/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 10:13:26,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 10:13:26,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 10:13:26,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 10:13:26,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 10:13:26,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 10:13:26,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 10:13:26,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 10:13:26,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 10:13:26,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 10:13:26,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 10:13:26,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 10:13:26,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 10:13:26,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 10:13:26,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 10:13:26,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 10:13:26,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 10:13:26,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 10:13:26,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 10:13:26,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 10:13:26,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 10:13:26,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 10:13:26,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 10:13:26,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 10:13:26,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 10:13:26,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 10:13:26,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 10:13:26,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 10:13:26,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 10:13:26,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-12 10:13:26,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 10:13:26,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 10:13:26,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 10:13:26,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 10:13:26,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 10:13:26,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 10:13:26,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 10:13:26,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 10:13:26,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 10:13:26,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 10:13:26,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 10:13:26,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf [2021-03-12 10:13:26,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 10:13:26,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 10:13:26,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 10:13:26,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 10:13:26,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 10:13:26,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 10:13:26,297 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 10:13:26,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 10:13:26,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 10:13:26,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 10:13:26,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 10:13:26,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 10:13:26,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 10:13:26,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 10:13:26,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 10:13:26,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 10:13:26,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 10:13:26,301 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 10:13:26,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 10:13:26,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 10:13:26,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 10:13:26,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 10:13:26,577 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 10:13:26,578 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 10:13:26,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl [2021-03-12 10:13:26,579 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq.wvr.bpl' [2021-03-12 10:13:26,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 10:13:26,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 10:13:26,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 10:13:26,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 10:13:26,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 10:13:26,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 10:13:26,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 10:13:26,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 10:13:26,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 10:13:26,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... [2021-03-12 10:13:26,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 10:13:26,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 10:13:26,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 10:13:26,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 10:13:26,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 10:13:26,712 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 10:13:26,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 10:13:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 10:13:26,712 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 10:13:26,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 10:13:26,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 10:13:26,712 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 10:13:26,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 10:13:26,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 10:13:26,713 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 10:13:26,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 10:13:26,935 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 10:13:26,936 INFO L202 PluginConnector]: Adding new model inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:13:26 BoogieIcfgContainer [2021-03-12 10:13:26,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 10:13:26,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 10:13:26,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 10:13:26,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 10:13:26,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 10:13:26" (1/2) ... [2021-03-12 10:13:26,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665754e and model type inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 10:13:26, skipping insertion in model container [2021-03-12 10:13:26,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 10:13:26" (2/2) ... [2021-03-12 10:13:26,941 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq.wvr.bpl [2021-03-12 10:13:26,944 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 10:13:26,944 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 10:13:26,946 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 10:13:26,947 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 10:13:26,983 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-12 10:13:27,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 10:13:27,054 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 10:13:27,054 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 10:13:27,054 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 10:13:27,054 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 10:13:27,055 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 10:13:27,055 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 10:13:27,055 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 10:13:27,055 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 10:13:27,167 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1116390347, now seen corresponding path program 1 times [2021-03-12 10:13:27,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:27,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808165481] [2021-03-12 10:13:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:27,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808165481] [2021-03-12 10:13:27,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:13:27,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 10:13:27,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789824319] [2021-03-12 10:13:27,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 10:13:27,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:27,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 10:13:27,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 10:13:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,312 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:27,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:27,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 10:13:27,382 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:27,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:27,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1484219061, now seen corresponding path program 1 times [2021-03-12 10:13:27,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:27,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280348107] [2021-03-12 10:13:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:13:27,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280348107] [2021-03-12 10:13:27,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:13:27,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 10:13:27,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950247532] [2021-03-12 10:13:27,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 10:13:27,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:27,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 10:13:27,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 10:13:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,440 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:27,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:27,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 10:13:27,467 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:27,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:27,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1675419287, now seen corresponding path program 2 times [2021-03-12 10:13:27,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:27,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045626710] [2021-03-12 10:13:27,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 10:13:27,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045626710] [2021-03-12 10:13:27,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 10:13:27,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 10:13:27,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852093884] [2021-03-12 10:13:27,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 10:13:27,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:27,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 10:13:27,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 10:13:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,489 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:27,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:27,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-12 10:13:27,498 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:27,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1507447386, now seen corresponding path program 1 times [2021-03-12 10:13:27,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:27,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542228262] [2021-03-12 10:13:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:27,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542228262] [2021-03-12 10:13:27,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819717945] [2021-03-12 10:13:27,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:27,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-12 10:13:27,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:27,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 9 [2021-03-12 10:13:27,779 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:27,792 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:27,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:13:27,795 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-03-12 10:13:27,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 7 [2021-03-12 10:13:27,841 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:27,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:27,846 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:13:27,846 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-03-12 10:13:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:27,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:27,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-03-12 10:13:27,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68705468] [2021-03-12 10:13:27,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 10:13:27,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 10:13:27,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-03-12 10:13:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,870 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:27,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:27,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:28,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:28,194 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:28,195 INFO L82 PathProgramCache]: Analyzing trace with hash 392188772, now seen corresponding path program 1 times [2021-03-12 10:13:28,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:28,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077786425] [2021-03-12 10:13:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 10:13:28,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077786425] [2021-03-12 10:13:28,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829992467] [2021-03-12 10:13:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:28,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-12 10:13:28,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 10:13:28,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:28,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-03-12 10:13:28,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027574259] [2021-03-12 10:13:28,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 10:13:28,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:28,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 10:13:28,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-12 10:13:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:28,396 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:28,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:28,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:28,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:28,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:28,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:28,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:28,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:28,643 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:28,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:28,644 INFO L82 PathProgramCache]: Analyzing trace with hash 696560499, now seen corresponding path program 2 times [2021-03-12 10:13:28,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:28,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592732440] [2021-03-12 10:13:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:28,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592732440] [2021-03-12 10:13:28,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540471060] [2021-03-12 10:13:28,885 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:28,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:13:28,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:13:28,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-12 10:13:28,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:29,126 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:29,126 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2021-03-12 10:13:29,135 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:29,142 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:29,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:13:29,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:40, output treesize:26 [2021-03-12 10:13:29,267 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-03-12 10:13:29,267 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2021-03-12 10:13:29,269 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:29,272 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:29,273 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:13:29,273 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:5 [2021-03-12 10:13:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:29,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:29,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 23 [2021-03-12 10:13:29,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384937845] [2021-03-12 10:13:29,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-12 10:13:29,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:29,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-12 10:13:29,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2021-03-12 10:13:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:29,292 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:29,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:29,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:29,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:29,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:29,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:29,749 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:29,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:29,750 INFO L82 PathProgramCache]: Analyzing trace with hash -233153263, now seen corresponding path program 2 times [2021-03-12 10:13:29,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:29,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448487341] [2021-03-12 10:13:29,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 10:13:29,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448487341] [2021-03-12 10:13:29,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79932135] [2021-03-12 10:13:29,812 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 [2021-03-12 10:13:29,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 10:13:29,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:13:29,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-12 10:13:29,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 10:13:29,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:29,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 8 [2021-03-12 10:13:29,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753016983] [2021-03-12 10:13:29,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 10:13:29,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:29,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 10:13:29,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-03-12 10:13:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:29,915 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:29,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:29,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:30,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:30,172 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:30,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:30,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1353098016, now seen corresponding path program 3 times [2021-03-12 10:13:30,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:30,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92494156] [2021-03-12 10:13:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:30,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92494156] [2021-03-12 10:13:30,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593418849] [2021-03-12 10:13:30,552 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 [2021-03-12 10:13:30,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-12 10:13:30,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:13:30,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 36 conjunts are in the unsatisfiable core [2021-03-12 10:13:30,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:30,907 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:30,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 53 [2021-03-12 10:13:30,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:30,964 INFO L628 ElimStorePlain]: treesize reduction 43, result has 60.2 percent of original size [2021-03-12 10:13:30,968 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:13:30,969 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:56, output treesize:37 [2021-03-12 10:13:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:13:31,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:13:31,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:13:31,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:13:31,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:13:31,330 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:31,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 41 [2021-03-12 10:13:31,372 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-03-12 10:13:31,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:31,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:13:31,393 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:52, output treesize:21 [2021-03-12 10:13:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:31,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:31,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 39 [2021-03-12 10:13:31,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143792137] [2021-03-12 10:13:31,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-03-12 10:13:31,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:31,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-03-12 10:13:31,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2021-03-12 10:13:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:31,460 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:31,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:31,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:31,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:31,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:31,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:31,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:31,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:31,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:31,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:13:32,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:32,459 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:32,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1578753977, now seen corresponding path program 4 times [2021-03-12 10:13:32,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:32,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302280118] [2021-03-12 10:13:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:33,040 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:33,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302280118] [2021-03-12 10:13:33,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407154856] [2021-03-12 10:13:33,040 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 [2021-03-12 10:13:33,064 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 10:13:33,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:13:33,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 47 conjunts are in the unsatisfiable core [2021-03-12 10:13:33,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:33,606 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:33,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 61 treesize of output 87 [2021-03-12 10:13:33,622 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:33,699 INFO L628 ElimStorePlain]: treesize reduction 51, result has 73.2 percent of original size [2021-03-12 10:13:33,745 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:13:33,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:72, output treesize:72 [2021-03-12 10:13:34,137 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-03-12 10:13:34,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 16 [2021-03-12 10:13:34,139 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:34,142 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:34,142 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:13:34,142 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:5 [2021-03-12 10:13:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:34,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:34,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 26] total 49 [2021-03-12 10:13:34,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632520135] [2021-03-12 10:13:34,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-03-12 10:13:34,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:34,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-03-12 10:13:34,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2161, Unknown=0, NotChecked=0, Total=2450 [2021-03-12 10:13:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:34,157 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:34,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 1.7) internal successors, (85), 49 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:34,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:34,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:34,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:34,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:34,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:34,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:34,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:34,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:13:34,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:13:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:13:35,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:35,503 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:35,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash -964360489, now seen corresponding path program 3 times [2021-03-12 10:13:35,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:35,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021781855] [2021-03-12 10:13:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 10:13:35,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021781855] [2021-03-12 10:13:35,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7856526] [2021-03-12 10:13:35,598 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:35,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-12 10:13:35,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:13:35,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 10:13:35,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 10:13:35,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:13:35,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 12 [2021-03-12 10:13:35,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629851] [2021-03-12 10:13:35,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 10:13:35,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:13:35,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 10:13:35,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-03-12 10:13:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:35,718 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:13:35,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:13:35,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:13:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:13:35,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:13:35,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-03-12 10:13:35,975 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:13:35,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:13:35,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1821942298, now seen corresponding path program 5 times [2021-03-12 10:13:35,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:13:35,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811615149] [2021-03-12 10:13:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:13:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:13:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:13:36,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811615149] [2021-03-12 10:13:36,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539407292] [2021-03-12 10:13:36,856 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:13:36,891 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-12 10:13:36,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:13:36,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 57 conjunts are in the unsatisfiable core [2021-03-12 10:13:36,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:13:37,904 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:13:37,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 75 treesize of output 127 [2021-03-12 10:13:37,920 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:13:38,036 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-03-12 10:13:38,037 INFO L628 ElimStorePlain]: treesize reduction 137, result has 58.5 percent of original size [2021-03-12 10:13:38,070 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:13:38,070 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:86, output treesize:57 [2021-03-12 10:13:48,313 WARN L205 SmtUtils]: Spent 4.82 s on a formula simplification that was a NOOP. DAG size: 42 [2021-03-12 10:13:53,573 WARN L205 SmtUtils]: Spent 5.12 s on a formula simplification that was a NOOP. DAG size: 62 [2021-03-12 10:13:58,532 WARN L205 SmtUtils]: Spent 3.68 s on a formula simplification that was a NOOP. DAG size: 66 [2021-03-12 10:14:23,178 WARN L205 SmtUtils]: Spent 23.72 s on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-03-12 10:14:40,247 WARN L205 SmtUtils]: Spent 14.52 s on a formula simplification that was a NOOP. DAG size: 88 [2021-03-12 10:15:00,024 WARN L205 SmtUtils]: Spent 16.93 s on a formula simplification that was a NOOP. DAG size: 88 [2021-03-12 10:15:50,125 WARN L205 SmtUtils]: Spent 44.70 s on a formula simplification. DAG size of input: 155 DAG size of output: 109 [2021-03-12 10:16:16,002 WARN L205 SmtUtils]: Spent 19.34 s on a formula simplification that was a NOOP. DAG size: 109 [2021-03-12 10:16:17,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:17,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,921 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:17,956 INFO L244 Elim1Store]: Index analysis took 531 ms [2021-03-12 10:16:17,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 22 [2021-03-12 10:16:17,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:16:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,158 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,397 INFO L244 Elim1Store]: Index analysis took 402 ms [2021-03-12 10:16:18,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 22 [2021-03-12 10:16:18,413 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-12 10:16:18,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,729 INFO L244 Elim1Store]: Index analysis took 292 ms [2021-03-12 10:16:18,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 19 [2021-03-12 10:16:18,746 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-12 10:16:18,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:16:18,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:16:18,954 INFO L244 Elim1Store]: Index analysis took 193 ms [2021-03-12 10:16:18,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 22 [2021-03-12 10:16:18,969 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-12 10:16:19,045 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:16:19,057 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:16:19,058 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:305, output treesize:5 [2021-03-12 10:16:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 94 refuted. 6 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:16:19,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:16:19,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32] total 64 [2021-03-12 10:16:19,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140974014] [2021-03-12 10:16:19,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-03-12 10:16:19,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:16:19,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-03-12 10:16:19,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=3822, Unknown=5, NotChecked=0, Total=4160 [2021-03-12 10:16:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:16:19,250 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:16:19,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 1.676923076923077) internal successors, (109), 64 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:16:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:16:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:16:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:16:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:16:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:16:22,623 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2021-03-12 10:16:24,065 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 21 [2021-03-12 10:16:25,495 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-03-12 10:16:26,830 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2021-03-12 10:16:28,756 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2021-03-12 10:16:30,496 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2021-03-12 10:16:32,199 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-03-12 10:16:33,684 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2021-03-12 10:16:35,023 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2021-03-12 10:16:36,653 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2021-03-12 10:16:38,241 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2021-03-12 10:16:39,272 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-03-12 10:16:40,395 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2021-03-12 10:16:41,711 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-03-12 10:16:43,614 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-12 10:16:45,311 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-03-12 10:16:52,055 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-03-12 10:16:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:16:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:16:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:16:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-12 10:16:56,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:16:56,020 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:16:56,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:16:56,021 INFO L82 PathProgramCache]: Analyzing trace with hash 904748543, now seen corresponding path program 6 times [2021-03-12 10:16:56,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:16:56,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581367658] [2021-03-12 10:16:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:16:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:16:56,473 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2021-03-12 10:16:56,707 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2021-03-12 10:16:56,915 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2021-03-12 10:16:57,157 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2021-03-12 10:16:57,460 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2021-03-12 10:16:57,670 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-03-12 10:16:58,188 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-03-12 10:16:58,400 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-03-12 10:16:58,631 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-03-12 10:16:58,892 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-03-12 10:16:59,185 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-03-12 10:16:59,471 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-03-12 10:16:59,756 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-03-12 10:17:00,093 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 10:17:00,463 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-12 10:17:00,801 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-03-12 10:17:01,183 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 10:17:01,591 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-12 10:17:02,016 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-03-12 10:17:02,460 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-12 10:17:02,941 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-12 10:17:03,463 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:17:03,928 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-12 10:17:04,395 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-12 10:17:04,861 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-03-12 10:17:05,316 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-03-12 10:17:05,758 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-03-12 10:17:06,181 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-03-12 10:17:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:17:11,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581367658] [2021-03-12 10:17:11,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489178433] [2021-03-12 10:17:11,307 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:17:11,354 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-12 10:17:11,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 10:17:11,356 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 72 conjunts are in the unsatisfiable core [2021-03-12 10:17:11,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:17:16,494 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-12 10:17:21,442 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-03-12 10:17:24,464 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-03-12 10:17:24,468 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:17:24,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 179 [2021-03-12 10:17:24,540 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:17:27,208 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2021-03-12 10:17:27,212 INFO L628 ElimStorePlain]: treesize reduction 209, result has 58.5 percent of original size [2021-03-12 10:17:27,687 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:17:27,687 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:104, output treesize:90 [2021-03-12 10:17:28,513 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-12 10:17:29,268 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-12 10:17:30,027 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:17:30,726 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:17:31,425 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-03-12 10:17:32,252 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-03-12 10:17:32,941 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-12 10:17:33,666 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-03-12 10:17:34,822 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-03-12 10:17:35,543 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-12 10:17:36,183 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-03-12 10:17:37,278 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-03-12 10:17:37,816 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-12 10:17:39,282 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2021-03-12 10:17:40,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-12 10:17:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 10:17:40,196 INFO L244 Elim1Store]: Index analysis took 158 ms [2021-03-12 10:17:40,470 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-03-12 10:17:40,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:17:40,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 80 [2021-03-12 10:17:40,696 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-03-12 10:17:40,830 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-03-12 10:17:40,832 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:17:40,874 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:17:40,874 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:85, output treesize:17 [2021-03-12 10:17:41,714 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2021-03-12 10:17:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:17:41,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:17:41,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 39] total 79 [2021-03-12 10:17:41,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143030329] [2021-03-12 10:17:41,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-03-12 10:17:41,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:17:41,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-03-12 10:17:41,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=661, Invalid=5659, Unknown=0, NotChecked=0, Total=6320 [2021-03-12 10:17:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:17:41,824 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:17:41,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 1.6125) internal successors, (129), 79 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:17:41,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:17:41,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:17:41,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:17:41,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:17:41,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:17:41,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:17:41,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:17:41,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:17:41,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:17:41,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:17:41,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-03-12 10:17:41,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:17:45,782 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-03-12 10:17:48,521 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-12 10:17:51,698 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-03-12 10:17:53,350 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-12 10:17:56,787 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-03-12 10:17:58,729 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-03-12 10:18:00,392 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-03-12 10:18:02,884 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-12 10:18:04,166 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-03-12 10:18:05,096 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-03-12 10:18:06,711 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2021-03-12 10:18:07,524 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-12 10:18:08,064 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2021-03-12 10:18:08,530 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-03-12 10:18:09,013 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2021-03-12 10:18:09,405 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2021-03-12 10:18:09,797 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2021-03-12 10:18:10,140 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2021-03-12 10:18:10,500 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2021-03-12 10:18:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:18:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:18:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:18:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:18:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-12 10:18:11,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-03-12 10:18:11,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:18:11,975 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 10:18:11,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 10:18:11,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1764623020, now seen corresponding path program 7 times [2021-03-12 10:18:11,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 10:18:11,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180035929] [2021-03-12 10:18:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 10:18:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:18:14,404 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-12 10:18:14,847 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 10:18:15,095 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-12 10:18:15,373 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-03-12 10:18:15,638 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-12 10:18:15,936 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-12 10:18:16,274 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-12 10:18:16,626 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-03-12 10:18:16,949 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-03-12 10:18:17,296 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-12 10:18:17,647 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-12 10:18:17,975 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:18,311 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 10:18:18,972 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-12 10:18:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:18:24,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180035929] [2021-03-12 10:18:24,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70418675] [2021-03-12 10:18:24,855 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:18:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 10:18:24,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 83 conjunts are in the unsatisfiable core [2021-03-12 10:18:24,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 10:18:39,964 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-03-12 10:18:41,064 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-03-12 10:18:41,067 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:18:41,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 109 treesize of output 237 [2021-03-12 10:18:41,140 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:18:44,769 WARN L205 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-03-12 10:18:44,772 INFO L628 ElimStorePlain]: treesize reduction 247, result has 63.8 percent of original size [2021-03-12 10:18:45,742 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-12 10:18:45,743 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:120, output treesize:128 [2021-03-12 10:18:46,854 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:18:47,452 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:48,109 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:48,675 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:18:49,443 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-03-12 10:18:50,069 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:50,692 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:18:51,490 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-03-12 10:18:52,135 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:52,771 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:18:53,603 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-03-12 10:18:54,266 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:54,950 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:18:55,795 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-03-12 10:18:56,497 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:57,191 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 10:18:58,039 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-03-12 10:18:58,711 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 10:18:58,799 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-03-12 10:18:58,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 [2021-03-12 10:18:58,811 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 10:18:58,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 10:18:58,850 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 10:18:58,851 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-03-12 10:18:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 10:18:59,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 10:18:59,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 44] total 88 [2021-03-12 10:18:59,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53744547] [2021-03-12 10:18:59,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-03-12 10:18:59,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 10:18:59,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-03-12 10:18:59,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=697, Invalid=7135, Unknown=0, NotChecked=0, Total=7832 [2021-03-12 10:18:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:18:59,014 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 10:18:59,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 1.5617977528089888) internal successors, (139), 88 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-03-12 10:18:59,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 10:19:04,490 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-03-12 10:19:07,613 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2021-03-12 10:19:11,316 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-03-12 10:19:13,615 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-12 10:19:17,456 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2021-03-12 10:19:19,897 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-03-12 10:19:39,995 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-03-12 10:19:40,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 10:19:40,204 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.search(SleepSetDelayReduction.java:182) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.(SleepSetDelayReduction.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:195) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:507) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 40 more [2021-03-12 10:19:40,208 INFO L168 Benchmark]: Toolchain (without parser) took 373592.50 ms. Allocated memory was 255.9 MB in the beginning and 511.7 MB in the end (delta: 255.9 MB). Free memory was 235.9 MB in the beginning and 432.0 MB in the end (delta: -196.1 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.0 GB. [2021-03-12 10:19:40,208 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 10:19:40,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.09 ms. Allocated memory is still 255.9 MB. Free memory was 235.5 MB in the beginning and 234.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 10:19:40,209 INFO L168 Benchmark]: Boogie Preprocessor took 13.45 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 233.0 MB in the end (delta: 914.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 10:19:40,209 INFO L168 Benchmark]: RCFGBuilder took 277.10 ms. Allocated memory is still 255.9 MB. Free memory was 233.0 MB in the beginning and 236.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-12 10:19:40,209 INFO L168 Benchmark]: TraceAbstraction took 373270.50 ms. Allocated memory was 255.9 MB in the beginning and 511.7 MB in the end (delta: 255.9 MB). Free memory was 235.4 MB in the beginning and 432.0 MB in the end (delta: -196.7 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.0 GB. [2021-03-12 10:19:40,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.09 ms. Allocated memory is still 255.9 MB. Free memory was 235.5 MB in the beginning and 234.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.45 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 233.0 MB in the end (delta: 914.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 277.10 ms. Allocated memory is still 255.9 MB. Free memory was 233.0 MB in the beginning and 236.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 373270.50 ms. Allocated memory was 255.9 MB in the beginning and 511.7 MB in the end (delta: 255.9 MB). Free memory was 235.4 MB in the beginning and 432.0 MB in the end (delta: -196.7 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...