/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-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-13 02:13:24,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-13 02:13:24,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-13 02:13:24,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-13 02:13:24,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-13 02:13:24,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-13 02:13:24,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-13 02:13:24,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-13 02:13:24,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-13 02:13:24,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-13 02:13:24,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-13 02:13:24,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-13 02:13:24,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-13 02:13:24,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-13 02:13:24,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-13 02:13:24,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-13 02:13:24,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-13 02:13:24,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-13 02:13:24,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-13 02:13:24,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-13 02:13:24,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-13 02:13:24,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-13 02:13:24,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-13 02:13:24,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-13 02:13:24,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-13 02:13:24,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-13 02:13:24,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-13 02:13:24,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-13 02:13:24,378 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-SemanticLbe-Delay.epf [2021-03-13 02:13:24,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-13 02:13:24,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-13 02:13:24,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-13 02:13:24,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-13 02:13:24,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-13 02:13:24,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-13 02:13:24,418 INFO L138 SettingsManager]: * Use SBE=true [2021-03-13 02:13:24,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-13 02:13:24,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-13 02:13:24,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-13 02:13:24,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-13 02:13:24,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-13 02:13:24,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-13 02:13:24,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-13 02:13:24,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-13 02:13:24,420 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-13 02:13:24,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-13 02:13:24,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-13 02:13:24,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-13 02:13:24,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-13 02:13:24,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-13 02:13:24,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-13 02:13:24,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-13 02:13:24,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 02:13:24,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-13 02:13:24,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-13 02:13:24,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-13 02:13:24,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-13 02:13:24,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-13 02:13:24,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-13 02:13:24,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-13 02:13:24,423 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-13 02:13:24,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-13 02:13:24,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-13 02:13:24,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-13 02:13:24,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-13 02:13:24,761 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-13 02:13:24,763 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-13 02:13:24,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-03-13 02:13:24,764 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-03-13 02:13:24,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-13 02:13:24,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-13 02:13:24,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-13 02:13:24,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-13 02:13:24,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-13 02:13:24,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-13 02:13:24,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-13 02:13:24,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-13 02:13:24,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-13 02:13:24,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/1) ... [2021-03-13 02:13:24,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-13 02:13:24,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-13 02:13:24,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-13 02:13:24,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-13 02:13:24,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (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 [2021-03-13 02:13:24,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-13 02:13:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-13 02:13:24,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-13 02:13:24,935 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-13 02:13:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-13 02:13:24,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-13 02:13:24,936 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-13 02:13:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-13 02:13:24,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-13 02:13:24,936 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-13 02:13:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-13 02:13:24,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-13 02:13:24,937 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-13 02:13:25,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-13 02:13:25,129 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-13 02:13:25,130 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 02:13:25 BoogieIcfgContainer [2021-03-13 02:13:25,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-13 02:13:25,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-13 02:13:25,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-13 02:13:25,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-13 02:13:25,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 02:13:24" (1/2) ... [2021-03-13 02:13:25,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56710dab and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 02:13:25, skipping insertion in model container [2021-03-13 02:13:25,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 02:13:25" (2/2) ... [2021-03-13 02:13:25,137 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-03-13 02:13:25,142 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-13 02:13:25,142 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-13 02:13:25,145 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-13 02:13:25,145 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-13 02:13:25,177 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-13 02:13:25,192 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 02:13:25,237 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 02:13:25,238 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 02:13:25,238 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 02:13:25,238 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 02:13:25,238 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 02:13:25,238 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 02:13:25,238 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 02:13:25,238 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 02:13:25,245 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 02:13:25,245 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 33 transitions, 90 flow [2021-03-13 02:13:25,252 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 33 transitions, 90 flow [2021-03-13 02:13:25,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 33 transitions, 90 flow [2021-03-13 02:13:25,309 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-13 02:13:25,309 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-13 02:13:25,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-03-13 02:13:25,312 INFO L116 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-13 02:13:25,753 INFO L131 LiptonReduction]: Checked pairs total: 356 [2021-03-13 02:13:25,754 INFO L133 LiptonReduction]: Total number of compositions: 13 [2021-03-13 02:13:25,864 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:25,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:25,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1031076410, now seen corresponding path program 1 times [2021-03-13 02:13:25,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:25,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549477859] [2021-03-13 02:13:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:26,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549477859] [2021-03-13 02:13:26,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589545427] [2021-03-13 02:13:26,081 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 [2021-03-13 02:13:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:26,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-13 02:13:26,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-13 02:13:26,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-13 02:13:26,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-03-13 02:13:26,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170650020] [2021-03-13 02:13:26,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 02:13:26,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:26,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 02:13:26,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-13 02:13:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:26,233 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:26,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 02:13:26,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:26,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-03-13 02:13:26,500 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:26,500 INFO L82 PathProgramCache]: Analyzing trace with hash -591406068, now seen corresponding path program 1 times [2021-03-13 02:13:26,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:26,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925008883] [2021-03-13 02:13:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:26,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925008883] [2021-03-13 02:13:26,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 02:13:26,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 02:13:26,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698513083] [2021-03-13 02:13:26,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-13 02:13:26,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:26,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-13 02:13:26,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-13 02:13:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:26,537 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:26,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-03-13 02:13:26,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-13 02:13:26,566 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:26,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:26,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1616366924, now seen corresponding path program 2 times [2021-03-13 02:13:26,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:26,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831549402] [2021-03-13 02:13:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:26,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831549402] [2021-03-13 02:13:26,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107882651] [2021-03-13 02:13:26,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:26,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:13:26,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:26,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-13 02:13:26,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:26,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-13 02:13:26,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:26,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2021-03-13 02:13:26,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004074701] [2021-03-13 02:13:26,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 02:13:26,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:26,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 02:13:26,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-03-13 02:13:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:26,828 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:26,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-03-13 02:13:26,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:27,076 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:27,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1218489942, now seen corresponding path program 3 times [2021-03-13 02:13:27,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:27,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958365234] [2021-03-13 02:13:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:27,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958365234] [2021-03-13 02:13:27,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96680969] [2021-03-13 02:13:27,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:27,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-13 02:13:27,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:27,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-13 02:13:27,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 02:13:27,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:27,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-03-13 02:13:27,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452658948] [2021-03-13 02:13:27,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 02:13:27,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:27,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 02:13:27,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-03-13 02:13:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:27,362 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:27,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 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) [2021-03-13 02:13:27,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:27,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:27,732 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:27,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:27,732 INFO L82 PathProgramCache]: Analyzing trace with hash 665906968, now seen corresponding path program 4 times [2021-03-13 02:13:27,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:27,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112058569] [2021-03-13 02:13:27,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:28,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112058569] [2021-03-13 02:13:28,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767173677] [2021-03-13 02:13:28,106 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:28,146 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-13 02:13:28,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:28,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-13 02:13:28,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:28,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:28,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2021-03-13 02:13:28,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527120078] [2021-03-13 02:13:28,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-13 02:13:28,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:28,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-13 02:13:28,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2021-03-13 02:13:28,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:28,678 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:28,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 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) [2021-03-13 02:13:28,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:28,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:28,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:29,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-03-13 02:13:29,099 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:29,100 INFO L82 PathProgramCache]: Analyzing trace with hash -983475628, now seen corresponding path program 5 times [2021-03-13 02:13:29,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:29,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313054648] [2021-03-13 02:13:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-13 02:13:29,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313054648] [2021-03-13 02:13:29,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279568946] [2021-03-13 02:13:29,490 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:29,542 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-03-13 02:13:29,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:29,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-13 02:13:29,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:30,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:30,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2021-03-13 02:13:30,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321661200] [2021-03-13 02:13:30,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-13 02:13:30,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:30,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-13 02:13:30,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2021-03-13 02:13:30,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:30,452 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:30,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 26 states have internal predecessors, (53), 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) [2021-03-13 02:13:30,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:30,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:30,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:30,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:30,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:30,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:30,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:30,963 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:30,964 INFO L82 PathProgramCache]: Analyzing trace with hash 994263892, now seen corresponding path program 6 times [2021-03-13 02:13:30,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:30,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440275773] [2021-03-13 02:13:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-03-13 02:13:31,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440275773] [2021-03-13 02:13:31,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853364529] [2021-03-13 02:13:31,335 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:31,375 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-03-13 02:13:31,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:31,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-13 02:13:31,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:32,284 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2021-03-13 02:13:32,447 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2021-03-13 02:13:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:32,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:32,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2021-03-13 02:13:32,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851755317] [2021-03-13 02:13:32,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-13 02:13:32,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:32,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-13 02:13:32,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2021-03-13 02:13:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:32,618 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:32,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 26 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) [2021-03-13 02:13:32,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:32,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:32,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:32,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:32,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:32,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:32,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:13:33,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-13 02:13:33,424 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:33,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:33,425 INFO L82 PathProgramCache]: Analyzing trace with hash 2135441074, now seen corresponding path program 7 times [2021-03-13 02:13:33,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:33,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854927322] [2021-03-13 02:13:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-03-13 02:13:34,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854927322] [2021-03-13 02:13:34,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731334995] [2021-03-13 02:13:34,161 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:34,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-13 02:13:34,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:34,781 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2021-03-13 02:13:34,946 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2021-03-13 02:13:35,125 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-13 02:13:35,687 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2021-03-13 02:13:36,027 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-13 02:13:36,501 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 96 [2021-03-13 02:13:37,249 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-03-13 02:13:37,445 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-03-13 02:13:37,648 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-13 02:13:37,885 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-13 02:13:38,084 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:38,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:38,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 32 [2021-03-13 02:13:38,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959974750] [2021-03-13 02:13:38,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-03-13 02:13:38,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:38,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-03-13 02:13:38,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=948, Unknown=0, NotChecked=0, Total=1122 [2021-03-13 02:13:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:38,086 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:38,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 33 states have (on average 2.0303030303030303) internal successors, (67), 33 states have internal predecessors, (67), 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) [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:13:38,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:39,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:39,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:13:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:13:39,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-03-13 02:13:39,380 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:39,381 INFO L82 PathProgramCache]: Analyzing trace with hash 2075952144, now seen corresponding path program 8 times [2021-03-13 02:13:39,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:39,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160229722] [2021-03-13 02:13:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:39,948 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-03-13 02:13:40,073 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 31 [2021-03-13 02:13:40,218 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 28 [2021-03-13 02:13:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:41,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160229722] [2021-03-13 02:13:41,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869739517] [2021-03-13 02:13:41,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:41,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:13:41,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:41,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-13 02:13:41,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:42,630 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2021-03-13 02:13:42,827 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-13 02:13:43,238 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-03-13 02:13:43,779 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 115 [2021-03-13 02:13:44,290 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2021-03-13 02:13:44,816 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 110 [2021-03-13 02:13:45,195 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-03-13 02:13:45,740 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 121 [2021-03-13 02:13:46,024 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-03-13 02:13:46,338 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-03-13 02:13:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:46,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:46,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 40 [2021-03-13 02:13:46,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833525038] [2021-03-13 02:13:46,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-03-13 02:13:46,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:46,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-03-13 02:13:46,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1528, Unknown=0, NotChecked=0, Total=1722 [2021-03-13 02:13:46,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:46,377 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:46,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 41 states have (on average 2.097560975609756) internal successors, (86), 41 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:13:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:13:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:13:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:13:47,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:47,148 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:13:47,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:13:47,149 INFO L82 PathProgramCache]: Analyzing trace with hash -48992120, now seen corresponding path program 9 times [2021-03-13 02:13:47,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:13:47,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069666978] [2021-03-13 02:13:47,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:13:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:13:47,939 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 32 [2021-03-13 02:13:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-03-13 02:13:48,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069666978] [2021-03-13 02:13:48,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752159092] [2021-03-13 02:13:48,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:13:48,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-03-13 02:13:48,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:13:48,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 38 conjunts are in the unsatisfiable core [2021-03-13 02:13:48,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:13:49,385 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-03-13 02:13:49,637 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2021-03-13 02:13:49,985 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-03-13 02:13:50,256 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 95 [2021-03-13 02:13:50,553 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 96 [2021-03-13 02:13:50,936 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-03-13 02:13:51,886 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2021-03-13 02:13:53,371 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 231 DAG size of output: 209 [2021-03-13 02:13:54,308 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 198 [2021-03-13 02:13:55,617 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 284 DAG size of output: 196 [2021-03-13 02:13:56,800 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 268 DAG size of output: 192 [2021-03-13 02:13:58,208 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 234 DAG size of output: 195 [2021-03-13 02:13:58,671 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-13 02:13:59,232 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-03-13 02:13:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:13:59,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:13:59,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23] total 38 [2021-03-13 02:13:59,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115559534] [2021-03-13 02:13:59,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-03-13 02:13:59,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:13:59,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-03-13 02:13:59,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1279, Unknown=0, NotChecked=0, Total=1560 [2021-03-13 02:13:59,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:13:59,299 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:13:59,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 39 states have (on average 2.1538461538461537) internal successors, (84), 39 states have internal predecessors, (84), 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) [2021-03-13 02:13:59,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:59,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:59,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:13:59,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:13:59,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:13:59,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:13:59,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:13:59,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:13:59,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:13:59,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:00,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:14:00,573 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:14:00,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:14:00,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1527854584, now seen corresponding path program 10 times [2021-03-13 02:14:00,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:14:00,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140613935] [2021-03-13 02:14:00,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:14:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:14:01,487 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2021-03-13 02:14:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-03-13 02:14:02,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140613935] [2021-03-13 02:14:02,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974641309] [2021-03-13 02:14:02,068 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:14:02,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-13 02:14:02,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:14:02,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 39 conjunts are in the unsatisfiable core [2021-03-13 02:14:02,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:14:02,725 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-13 02:14:03,801 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2021-03-13 02:14:04,096 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-03-13 02:14:04,678 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 144 [2021-03-13 02:14:05,436 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 172 [2021-03-13 02:14:05,915 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-03-13 02:14:06,756 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 172 [2021-03-13 02:14:07,546 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 170 [2021-03-13 02:14:08,358 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 168 [2021-03-13 02:14:09,141 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 166 [2021-03-13 02:14:09,570 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-13 02:14:09,972 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-13 02:14:10,397 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-03-13 02:14:10,872 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-03-13 02:14:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:14:10,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:14:10,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 27] total 43 [2021-03-13 02:14:10,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116481149] [2021-03-13 02:14:10,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-03-13 02:14:10,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:14:10,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-03-13 02:14:10,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1717, Unknown=0, NotChecked=0, Total=1980 [2021-03-13 02:14:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:10,952 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:14:10,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 44 states have (on average 2.0454545454545454) internal successors, (90), 44 states have internal predecessors, (90), 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) [2021-03-13 02:14:10,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:10,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:10,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:10,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:10,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:10,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:10,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:10,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:10,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:10,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:10,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:12,041 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2021-03-13 02:14:12,268 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-03-13 02:14:12,492 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-13 02:14:12,781 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-13 02:14:13,035 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:14:14,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable305 [2021-03-13 02:14:14,191 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:14:14,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:14:14,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1954863992, now seen corresponding path program 11 times [2021-03-13 02:14:14,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:14:14,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921768876] [2021-03-13 02:14:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:14:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:14:15,138 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 30 [2021-03-13 02:14:15,319 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 31 [2021-03-13 02:14:15,482 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2021-03-13 02:14:15,639 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 31 [2021-03-13 02:14:15,841 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 32 [2021-03-13 02:14:16,012 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 31 [2021-03-13 02:14:17,045 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 42 [2021-03-13 02:14:17,234 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2021-03-13 02:14:17,439 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 45 [2021-03-13 02:14:17,642 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2021-03-13 02:14:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 372 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:14:18,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921768876] [2021-03-13 02:14:18,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546227385] [2021-03-13 02:14:18,222 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:14:18,295 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2021-03-13 02:14:18,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:14:18,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 42 conjunts are in the unsatisfiable core [2021-03-13 02:14:18,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:14:19,332 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-03-13 02:14:19,855 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 90 [2021-03-13 02:14:20,471 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2021-03-13 02:14:21,004 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-03-13 02:14:21,859 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2021-03-13 02:14:23,167 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 252 DAG size of output: 209 [2021-03-13 02:14:24,272 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2021-03-13 02:14:26,007 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 272 DAG size of output: 194 [2021-03-13 02:14:27,343 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 212 DAG size of output: 183 [2021-03-13 02:14:28,833 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 217 DAG size of output: 172 [2021-03-13 02:14:29,513 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-13 02:14:30,203 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-03-13 02:14:30,817 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-03-13 02:14:31,482 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-03-13 02:14:32,255 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2021-03-13 02:14:33,005 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-03-13 02:14:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:14:33,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:14:33,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29] total 56 [2021-03-13 02:14:33,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151891321] [2021-03-13 02:14:33,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-03-13 02:14:33,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:14:33,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-03-13 02:14:33,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=2959, Unknown=0, NotChecked=0, Total=3306 [2021-03-13 02:14:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:33,130 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:14:33,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 57 states have (on average 2.017543859649123) internal successors, (115), 57 states have internal predecessors, (115), 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) [2021-03-13 02:14:33,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:33,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:14:33,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:14:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:14:34,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:14:34,902 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:14:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:14:34,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1514106590, now seen corresponding path program 12 times [2021-03-13 02:14:34,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:14:34,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410911364] [2021-03-13 02:14:34,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:14:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:14:35,617 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2021-03-13 02:14:35,940 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2021-03-13 02:14:36,238 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 31 [2021-03-13 02:14:37,862 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 31 [2021-03-13 02:14:38,042 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 19 [2021-03-13 02:14:38,234 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 19 [2021-03-13 02:14:38,439 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 30 [2021-03-13 02:14:38,664 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 36 [2021-03-13 02:14:38,850 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2021-03-13 02:14:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 02:14:39,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410911364] [2021-03-13 02:14:39,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606681512] [2021-03-13 02:14:39,263 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:14:39,337 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2021-03-13 02:14:39,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:14:39,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-13 02:14:39,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:14:40,050 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2021-03-13 02:14:40,888 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2021-03-13 02:14:41,737 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-03-13 02:14:42,227 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 116 [2021-03-13 02:14:42,969 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 122 [2021-03-13 02:14:43,397 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 120 [2021-03-13 02:14:43,827 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-03-13 02:14:44,538 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 153 [2021-03-13 02:14:45,376 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-03-13 02:14:46,698 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 218 [2021-03-13 02:14:48,038 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 245 DAG size of output: 222 [2021-03-13 02:14:49,505 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 266 DAG size of output: 230 [2021-03-13 02:14:51,104 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 296 DAG size of output: 237 [2021-03-13 02:14:53,312 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 259 DAG size of output: 210 [2021-03-13 02:14:54,218 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-03-13 02:14:55,019 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-03-13 02:14:55,896 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-13 02:14:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 0 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:14:55,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:14:55,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 60 [2021-03-13 02:14:55,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188434666] [2021-03-13 02:14:55,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-03-13 02:14:55,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:14:55,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-03-13 02:14:55,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=3458, Unknown=0, NotChecked=0, Total=3782 [2021-03-13 02:14:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:55,995 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:14:55,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 61 states have (on average 2.081967213114754) internal successors, (127), 61 states have internal predecessors, (127), 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) [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:55,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:55,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:55,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:55,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:55,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:14:55,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:14:55,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:14:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:14:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:14:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:14:58,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable482 [2021-03-13 02:14:58,305 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:14:58,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:14:58,305 INFO L82 PathProgramCache]: Analyzing trace with hash -443737250, now seen corresponding path program 13 times [2021-03-13 02:14:58,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:14:58,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502919854] [2021-03-13 02:14:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:14:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:14:59,608 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2021-03-13 02:14:59,921 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 30 [2021-03-13 02:15:00,099 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 30 [2021-03-13 02:15:00,423 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 33 [2021-03-13 02:15:01,934 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 21 [2021-03-13 02:15:02,327 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 34 [2021-03-13 02:15:02,528 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2021-03-13 02:15:02,722 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2021-03-13 02:15:02,921 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2021-03-13 02:15:03,199 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2021-03-13 02:15:03,408 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2021-03-13 02:15:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 3 proven. 625 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-03-13 02:15:03,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502919854] [2021-03-13 02:15:03,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220616468] [2021-03-13 02:15:03,688 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:15:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:15:03,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 49 conjunts are in the unsatisfiable core [2021-03-13 02:15:03,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:15:05,543 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 96 [2021-03-13 02:15:06,001 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-03-13 02:15:06,249 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-03-13 02:15:06,579 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-03-13 02:15:07,133 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 142 [2021-03-13 02:15:07,413 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-03-13 02:15:07,895 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 124 [2021-03-13 02:15:08,343 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 111 [2021-03-13 02:15:08,940 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-03-13 02:15:10,294 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 231 DAG size of output: 228 [2021-03-13 02:15:13,776 WARN L205 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 319 DAG size of output: 280 [2021-03-13 02:15:15,903 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2021-03-13 02:15:18,914 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 360 DAG size of output: 260 [2021-03-13 02:15:20,866 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 323 DAG size of output: 255 [2021-03-13 02:15:23,736 WARN L205 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 316 DAG size of output: 232 [2021-03-13 02:15:25,211 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 244 DAG size of output: 217 [2021-03-13 02:15:26,097 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-03-13 02:15:27,910 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 279 DAG size of output: 257 [2021-03-13 02:15:28,906 WARN L205 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-13 02:15:29,877 WARN L205 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-03-13 02:15:30,873 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-03-13 02:15:32,027 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-13 02:15:33,502 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 231 [2021-03-13 02:15:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:15:33,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:15:33,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 36] total 64 [2021-03-13 02:15:33,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951442406] [2021-03-13 02:15:33,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-03-13 02:15:33,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:15:33,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-03-13 02:15:33,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=3910, Unknown=0, NotChecked=0, Total=4290 [2021-03-13 02:15:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:15:33,743 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:15:33,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 65 states have (on average 2.0615384615384613) internal successors, (134), 65 states have internal predecessors, (134), 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) [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:15:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:15:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:15:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:15:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:15:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:15:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:15:37,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:15:37,081 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:15:37,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:15:37,082 INFO L82 PathProgramCache]: Analyzing trace with hash -10661654, now seen corresponding path program 14 times [2021-03-13 02:15:37,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:15:37,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21149102] [2021-03-13 02:15:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:15:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:15:39,138 WARN L205 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 59 [2021-03-13 02:15:39,755 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 70 [2021-03-13 02:15:39,881 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 32 [2021-03-13 02:15:40,710 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 83 [2021-03-13 02:15:40,879 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 33 [2021-03-13 02:15:42,669 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 158 DAG size of output: 73 [2021-03-13 02:15:42,809 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 32 [2021-03-13 02:15:47,752 WARN L205 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 167 DAG size of output: 71 [2021-03-13 02:15:47,913 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2021-03-13 02:15:49,422 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 179 DAG size of output: 74 [2021-03-13 02:15:54,185 WARN L205 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 184 DAG size of output: 100 [2021-03-13 02:15:54,374 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 31 [2021-03-13 02:15:55,816 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 203 DAG size of output: 62 [2021-03-13 02:15:57,076 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 185 DAG size of output: 85 [2021-03-13 02:15:58,265 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 200 DAG size of output: 103 [2021-03-13 02:15:58,414 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 31 [2021-03-13 02:15:59,326 WARN L205 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 114 [2021-03-13 02:15:59,512 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 33 [2021-03-13 02:16:01,492 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 240 DAG size of output: 101 [2021-03-13 02:16:07,985 WARN L205 SmtUtils]: Spent 6.35 s on a formula simplification. DAG size of input: 249 DAG size of output: 125 [2021-03-13 02:16:08,270 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 33 [2021-03-13 02:16:21,742 WARN L205 SmtUtils]: Spent 13.47 s on a formula simplification. DAG size of input: 235 DAG size of output: 213 [2021-03-13 02:16:22,229 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 32 [2021-03-13 02:16:26,316 WARN L205 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 203 DAG size of output: 104 [2021-03-13 02:16:26,490 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 31 [2021-03-13 02:16:33,259 WARN L205 SmtUtils]: Spent 6.77 s on a formula simplification. DAG size of input: 216 DAG size of output: 102 [2021-03-13 02:16:33,486 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 31 [2021-03-13 02:16:33,820 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 90 [2021-03-13 02:16:34,028 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 27 [2021-03-13 02:16:34,558 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 86 [2021-03-13 02:16:34,758 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 27 [2021-03-13 02:16:35,127 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2021-03-13 02:16:35,293 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 24 [2021-03-13 02:16:35,517 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 36 [2021-03-13 02:16:36,861 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 186 DAG size of output: 101 [2021-03-13 02:16:37,183 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 48 [2021-03-13 02:16:38,519 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 176 DAG size of output: 64 [2021-03-13 02:16:38,764 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 26 [2021-03-13 02:16:38,999 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 88 [2021-03-13 02:16:39,330 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 37 [2021-03-13 02:16:39,583 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 120 [2021-03-13 02:16:39,876 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 38 [2021-03-13 02:16:40,073 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 87 [2021-03-13 02:16:40,286 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2021-03-13 02:16:40,621 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 88 [2021-03-13 02:16:40,879 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 37 [2021-03-13 02:16:41,071 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2021-03-13 02:16:41,294 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 28 [2021-03-13 02:16:41,457 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2021-03-13 02:16:41,793 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2021-03-13 02:16:42,050 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 35 [2021-03-13 02:16:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 767 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-13 02:16:43,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21149102] [2021-03-13 02:16:43,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095210151] [2021-03-13 02:16:43,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:16:43,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-13 02:16:43,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:16:43,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 54 conjunts are in the unsatisfiable core [2021-03-13 02:16:43,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:16:44,140 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2021-03-13 02:16:45,037 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2021-03-13 02:16:45,560 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-03-13 02:16:46,044 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 101 [2021-03-13 02:16:46,381 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-03-13 02:16:46,933 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2021-03-13 02:16:47,497 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2021-03-13 02:16:48,087 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 143 [2021-03-13 02:16:48,721 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 150 [2021-03-13 02:16:49,087 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-03-13 02:16:49,684 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 130 [2021-03-13 02:16:50,249 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 115 [2021-03-13 02:16:50,716 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-03-13 02:16:51,555 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-13 02:16:53,118 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 237 DAG size of output: 211 [2021-03-13 02:16:54,133 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-03-13 02:16:56,307 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 262 DAG size of output: 209 [2021-03-13 02:16:58,203 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 286 DAG size of output: 209 [2021-03-13 02:17:00,036 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 267 DAG size of output: 221 [2021-03-13 02:17:01,131 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-03-13 02:17:03,038 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 299 DAG size of output: 228 [2021-03-13 02:17:04,636 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 281 [2021-03-13 02:17:07,157 WARN L205 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 367 DAG size of output: 265 [2021-03-13 02:17:08,501 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-13 02:17:09,842 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-13 02:17:12,834 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 387 DAG size of output: 261 [2021-03-13 02:17:15,351 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 303 DAG size of output: 283 [2021-03-13 02:17:16,786 WARN L205 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2021-03-13 02:17:18,245 WARN L205 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-03-13 02:17:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:17:18,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:17:18,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 79 [2021-03-13 02:17:18,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855990711] [2021-03-13 02:17:18,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-03-13 02:17:18,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:17:18,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-03-13 02:17:18,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=6205, Unknown=0, NotChecked=0, Total=6480 [2021-03-13 02:17:18,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:17:18,400 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:17:18,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 81 states, 80 states have (on average 2.0125) internal successors, (161), 80 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:17:18,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:17:18,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:17:20,800 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2021-03-13 02:17:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:17:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:17:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:17:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:17:21,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:17:21,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable789 [2021-03-13 02:17:21,507 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:17:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:17:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash 395785732, now seen corresponding path program 15 times [2021-03-13 02:17:21,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:17:21,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237869054] [2021-03-13 02:17:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:17:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:17:24,906 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 132 DAG size of output: 72 [2021-03-13 02:17:38,746 WARN L205 SmtUtils]: Spent 13.74 s on a formula simplification. DAG size of input: 170 DAG size of output: 86 [2021-03-13 02:17:38,889 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 32 [2021-03-13 02:17:49,962 WARN L205 SmtUtils]: Spent 11.07 s on a formula simplification. DAG size of input: 194 DAG size of output: 105 [2021-03-13 02:17:50,136 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 33 [2021-03-13 02:18:14,560 WARN L205 SmtUtils]: Spent 24.42 s on a formula simplification. DAG size of input: 201 DAG size of output: 116 [2021-03-13 02:18:14,833 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2021-03-13 02:18:25,289 WARN L205 SmtUtils]: Spent 10.45 s on a formula simplification. DAG size of input: 188 DAG size of output: 104 [2021-03-13 02:18:25,448 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2021-03-13 02:18:31,945 WARN L205 SmtUtils]: Spent 6.49 s on a formula simplification. DAG size of input: 194 DAG size of output: 96 [2021-03-13 02:18:32,150 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 32 [2021-03-13 02:18:36,457 WARN L205 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 223 DAG size of output: 90 [2021-03-13 02:18:36,622 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 37 [2021-03-13 02:18:43,067 WARN L205 SmtUtils]: Spent 6.44 s on a formula simplification. DAG size of input: 235 DAG size of output: 104 [2021-03-13 02:18:43,245 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 32 [2021-03-13 02:18:58,608 WARN L205 SmtUtils]: Spent 15.36 s on a formula simplification. DAG size of input: 201 DAG size of output: 105 [2021-03-13 02:18:58,833 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 35 [2021-03-13 02:19:02,801 WARN L205 SmtUtils]: Spent 3.97 s on a formula simplification. DAG size of input: 208 DAG size of output: 112 [2021-03-13 02:19:03,001 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 32 [2021-03-13 02:19:07,749 WARN L205 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 242 DAG size of output: 97 [2021-03-13 02:19:07,985 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 35 [2021-03-13 02:19:09,876 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 243 DAG size of output: 108 [2021-03-13 02:19:10,092 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 33 [2021-03-13 02:19:21,071 WARN L205 SmtUtils]: Spent 10.98 s on a formula simplification. DAG size of input: 239 DAG size of output: 109 [2021-03-13 02:19:21,281 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 33 [2021-03-13 02:19:33,365 WARN L205 SmtUtils]: Spent 12.08 s on a formula simplification. DAG size of input: 270 DAG size of output: 115 [2021-03-13 02:19:33,622 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 32 [2021-03-13 02:19:44,076 WARN L205 SmtUtils]: Spent 10.45 s on a formula simplification. DAG size of input: 270 DAG size of output: 140 [2021-03-13 02:19:44,389 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 31 [2021-03-13 02:19:55,422 WARN L205 SmtUtils]: Spent 11.03 s on a formula simplification. DAG size of input: 279 DAG size of output: 128 [2021-03-13 02:19:55,703 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 33 [2021-03-13 02:19:59,508 WARN L205 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 267 DAG size of output: 165 [2021-03-13 02:19:59,953 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 31 [2021-03-13 02:20:01,623 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 248 DAG size of output: 184 [2021-03-13 02:20:02,048 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 31 [2021-03-13 02:20:02,970 WARN L205 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 151 [2021-03-13 02:20:03,300 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 29 [2021-03-13 02:20:04,139 WARN L205 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 173 [2021-03-13 02:20:04,540 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 29 [2021-03-13 02:20:05,249 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 70 [2021-03-13 02:20:05,472 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 26 [2021-03-13 02:20:09,000 WARN L205 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 178 DAG size of output: 68 [2021-03-13 02:20:09,235 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 23 [2021-03-13 02:20:20,848 WARN L205 SmtUtils]: Spent 11.61 s on a formula simplification. DAG size of input: 282 DAG size of output: 112 [2021-03-13 02:20:21,109 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 44 [2021-03-13 02:20:24,736 WARN L205 SmtUtils]: Spent 3.62 s on a formula simplification. DAG size of input: 230 DAG size of output: 104 [2021-03-13 02:20:25,043 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 38 [2021-03-13 02:20:55,049 WARN L205 SmtUtils]: Spent 30.00 s on a formula simplification. DAG size of input: 279 DAG size of output: 204 [2021-03-13 02:21:30,840 WARN L205 SmtUtils]: Spent 35.62 s on a formula simplification. DAG size of input: 304 DAG size of output: 290 [2021-03-13 02:21:31,113 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 229 [2021-03-13 02:21:32,140 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 41 [2021-03-13 02:22:01,855 WARN L205 SmtUtils]: Spent 29.71 s on a formula simplification. DAG size of input: 299 DAG size of output: 365 [2021-03-13 02:22:02,159 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 235 [2021-03-13 02:22:03,364 WARN L205 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 364 DAG size of output: 53 [2021-03-13 02:22:29,427 WARN L205 SmtUtils]: Spent 26.06 s on a formula simplification. DAG size of input: 273 DAG size of output: 210 [2021-03-13 02:22:29,540 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 182 [2021-03-13 02:22:30,496 WARN L205 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 52 [2021-03-13 02:22:50,408 WARN L205 SmtUtils]: Spent 19.91 s on a formula simplification. DAG size of input: 237 DAG size of output: 185 [2021-03-13 02:22:51,195 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 48 [2021-03-13 02:23:02,721 WARN L205 SmtUtils]: Spent 11.52 s on a formula simplification. DAG size of input: 218 DAG size of output: 179 [2021-03-13 02:23:03,331 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 43 [2021-03-13 02:23:08,064 WARN L205 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 159 DAG size of output: 95 [2021-03-13 02:23:08,380 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 35 [2021-03-13 02:23:11,482 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 158 DAG size of output: 69 [2021-03-13 02:23:11,744 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2021-03-13 02:23:15,038 WARN L205 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 146 DAG size of output: 60 [2021-03-13 02:23:15,230 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2021-03-13 02:23:16,979 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 118 DAG size of output: 41 [2021-03-13 02:23:18,838 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 118 DAG size of output: 40 [2021-03-13 02:23:21,938 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 124 DAG size of output: 41 [2021-03-13 02:23:23,842 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 107 DAG size of output: 39 [2021-03-13 02:23:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 894 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:23:24,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237869054] [2021-03-13 02:23:24,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237126954] [2021-03-13 02:23:24,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:23:24,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2021-03-13 02:23:24,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:23:24,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 58 conjunts are in the unsatisfiable core [2021-03-13 02:23:24,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:23:26,435 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2021-03-13 02:23:26,881 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-13 02:23:27,176 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-03-13 02:23:27,516 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-13 02:23:28,024 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2021-03-13 02:23:28,579 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2021-03-13 02:23:28,998 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-03-13 02:23:29,445 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-03-13 02:23:30,198 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2021-03-13 02:23:31,032 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 136 [2021-03-13 02:23:31,554 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-03-13 02:23:32,047 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-03-13 02:23:32,516 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-03-13 02:23:33,159 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 128 [2021-03-13 02:23:33,652 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2021-03-13 02:23:34,323 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-03-13 02:23:34,936 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-03-13 02:23:35,890 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-03-13 02:23:37,849 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 245 DAG size of output: 230 [2021-03-13 02:23:38,975 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-03-13 02:23:40,625 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2021-03-13 02:23:42,310 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 257 [2021-03-13 02:23:45,340 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 362 DAG size of output: 269 [2021-03-13 02:23:48,414 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 322 DAG size of output: 277 [2021-03-13 02:23:51,881 WARN L205 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 310 DAG size of output: 289 [2021-03-13 02:23:55,835 WARN L205 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 403 DAG size of output: 322 [2021-03-13 02:23:59,742 WARN L205 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 413 DAG size of output: 308 [2021-03-13 02:24:01,813 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 308 [2021-03-13 02:24:03,788 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 308 [2021-03-13 02:24:07,703 WARN L205 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 439 DAG size of output: 308 [2021-03-13 02:24:11,773 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 344 DAG size of output: 334 [2021-03-13 02:24:14,114 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 332 [2021-03-13 02:24:16,285 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 266 [2021-03-13 02:24:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 894 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:24:16,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:24:16,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 85 [2021-03-13 02:24:16,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148594713] [2021-03-13 02:24:16,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-03-13 02:24:16,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:24:16,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-03-13 02:24:16,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=7130, Unknown=0, NotChecked=0, Total=7482 [2021-03-13 02:24:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:24:16,480 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:24:16,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 87 states, 86 states have (on average 2.0232558139534884) internal successors, (174), 86 states have internal predecessors, (174), 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) [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:24:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:24:16,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:24:20,029 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 34 [2021-03-13 02:24:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:24:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:24:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-13 02:24:20,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable941,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:24:20,531 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:24:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:24:20,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1456609182, now seen corresponding path program 16 times [2021-03-13 02:24:20,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:24:20,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246234608] [2021-03-13 02:24:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:24:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 02:24:22,713 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-13 02:24:23,084 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 44 [2021-03-13 02:24:23,270 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 45 [2021-03-13 02:24:23,460 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-03-13 02:24:23,629 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-03-13 02:24:23,798 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-03-13 02:24:23,974 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-03-13 02:24:24,157 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 110 [2021-03-13 02:24:24,331 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 49 [2021-03-13 02:24:24,513 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 90 [2021-03-13 02:24:24,704 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 88 [2021-03-13 02:24:24,895 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 88 [2021-03-13 02:24:25,091 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-03-13 02:24:25,223 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 110 [2021-03-13 02:24:25,350 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 107 [2021-03-13 02:24:25,546 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 17 [2021-03-13 02:24:25,957 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 97 [2021-03-13 02:24:26,171 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 25 [2021-03-13 02:24:26,342 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 121 [2021-03-13 02:24:26,762 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 208 [2021-03-13 02:24:28,056 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 342 DAG size of output: 292 [2021-03-13 02:24:29,044 WARN L205 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 36 [2021-03-13 02:24:30,017 WARN L205 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 248 [2021-03-13 02:24:30,689 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 28 [2021-03-13 02:24:31,300 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 252 [2021-03-13 02:24:32,274 WARN L205 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 39 [2021-03-13 02:24:32,591 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 223 [2021-03-13 02:24:33,347 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 25 [2021-03-13 02:24:33,761 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 175 [2021-03-13 02:24:34,296 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 29 [2021-03-13 02:24:34,680 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 182 [2021-03-13 02:24:35,188 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 26 [2021-03-13 02:24:35,469 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 193 [2021-03-13 02:24:36,129 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 29 [2021-03-13 02:24:36,574 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 29 [2021-03-13 02:24:36,782 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 20 [2021-03-13 02:24:36,964 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 19 [2021-03-13 02:24:37,205 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 21 [2021-03-13 02:24:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 8 proven. 580 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2021-03-13 02:24:37,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246234608] [2021-03-13 02:24:37,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787028161] [2021-03-13 02:24:37,572 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-13 02:24:37,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-13 02:24:37,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-13 02:24:37,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 61 conjunts are in the unsatisfiable core [2021-03-13 02:24:37,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-13 02:24:38,209 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-03-13 02:24:38,412 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-03-13 02:24:38,944 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-13 02:24:39,319 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-03-13 02:24:39,568 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-13 02:24:40,021 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2021-03-13 02:24:40,492 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2021-03-13 02:24:40,990 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2021-03-13 02:24:41,308 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-03-13 02:24:41,846 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-03-13 02:24:42,281 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-03-13 02:24:43,077 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 131 [2021-03-13 02:24:43,561 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-03-13 02:24:44,067 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-03-13 02:24:45,132 WARN L205 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 153 [2021-03-13 02:24:45,622 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-03-13 02:24:46,158 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-03-13 02:24:46,789 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-03-13 02:24:47,290 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-03-13 02:24:48,308 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 184 [2021-03-13 02:24:49,299 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 181 [2021-03-13 02:24:50,327 WARN L205 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-03-13 02:24:52,171 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-03-13 02:24:54,305 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 296 DAG size of output: 257 [2021-03-13 02:24:56,532 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 312 [2021-03-13 02:24:58,521 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 311 [2021-03-13 02:25:01,935 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 425 DAG size of output: 312 [2021-03-13 02:25:05,576 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 376 DAG size of output: 314 [2021-03-13 02:25:10,032 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 342 DAG size of output: 317 [2021-03-13 02:25:14,546 WARN L205 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 420 DAG size of output: 333 [2021-03-13 02:25:19,436 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 446 DAG size of output: 324 [2021-03-13 02:25:24,514 WARN L205 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 477 DAG size of output: 355 [2021-03-13 02:25:27,708 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 362 [2021-03-13 02:25:30,785 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 363 [2021-03-13 02:25:33,776 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 363 [2021-03-13 02:25:41,334 WARN L205 SmtUtils]: Spent 6.62 s on a formula simplification. DAG size of input: 522 DAG size of output: 354 [2021-03-13 02:25:45,976 WARN L205 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 443 DAG size of output: 308 [2021-03-13 02:25:48,173 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 297 [2021-03-13 02:25:50,500 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 295 [2021-03-13 02:25:52,925 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 290 [2021-03-13 02:25:55,983 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification that was a NOOP. DAG size: 283 [2021-03-13 02:25:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 0 proven. 1077 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 02:25:56,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-13 02:25:56,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 47] total 69 [2021-03-13 02:25:56,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496302299] [2021-03-13 02:25:56,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states [2021-03-13 02:25:56,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 02:25:56,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-03-13 02:25:56,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=4567, Unknown=0, NotChecked=0, Total=4970 [2021-03-13 02:25:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:25:56,361 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 02:25:56,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 71 states, 70 states have (on average 1.9857142857142858) internal successors, (139), 70 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) [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-13 02:25:56,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 02:26:02,229 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2021-03-13 02:26:03,249 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-03-13 02:26:04,550 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-03-13 02:26:04,849 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2021-03-13 02:26:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-13 02:26:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-13 02:26:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-03-13 02:26:05,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1117 [2021-03-13 02:26:05,161 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 02:26:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 02:26:05,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1336573982, now seen corresponding path program 17 times [2021-03-13 02:26:05,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 02:26:05,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125628690] [2021-03-13 02:26:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 02:26:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown