11:24:34,234 WARN L205 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-07-14 11:24:35,372 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-07-14 11:24:36,482 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 286 DAG size of output: 288 [2021-07-14 11:24:37,442 WARN L205 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-07-14 11:24:37,931 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2021-07-14 11:24:38,246 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-07-14 11:24:38,567 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 147 [2021-07-14 11:24:38,955 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-14 11:24:39,420 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 231 [2021-07-14 11:24:39,755 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 184 [2021-07-14 11:24:39,883 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-14 11:24:40,014 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 198 [2021-07-14 11:24:40,703 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 242 [2021-07-14 11:24:41,070 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-14 11:24:41,462 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 240 [2021-07-14 11:24:42,451 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 287 [2021-07-14 11:24:43,434 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-07-14 11:24:44,427 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 285 [2021-07-14 11:24:45,564 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 287 DAG size of output: 289 [2021-07-14 11:24:45,567 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 11:24:47,889 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 290 DAG size of output: 248 [2021-07-14 11:24:47,890 INFO L628 ElimStorePlain]: treesize reduction 15036, result has 42.6 percent of original size [2021-07-14 11:24:48,284 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 249 [2021-07-14 11:24:48,569 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 236 [2021-07-14 11:24:48,672 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 188 [2021-07-14 11:24:49,468 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 188 [2021-07-14 11:24:49,987 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. [2021-07-14 11:24:49,987 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-07-14 11:24:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:24:50,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312608444] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:24:50,020 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:24:50,020 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-14 11:24:50,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055462135] [2021-07-14 11:24:50,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 11:24:50,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:24:50,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 11:24:50,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-07-14 11:24:50,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:24:50,025 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:24:50,025 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) [2021-07-14 11:24:50,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:24:50,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:24:50,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:24:50,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:24:50,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:24:50,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:24:50,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:24:50,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 11:24:50,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:26:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 11:26:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 11:26:36,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-07-14 11:26:36,765 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:26:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:26:36,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1128959833, now seen corresponding path program 6 times [2021-07-14 11:26:36,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:26:36,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791237195] [2021-07-14 11:26:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:26:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:26:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:26:36,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:26:36,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791237195] [2021-07-14 11:26:36,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791237195] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:26:36,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020744557] [2021-07-14 11:26:36,957 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 [2021-07-14 11:26:36,996 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 11:26:36,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 11:26:36,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 11:26:36,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:26:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:26:37,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020744557] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:26:37,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 11:26:37,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-07-14 11:26:37,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143142122] [2021-07-14 11:26:37,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 11:26:37,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 11:26:37,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 11:26:37,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-07-14 11:26:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:26:37,256 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 11:26:37,256 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) [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 11:26:37,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 11:26:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 11:26:37,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 11:26:37,765 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 11:26:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 11:26:37,766 INFO L82 PathProgramCache]: Analyzing trace with hash -858045307, now seen corresponding path program 7 times [2021-07-14 11:26:37,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 11:26:37,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318393163] [2021-07-14 11:26:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 11:26:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:26:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 11:26:38,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 11:26:38,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318393163] [2021-07-14 11:26:38,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318393163] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 11:26:38,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792613079] [2021-07-14 11:26:38,618 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 [2021-07-14 11:26:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 11:26:38,658 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-14 11:26:38,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 11:26:39,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:26:39,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:26:39,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:26:39,490 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 [2021-07-14 11:26:39,494 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 11:26:39,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:26:39,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:26:39,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:26:39,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 11:26:39,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 11:26:39,519 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 [2021-07-14 11:26:39,522 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 11:26:39,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:26:39,656 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-14 11:26:39,657 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 11:26:39,657 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 [2021-07-14 11:26:40,117 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 192 [2021-07-14 11:26:41,173 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 239 DAG size of output: 216 [2021-07-14 11:26:43,864 WARN L205 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-07-14 11:26:46,462 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 270 DAG size of output: 240 [2021-07-14 11:26:49,306 WARN L205 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-07-14 11:26:58,916 WARN L205 SmtUtils]: Spent 9.60 s on a formula simplification. DAG size of input: 258 DAG size of output: 270 [2021-07-14 11:27:08,368 WARN L205 SmtUtils]: Spent 9.45 s on a formula simplification. DAG size of input: 253 DAG size of output: 274 [2021-07-14 11:27:17,967 WARN L205 SmtUtils]: Spent 9.59 s on a formula simplification. DAG size of input: 248 DAG size of output: 266 [2021-07-14 11:27:20,594 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 240 DAG size of output: 240 [2021-07-14 11:27:20,866 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 145 [2021-07-14 11:27:21,911 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 219 DAG size of output: 219 [2021-07-14 11:27:22,355 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-14 11:27:22,647 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-07-14 11:27:23,067 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 167 [2021-07-14 11:27:23,668 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 161 [2021-07-14 11:27:24,887 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 326 DAG size of output: 308 [2021-07-14 11:27:27,960 WARN L205 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 426 DAG size of output: 391 [2021-07-14 11:27:28,130 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 151 [2021-07-14 11:27:35,882 WARN L205 SmtUtils]: Spent 7.75 s on a formula simplification. DAG size of input: 513 DAG size of output: 465 [2021-07-14 11:27:54,934 WARN L205 SmtUtils]: Spent 19.05 s on a formula simplification. DAG size of input: 595 DAG size of output: 525 [2021-07-14 11:28:43,506 WARN L205 SmtUtils]: Spent 48.57 s on a formula simplification. DAG size of input: 694 DAG size of output: 619 [2021-07-14 11:30:42,690 WARN L205 SmtUtils]: Spent 1.99 m on a formula simplification. DAG size of input: 782 DAG size of output: 704 [2021-07-14 11:35:18,681 WARN L205 SmtUtils]: Spent 4.60 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