java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/reducercommutativity/rangesum20_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:22:39,185 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:22:39,187 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:22:39,199 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:22:39,199 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:22:39,200 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:22:39,202 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:22:39,203 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:22:39,205 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:22:39,206 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:22:39,207 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:22:39,207 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:22:39,208 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:22:39,209 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:22:39,210 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:22:39,211 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:22:39,212 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:22:39,214 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:22:39,216 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:22:39,218 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:22:39,219 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:22:39,220 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:22:39,223 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:22:39,223 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:22:39,223 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:22:39,224 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:22:39,225 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:22:39,226 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:22:39,226 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:22:39,227 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:22:39,228 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:22:39,229 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:22:39,230 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:22:39,230 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:22:39,231 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:22:39,231 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:22:39,231 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:22:39,232 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:22:39,233 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:22:39,233 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:22:39,259 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:22:39,259 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:22:39,262 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:22:39,263 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:22:39,263 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:22:39,264 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:22:39,264 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:22:39,264 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:22:39,264 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:22:39,264 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:22:39,265 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:22:39,265 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:22:39,265 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:22:39,265 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:22:39,266 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:22:39,266 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:22:39,266 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:22:39,266 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:22:39,266 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:22:39,267 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:22:39,267 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:22:39,267 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:22:39,267 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:22:39,267 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:22:39,268 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:22:39,269 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:22:39,269 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:22:39,269 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:22:39,270 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:22:39,307 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:22:39,318 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:22:39,322 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:22:39,323 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:22:39,324 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:22:39,325 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/rangesum20_false-unreach-call.i [2019-05-23 11:22:39,377 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28602a81/1281f14120f643be87f525eec2961c0e/FLAGe560b48da [2019-05-23 11:22:39,774 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:22:39,774 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/rangesum20_false-unreach-call.i [2019-05-23 11:22:39,780 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28602a81/1281f14120f643be87f525eec2961c0e/FLAGe560b48da [2019-05-23 11:22:40,152 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28602a81/1281f14120f643be87f525eec2961c0e [2019-05-23 11:22:40,162 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:22:40,164 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:22:40,165 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:40,165 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:22:40,168 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:22:40,169 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,172 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbe1db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40, skipping insertion in model container [2019-05-23 11:22:40,172 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,180 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:22:40,199 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:22:40,433 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:40,451 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:22:40,487 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:40,505 INFO L146 ILogger]: Completed translation [2019-05-23 11:22:40,506 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40 WrapperNode [2019-05-23 11:22:40,506 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:40,507 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:40,508 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:22:40,508 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:22:40,517 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,527 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,559 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:40,560 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:22:40,560 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:22:40,560 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:22:40,568 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,569 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,572 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,572 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,580 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,587 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,589 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (1/1) ... [2019-05-23 11:22:40,595 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:22:40,596 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:22:40,596 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:22:40,596 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:22:40,597 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (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:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:22:40,744 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:22:40,744 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:22:40,744 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:22:40,745 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:22:40,745 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:22:40,745 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:22:41,464 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:22:41,464 INFO L146 ILogger]: Removed 17 assume(true) statements. [2019-05-23 11:22:41,466 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:41 BoogieIcfgContainer [2019-05-23 11:22:41,466 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:22:41,467 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:22:41,467 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:22:41,470 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:22:41,470 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:22:40" (1/3) ... [2019-05-23 11:22:41,471 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ddbbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:41, skipping insertion in model container [2019-05-23 11:22:41,472 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:40" (2/3) ... [2019-05-23 11:22:41,473 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ddbbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:41, skipping insertion in model container [2019-05-23 11:22:41,474 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:41" (3/3) ... [2019-05-23 11:22:41,475 INFO L146 ILogger]: Analyzing ICFG rangesum20_false-unreach-call.i [2019-05-23 11:22:41,486 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:22:41,494 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:22:41,512 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:22:41,545 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:22:41,545 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:22:41,546 INFO L146 ILogger]: Hoare is true [2019-05-23 11:22:41,546 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:22:41,546 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:22:41,546 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:22:41,547 INFO L146 ILogger]: Difference is false [2019-05-23 11:22:41,547 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:22:41,547 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:22:41,564 INFO L146 ILogger]: Start isEmpty. Operand 124 states. [2019-05-23 11:22:41,574 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 11:22:41,574 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:41,575 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:41,577 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:41,582 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:41,582 INFO L146 ILogger]: Analyzing trace with hash -924562874, now seen corresponding path program 1 times [2019-05-23 11:22:41,584 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:41,585 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:41,624 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:41,624 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:41,625 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:41,669 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:41,785 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:41,788 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:41,788 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:41,792 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:41,807 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:41,808 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:41,812 INFO L146 ILogger]: Start difference. First operand 124 states. Second operand 3 states. [2019-05-23 11:22:41,977 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:41,978 INFO L146 ILogger]: Finished difference Result 237 states and 269 transitions. [2019-05-23 11:22:41,978 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:41,980 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 78 [2019-05-23 11:22:41,980 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:41,992 INFO L146 ILogger]: With dead ends: 237 [2019-05-23 11:22:41,993 INFO L146 ILogger]: Without dead ends: 124 [2019-05-23 11:22:41,996 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:42,012 INFO L146 ILogger]: Start minimizeSevpa. Operand 124 states. [2019-05-23 11:22:42,036 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 124 to 119. [2019-05-23 11:22:42,037 INFO L146 ILogger]: Start removeUnreachable. Operand 119 states. [2019-05-23 11:22:42,040 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2019-05-23 11:22:42,042 INFO L146 ILogger]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 78 [2019-05-23 11:22:42,042 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:42,043 INFO L146 ILogger]: Abstraction has 119 states and 129 transitions. [2019-05-23 11:22:42,043 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:42,043 INFO L146 ILogger]: Start isEmpty. Operand 119 states and 129 transitions. [2019-05-23 11:22:42,046 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 86 [2019-05-23 11:22:42,047 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:42,047 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:42,047 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:42,048 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:42,048 INFO L146 ILogger]: Analyzing trace with hash -955470100, now seen corresponding path program 1 times [2019-05-23 11:22:42,048 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:42,048 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:42,049 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,050 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:42,050 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,069 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:42,211 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:22:42,212 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:42,212 INFO L146 ILogger]: Switched to mode Z3_FP 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:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:42,232 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:42,304 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:42,308 INFO L146 ILogger]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:22:42,318 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:42,383 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:22:42,403 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:42,403 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:42,409 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:42,409 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:42,410 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:42,410 INFO L146 ILogger]: Start difference. First operand 119 states and 129 transitions. Second operand 6 states. [2019-05-23 11:22:42,798 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:42,798 INFO L146 ILogger]: Finished difference Result 302 states and 331 transitions. [2019-05-23 11:22:42,799 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:42,799 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 85 [2019-05-23 11:22:42,800 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:42,802 INFO L146 ILogger]: With dead ends: 302 [2019-05-23 11:22:42,802 INFO L146 ILogger]: Without dead ends: 201 [2019-05-23 11:22:42,804 INFO L146 ILogger]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:42,807 INFO L146 ILogger]: Start minimizeSevpa. Operand 201 states. [2019-05-23 11:22:42,819 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 201 to 144. [2019-05-23 11:22:42,819 INFO L146 ILogger]: Start removeUnreachable. Operand 144 states. [2019-05-23 11:22:42,822 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2019-05-23 11:22:42,822 INFO L146 ILogger]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 85 [2019-05-23 11:22:42,822 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:42,823 INFO L146 ILogger]: Abstraction has 144 states and 160 transitions. [2019-05-23 11:22:42,823 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:42,823 INFO L146 ILogger]: Start isEmpty. Operand 144 states and 160 transitions. [2019-05-23 11:22:42,825 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 93 [2019-05-23 11:22:42,825 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:42,825 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:42,825 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:42,826 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:42,826 INFO L146 ILogger]: Analyzing trace with hash -1153429310, now seen corresponding path program 1 times [2019-05-23 11:22:42,826 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:42,826 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:42,827 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,827 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:42,828 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:42,853 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:42,908 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-05-23 11:22:42,909 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:42,909 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:42,909 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:42,910 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:42,910 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:42,910 INFO L146 ILogger]: Start difference. First operand 144 states and 160 transitions. Second operand 3 states. [2019-05-23 11:22:43,061 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:43,062 INFO L146 ILogger]: Finished difference Result 257 states and 292 transitions. [2019-05-23 11:22:43,064 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:43,064 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 92 [2019-05-23 11:22:43,065 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:43,067 INFO L146 ILogger]: With dead ends: 257 [2019-05-23 11:22:43,071 INFO L146 ILogger]: Without dead ends: 156 [2019-05-23 11:22:43,072 INFO L146 ILogger]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:43,073 INFO L146 ILogger]: Start minimizeSevpa. Operand 156 states. [2019-05-23 11:22:43,091 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 156 to 150. [2019-05-23 11:22:43,091 INFO L146 ILogger]: Start removeUnreachable. Operand 150 states. [2019-05-23 11:22:43,092 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 150 states to 150 states and 166 transitions. [2019-05-23 11:22:43,092 INFO L146 ILogger]: Start accepts. Automaton has 150 states and 166 transitions. Word has length 92 [2019-05-23 11:22:43,093 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:43,093 INFO L146 ILogger]: Abstraction has 150 states and 166 transitions. [2019-05-23 11:22:43,093 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:43,093 INFO L146 ILogger]: Start isEmpty. Operand 150 states and 166 transitions. [2019-05-23 11:22:43,097 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 108 [2019-05-23 11:22:43,097 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:43,098 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:43,098 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:43,098 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:43,099 INFO L146 ILogger]: Analyzing trace with hash -1024653488, now seen corresponding path program 1 times [2019-05-23 11:22:43,100 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:43,100 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:43,101 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:43,101 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:43,102 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:43,135 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:43,349 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-05-23 11:22:43,350 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:43,350 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:43,368 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:43,421 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:43,422 INFO L146 ILogger]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 11:22:43,429 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:43,564 INFO L146 ILogger]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-05-23 11:22:43,582 INFO L146 ILogger]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:43,583 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-05-23 11:22:43,583 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:43,583 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:43,584 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:43,584 INFO L146 ILogger]: Start difference. First operand 150 states and 166 transitions. Second operand 6 states. [2019-05-23 11:22:44,089 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:44,090 INFO L146 ILogger]: Finished difference Result 282 states and 318 transitions. [2019-05-23 11:22:44,090 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:44,090 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 107 [2019-05-23 11:22:44,091 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:44,093 INFO L146 ILogger]: With dead ends: 282 [2019-05-23 11:22:44,093 INFO L146 ILogger]: Without dead ends: 177 [2019-05-23 11:22:44,094 INFO L146 ILogger]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:44,095 INFO L146 ILogger]: Start minimizeSevpa. Operand 177 states. [2019-05-23 11:22:44,104 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 177 to 166. [2019-05-23 11:22:44,104 INFO L146 ILogger]: Start removeUnreachable. Operand 166 states. [2019-05-23 11:22:44,105 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 166 states to 166 states and 182 transitions. [2019-05-23 11:22:44,105 INFO L146 ILogger]: Start accepts. Automaton has 166 states and 182 transitions. Word has length 107 [2019-05-23 11:22:44,106 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:44,106 INFO L146 ILogger]: Abstraction has 166 states and 182 transitions. [2019-05-23 11:22:44,106 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:44,106 INFO L146 ILogger]: Start isEmpty. Operand 166 states and 182 transitions. [2019-05-23 11:22:44,109 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 130 [2019-05-23 11:22:44,109 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:44,109 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:44,110 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:44,110 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:44,110 INFO L146 ILogger]: Analyzing trace with hash 379922757, now seen corresponding path program 1 times [2019-05-23 11:22:44,110 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:44,111 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:44,112 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,112 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:44,112 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,135 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:44,229 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-05-23 11:22:44,229 INFO L146 ILogger]: The current sequences of interpolants are not accepted, trying to find more. [2019-05-23 11:22:44,229 INFO L146 ILogger]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-05-23 11:22:44,241 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:44,294 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:44,295 INFO L146 ILogger]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:44,300 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:44,421 INFO L146 ILogger]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-05-23 11:22:44,440 INFO L146 ILogger]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-05-23 11:22:44,440 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-05-23 11:22:44,441 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 11:22:44,441 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 11:22:44,441 INFO L146 ILogger]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-05-23 11:22:44,442 INFO L146 ILogger]: Start difference. First operand 166 states and 182 transitions. Second operand 10 states. [2019-05-23 11:22:44,929 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:44,930 INFO L146 ILogger]: Finished difference Result 331 states and 364 transitions. [2019-05-23 11:22:44,931 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 11:22:44,931 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 129 [2019-05-23 11:22:44,931 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:44,932 INFO L146 ILogger]: With dead ends: 331 [2019-05-23 11:22:44,932 INFO L146 ILogger]: Without dead ends: 190 [2019-05-23 11:22:44,933 INFO L146 ILogger]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-05-23 11:22:44,934 INFO L146 ILogger]: Start minimizeSevpa. Operand 190 states. [2019-05-23 11:22:44,940 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 190 to 180. [2019-05-23 11:22:44,941 INFO L146 ILogger]: Start removeUnreachable. Operand 180 states. [2019-05-23 11:22:44,941 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 180 states to 180 states and 196 transitions. [2019-05-23 11:22:44,942 INFO L146 ILogger]: Start accepts. Automaton has 180 states and 196 transitions. Word has length 129 [2019-05-23 11:22:44,942 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:44,942 INFO L146 ILogger]: Abstraction has 180 states and 196 transitions. [2019-05-23 11:22:44,942 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 11:22:44,942 INFO L146 ILogger]: Start isEmpty. Operand 180 states and 196 transitions. [2019-05-23 11:22:44,945 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 144 [2019-05-23 11:22:44,945 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:44,945 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:44,945 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:44,946 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:44,946 INFO L146 ILogger]: Analyzing trace with hash 1280746348, now seen corresponding path program 2 times [2019-05-23 11:22:44,946 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:44,946 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:44,947 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,947 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:44,947 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:44,974 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:45,531 INFO L146 ILogger]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-05-23 11:22:45,532 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:45,532 INFO L146 ILogger]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-05-23 11:22:45,532 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:45,533 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:45,533 INFO L146 ILogger]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:45,533 INFO L146 ILogger]: Start difference. First operand 180 states and 196 transitions. Second operand 11 states. [2019-05-23 11:22:45,910 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:45,911 INFO L146 ILogger]: Finished difference Result 402 states and 431 transitions. [2019-05-23 11:22:45,913 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:22:45,913 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 143 [2019-05-23 11:22:45,914 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:45,916 INFO L146 ILogger]: With dead ends: 402 [2019-05-23 11:22:45,916 INFO L146 ILogger]: Without dead ends: 393 [2019-05-23 11:22:45,918 INFO L146 ILogger]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:45,919 INFO L146 ILogger]: Start minimizeSevpa. Operand 393 states. [2019-05-23 11:22:45,930 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 393 to 279. [2019-05-23 11:22:45,930 INFO L146 ILogger]: Start removeUnreachable. Operand 279 states. [2019-05-23 11:22:45,931 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 279 states to 279 states and 304 transitions. [2019-05-23 11:22:45,931 INFO L146 ILogger]: Start accepts. Automaton has 279 states and 304 transitions. Word has length 143 [2019-05-23 11:22:45,932 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:45,932 INFO L146 ILogger]: Abstraction has 279 states and 304 transitions. [2019-05-23 11:22:45,932 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:45,932 INFO L146 ILogger]: Start isEmpty. Operand 279 states and 304 transitions. [2019-05-23 11:22:45,935 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 153 [2019-05-23 11:22:45,935 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:45,936 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:45,936 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:45,936 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:45,936 INFO L146 ILogger]: Analyzing trace with hash -745362242, now seen corresponding path program 1 times [2019-05-23 11:22:45,936 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:45,937 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:45,937 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:45,938 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:45,938 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:45,950 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:45,950 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:45,950 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:45,966 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:46,010 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:46,011 INFO L146 ILogger]: Trace formula consists of 250 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:46,016 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:46,113 INFO L146 ILogger]: Checked inductivity of 65 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-05-23 11:22:46,132 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:46,132 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:46,132 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:46,133 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:46,133 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:46,133 INFO L146 ILogger]: Start difference. First operand 279 states and 304 transitions. Second operand 9 states. [2019-05-23 11:22:46,241 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:46,242 INFO L146 ILogger]: Finished difference Result 538 states and 588 transitions. [2019-05-23 11:22:46,249 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:46,249 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 152 [2019-05-23 11:22:46,249 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:46,251 INFO L146 ILogger]: With dead ends: 538 [2019-05-23 11:22:46,251 INFO L146 ILogger]: Without dead ends: 291 [2019-05-23 11:22:46,252 INFO L146 ILogger]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:46,252 INFO L146 ILogger]: Start minimizeSevpa. Operand 291 states. [2019-05-23 11:22:46,259 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 291 to 286. [2019-05-23 11:22:46,259 INFO L146 ILogger]: Start removeUnreachable. Operand 286 states. [2019-05-23 11:22:46,260 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions. [2019-05-23 11:22:46,260 INFO L146 ILogger]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 152 [2019-05-23 11:22:46,261 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:46,261 INFO L146 ILogger]: Abstraction has 286 states and 311 transitions. [2019-05-23 11:22:46,261 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:46,261 INFO L146 ILogger]: Start isEmpty. Operand 286 states and 311 transitions. [2019-05-23 11:22:46,263 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 160 [2019-05-23 11:22:46,263 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:46,264 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:46,264 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:46,264 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:46,264 INFO L146 ILogger]: Analyzing trace with hash 1348160392, now seen corresponding path program 2 times [2019-05-23 11:22:46,264 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:46,265 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:46,265 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,265 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:46,266 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,276 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:46,277 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:46,277 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:46,294 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:46,340 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:46,340 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:46,341 INFO L146 ILogger]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:46,346 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:46,461 INFO L146 ILogger]: Checked inductivity of 87 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-05-23 11:22:46,480 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:46,480 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:46,480 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:46,481 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:46,481 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:46,481 INFO L146 ILogger]: Start difference. First operand 286 states and 311 transitions. Second operand 7 states. [2019-05-23 11:22:46,710 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:46,710 INFO L146 ILogger]: Finished difference Result 595 states and 660 transitions. [2019-05-23 11:22:46,710 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:46,710 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 159 [2019-05-23 11:22:46,711 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:46,714 INFO L146 ILogger]: With dead ends: 595 [2019-05-23 11:22:46,714 INFO L146 ILogger]: Without dead ends: 382 [2019-05-23 11:22:46,715 INFO L146 ILogger]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:46,715 INFO L146 ILogger]: Start minimizeSevpa. Operand 382 states. [2019-05-23 11:22:46,722 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 382 to 322. [2019-05-23 11:22:46,722 INFO L146 ILogger]: Start removeUnreachable. Operand 322 states. [2019-05-23 11:22:46,723 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 322 states to 322 states and 343 transitions. [2019-05-23 11:22:46,724 INFO L146 ILogger]: Start accepts. Automaton has 322 states and 343 transitions. Word has length 159 [2019-05-23 11:22:46,724 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:46,724 INFO L146 ILogger]: Abstraction has 322 states and 343 transitions. [2019-05-23 11:22:46,724 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:46,724 INFO L146 ILogger]: Start isEmpty. Operand 322 states and 343 transitions. [2019-05-23 11:22:46,726 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 205 [2019-05-23 11:22:46,726 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:46,727 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:46,727 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:46,727 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:46,727 INFO L146 ILogger]: Analyzing trace with hash 503003842, now seen corresponding path program 1 times [2019-05-23 11:22:46,727 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:46,728 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:46,728 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,729 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:46,729 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:46,740 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:46,741 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:46,741 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:46,761 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:46,812 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:46,813 INFO L146 ILogger]: Trace formula consists of 328 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:46,817 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:46,961 INFO L146 ILogger]: Checked inductivity of 169 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2019-05-23 11:22:46,979 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:46,979 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:22:46,980 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:46,980 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:46,980 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:46,981 INFO L146 ILogger]: Start difference. First operand 322 states and 343 transitions. Second operand 11 states. [2019-05-23 11:22:47,152 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:47,153 INFO L146 ILogger]: Finished difference Result 617 states and 659 transitions. [2019-05-23 11:22:47,156 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:47,156 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 204 [2019-05-23 11:22:47,156 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:47,158 INFO L146 ILogger]: With dead ends: 617 [2019-05-23 11:22:47,158 INFO L146 ILogger]: Without dead ends: 334 [2019-05-23 11:22:47,159 INFO L146 ILogger]: 0 DeclaredPredicates, 211 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:47,159 INFO L146 ILogger]: Start minimizeSevpa. Operand 334 states. [2019-05-23 11:22:47,166 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 334 to 329. [2019-05-23 11:22:47,166 INFO L146 ILogger]: Start removeUnreachable. Operand 329 states. [2019-05-23 11:22:47,167 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 329 states to 329 states and 350 transitions. [2019-05-23 11:22:47,167 INFO L146 ILogger]: Start accepts. Automaton has 329 states and 350 transitions. Word has length 204 [2019-05-23 11:22:47,167 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:47,167 INFO L146 ILogger]: Abstraction has 329 states and 350 transitions. [2019-05-23 11:22:47,168 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:47,168 INFO L146 ILogger]: Start isEmpty. Operand 329 states and 350 transitions. [2019-05-23 11:22:47,171 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 212 [2019-05-23 11:22:47,172 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:47,172 INFO L146 ILogger]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:47,172 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:47,172 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:47,173 INFO L146 ILogger]: Analyzing trace with hash -257890164, now seen corresponding path program 2 times [2019-05-23 11:22:47,173 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:47,173 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:47,174 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:47,174 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:47,174 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:47,185 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:47,185 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:47,185 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:47,208 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:47,299 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:47,299 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:47,300 INFO L146 ILogger]: Trace formula consists of 338 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:47,303 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:47,489 INFO L146 ILogger]: Checked inductivity of 198 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2019-05-23 11:22:47,519 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:47,519 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:47,520 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:47,520 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:47,520 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:47,520 INFO L146 ILogger]: Start difference. First operand 329 states and 350 transitions. Second operand 13 states. [2019-05-23 11:22:47,767 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:47,767 INFO L146 ILogger]: Finished difference Result 624 states and 666 transitions. [2019-05-23 11:22:47,774 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:47,774 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 211 [2019-05-23 11:22:47,774 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:47,776 INFO L146 ILogger]: With dead ends: 624 [2019-05-23 11:22:47,776 INFO L146 ILogger]: Without dead ends: 341 [2019-05-23 11:22:47,779 INFO L146 ILogger]: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:22:47,780 INFO L146 ILogger]: Start minimizeSevpa. Operand 341 states. [2019-05-23 11:22:47,787 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 341 to 336. [2019-05-23 11:22:47,788 INFO L146 ILogger]: Start removeUnreachable. Operand 336 states. [2019-05-23 11:22:47,789 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 336 states to 336 states and 357 transitions. [2019-05-23 11:22:47,789 INFO L146 ILogger]: Start accepts. Automaton has 336 states and 357 transitions. Word has length 211 [2019-05-23 11:22:47,789 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:47,789 INFO L146 ILogger]: Abstraction has 336 states and 357 transitions. [2019-05-23 11:22:47,789 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:47,790 INFO L146 ILogger]: Start isEmpty. Operand 336 states and 357 transitions. [2019-05-23 11:22:47,791 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 219 [2019-05-23 11:22:47,791 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:47,791 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:47,792 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:47,792 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:47,793 INFO L146 ILogger]: Analyzing trace with hash -312736894, now seen corresponding path program 3 times [2019-05-23 11:22:47,794 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:47,794 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:47,795 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:47,795 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:47,795 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:47,819 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:47,819 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:47,819 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:47,831 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:47,914 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:22:47,914 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:47,916 INFO L146 ILogger]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:47,919 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:48,405 INFO L146 ILogger]: Checked inductivity of 234 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2019-05-23 11:22:48,459 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:48,459 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:48,460 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:48,460 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:48,460 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:48,461 INFO L146 ILogger]: Start difference. First operand 336 states and 357 transitions. Second operand 7 states. [2019-05-23 11:22:48,996 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:48,996 INFO L146 ILogger]: Finished difference Result 449 states and 478 transitions. [2019-05-23 11:22:48,996 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:48,996 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 218 [2019-05-23 11:22:48,997 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:48,998 INFO L146 ILogger]: With dead ends: 449 [2019-05-23 11:22:48,998 INFO L146 ILogger]: Without dead ends: 360 [2019-05-23 11:22:48,999 INFO L146 ILogger]: 0 DeclaredPredicates, 221 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:48,999 INFO L146 ILogger]: Start minimizeSevpa. Operand 360 states. [2019-05-23 11:22:49,005 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 360 to 350. [2019-05-23 11:22:49,005 INFO L146 ILogger]: Start removeUnreachable. Operand 350 states. [2019-05-23 11:22:49,007 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 350 states to 350 states and 371 transitions. [2019-05-23 11:22:49,007 INFO L146 ILogger]: Start accepts. Automaton has 350 states and 371 transitions. Word has length 218 [2019-05-23 11:22:49,007 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:49,007 INFO L146 ILogger]: Abstraction has 350 states and 371 transitions. [2019-05-23 11:22:49,008 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:49,008 INFO L146 ILogger]: Start isEmpty. Operand 350 states and 371 transitions. [2019-05-23 11:22:49,009 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 226 [2019-05-23 11:22:49,009 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:49,009 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:49,010 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:49,010 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:49,010 INFO L146 ILogger]: Analyzing trace with hash -1538059067, now seen corresponding path program 4 times [2019-05-23 11:22:49,010 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:49,010 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:49,011 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:49,011 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:49,011 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:49,040 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:49,040 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:49,040 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:49,056 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:49,106 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:49,107 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:49,109 INFO L146 ILogger]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:49,112 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:49,203 INFO L146 ILogger]: Checked inductivity of 249 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2019-05-23 11:22:49,221 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:49,221 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 11:22:49,221 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:49,222 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:49,222 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:49,222 INFO L146 ILogger]: Start difference. First operand 350 states and 371 transitions. Second operand 7 states. [2019-05-23 11:22:49,593 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:49,593 INFO L146 ILogger]: Finished difference Result 662 states and 708 transitions. [2019-05-23 11:22:49,594 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 11:22:49,594 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 225 [2019-05-23 11:22:49,595 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:49,597 INFO L146 ILogger]: With dead ends: 662 [2019-05-23 11:22:49,597 INFO L146 ILogger]: Without dead ends: 385 [2019-05-23 11:22:49,598 INFO L146 ILogger]: 0 DeclaredPredicates, 228 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:49,598 INFO L146 ILogger]: Start minimizeSevpa. Operand 385 states. [2019-05-23 11:22:49,605 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 385 to 375. [2019-05-23 11:22:49,605 INFO L146 ILogger]: Start removeUnreachable. Operand 375 states. [2019-05-23 11:22:49,606 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 375 states to 375 states and 396 transitions. [2019-05-23 11:22:49,607 INFO L146 ILogger]: Start accepts. Automaton has 375 states and 396 transitions. Word has length 225 [2019-05-23 11:22:49,607 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:49,607 INFO L146 ILogger]: Abstraction has 375 states and 396 transitions. [2019-05-23 11:22:49,607 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:49,607 INFO L146 ILogger]: Start isEmpty. Operand 375 states and 396 transitions. [2019-05-23 11:22:49,609 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 241 [2019-05-23 11:22:49,609 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:49,609 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:49,610 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:49,610 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:49,610 INFO L146 ILogger]: Analyzing trace with hash 1803559005, now seen corresponding path program 5 times [2019-05-23 11:22:49,610 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:49,610 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:49,611 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:49,611 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:49,611 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:49,622 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:49,623 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:49,623 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:49,641 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:49,754 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-05-23 11:22:49,755 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:49,757 INFO L146 ILogger]: Trace formula consists of 379 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:49,760 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:50,046 INFO L146 ILogger]: Checked inductivity of 312 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-05-23 11:22:50,066 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:50,066 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:50,066 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:50,066 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:50,067 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:50,067 INFO L146 ILogger]: Start difference. First operand 375 states and 396 transitions. Second operand 9 states. [2019-05-23 11:22:50,424 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:50,424 INFO L146 ILogger]: Finished difference Result 707 states and 753 transitions. [2019-05-23 11:22:50,424 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:50,424 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 240 [2019-05-23 11:22:50,424 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:50,426 INFO L146 ILogger]: With dead ends: 707 [2019-05-23 11:22:50,426 INFO L146 ILogger]: Without dead ends: 410 [2019-05-23 11:22:50,427 INFO L146 ILogger]: 0 DeclaredPredicates, 245 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:50,428 INFO L146 ILogger]: Start minimizeSevpa. Operand 410 states. [2019-05-23 11:22:50,436 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 410 to 400. [2019-05-23 11:22:50,436 INFO L146 ILogger]: Start removeUnreachable. Operand 400 states. [2019-05-23 11:22:50,437 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 400 states to 400 states and 421 transitions. [2019-05-23 11:22:50,438 INFO L146 ILogger]: Start accepts. Automaton has 400 states and 421 transitions. Word has length 240 [2019-05-23 11:22:50,438 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:50,438 INFO L146 ILogger]: Abstraction has 400 states and 421 transitions. [2019-05-23 11:22:50,438 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:50,438 INFO L146 ILogger]: Start isEmpty. Operand 400 states and 421 transitions. [2019-05-23 11:22:50,440 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 256 [2019-05-23 11:22:50,440 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:50,440 INFO L146 ILogger]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:50,440 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:50,441 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:50,441 INFO L146 ILogger]: Analyzing trace with hash 1672264517, now seen corresponding path program 6 times [2019-05-23 11:22:50,441 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:50,441 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:50,442 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,442 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:50,442 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,453 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:50,453 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:50,453 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:50,470 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-05-23 11:22:51,019 INFO L146 ILogger]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-05-23 11:22:51,019 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:51,021 INFO L146 ILogger]: Trace formula consists of 400 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:51,025 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:51,182 INFO L146 ILogger]: Checked inductivity of 390 backedges. 11 proven. 74 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2019-05-23 11:22:51,201 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:51,201 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:22:51,202 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:51,202 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:51,202 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:51,203 INFO L146 ILogger]: Start difference. First operand 400 states and 421 transitions. Second operand 15 states. [2019-05-23 11:22:51,860 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:51,861 INFO L146 ILogger]: Finished difference Result 910 states and 993 transitions. [2019-05-23 11:22:51,861 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:22:51,861 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 255 [2019-05-23 11:22:51,861 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:51,865 INFO L146 ILogger]: With dead ends: 910 [2019-05-23 11:22:51,866 INFO L146 ILogger]: Without dead ends: 615 [2019-05-23 11:22:51,867 INFO L146 ILogger]: 0 DeclaredPredicates, 278 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:51,868 INFO L146 ILogger]: Start minimizeSevpa. Operand 615 states. [2019-05-23 11:22:51,880 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 615 to 580. [2019-05-23 11:22:51,880 INFO L146 ILogger]: Start removeUnreachable. Operand 580 states. [2019-05-23 11:22:51,881 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 580 states to 580 states and 621 transitions. [2019-05-23 11:22:51,882 INFO L146 ILogger]: Start accepts. Automaton has 580 states and 621 transitions. Word has length 255 [2019-05-23 11:22:51,882 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:51,882 INFO L146 ILogger]: Abstraction has 580 states and 621 transitions. [2019-05-23 11:22:51,882 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:51,882 INFO L146 ILogger]: Start isEmpty. Operand 580 states and 621 transitions. [2019-05-23 11:22:51,884 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 364 [2019-05-23 11:22:51,885 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:51,885 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:51,885 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:51,885 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:51,886 INFO L146 ILogger]: Analyzing trace with hash 1803391813, now seen corresponding path program 7 times [2019-05-23 11:22:51,886 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:51,886 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:51,887 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,887 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:51,887 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:51,900 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:51,900 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:51,900 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:51,914 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:51,993 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:51,994 INFO L146 ILogger]: Trace formula consists of 568 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 11:22:51,998 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:52,179 INFO L146 ILogger]: Checked inductivity of 1020 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2019-05-23 11:22:52,199 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:52,199 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 11:22:52,200 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 11:22:52,200 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 11:22:52,200 INFO L146 ILogger]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:52,201 INFO L146 ILogger]: Start difference. First operand 580 states and 621 transitions. Second operand 15 states. [2019-05-23 11:22:52,387 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:52,387 INFO L146 ILogger]: Finished difference Result 1119 states and 1201 transitions. [2019-05-23 11:22:52,388 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 11:22:52,388 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 363 [2019-05-23 11:22:52,388 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:52,390 INFO L146 ILogger]: With dead ends: 1119 [2019-05-23 11:22:52,390 INFO L146 ILogger]: Without dead ends: 592 [2019-05-23 11:22:52,391 INFO L146 ILogger]: 0 DeclaredPredicates, 374 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2019-05-23 11:22:52,392 INFO L146 ILogger]: Start minimizeSevpa. Operand 592 states. [2019-05-23 11:22:52,402 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 592 to 587. [2019-05-23 11:22:52,402 INFO L146 ILogger]: Start removeUnreachable. Operand 587 states. [2019-05-23 11:22:52,404 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 587 states to 587 states and 628 transitions. [2019-05-23 11:22:52,404 INFO L146 ILogger]: Start accepts. Automaton has 587 states and 628 transitions. Word has length 363 [2019-05-23 11:22:52,404 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:52,404 INFO L146 ILogger]: Abstraction has 587 states and 628 transitions. [2019-05-23 11:22:52,405 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 11:22:52,405 INFO L146 ILogger]: Start isEmpty. Operand 587 states and 628 transitions. [2019-05-23 11:22:52,407 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 371 [2019-05-23 11:22:52,407 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:52,407 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:52,408 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:52,408 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:52,408 INFO L146 ILogger]: Analyzing trace with hash -445690821, now seen corresponding path program 8 times [2019-05-23 11:22:52,408 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:52,408 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:52,409 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,409 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,410 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,422 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:52,423 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:52,423 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:52,437 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:52,557 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:52,558 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:52,559 INFO L146 ILogger]: Trace formula consists of 578 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:22:52,564 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:52,805 INFO L146 ILogger]: Checked inductivity of 1063 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2019-05-23 11:22:52,824 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:52,824 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:22:52,825 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:22:52,825 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:22:52,825 INFO L146 ILogger]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:22:52,826 INFO L146 ILogger]: Start difference. First operand 587 states and 628 transitions. Second operand 17 states. [2019-05-23 11:22:53,081 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:53,082 INFO L146 ILogger]: Finished difference Result 1126 states and 1208 transitions. [2019-05-23 11:22:53,083 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:22:53,083 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 370 [2019-05-23 11:22:53,084 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:53,089 INFO L146 ILogger]: With dead ends: 1126 [2019-05-23 11:22:53,089 INFO L146 ILogger]: Without dead ends: 599 [2019-05-23 11:22:53,091 INFO L146 ILogger]: 0 DeclaredPredicates, 383 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2019-05-23 11:22:53,092 INFO L146 ILogger]: Start minimizeSevpa. Operand 599 states. [2019-05-23 11:22:53,103 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 599 to 594. [2019-05-23 11:22:53,103 INFO L146 ILogger]: Start removeUnreachable. Operand 594 states. [2019-05-23 11:22:53,105 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 594 states to 594 states and 635 transitions. [2019-05-23 11:22:53,105 INFO L146 ILogger]: Start accepts. Automaton has 594 states and 635 transitions. Word has length 370 [2019-05-23 11:22:53,105 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:53,105 INFO L146 ILogger]: Abstraction has 594 states and 635 transitions. [2019-05-23 11:22:53,105 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:22:53,106 INFO L146 ILogger]: Start isEmpty. Operand 594 states and 635 transitions. [2019-05-23 11:22:53,108 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 378 [2019-05-23 11:22:53,109 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:53,109 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:53,109 INFO L146 ILogger]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:53,110 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:53,110 INFO L146 ILogger]: Analyzing trace with hash 889172613, now seen corresponding path program 9 times [2019-05-23 11:22:53,110 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:53,110 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:53,111 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,111 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:53,112 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,138 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:53,139 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:53,142 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:53,155 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:53,738 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-05-23 11:22:53,738 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:53,739 INFO L146 ILogger]: Trace formula consists of 307 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 11:22:53,744 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:53,925 INFO L146 ILogger]: Checked inductivity of 1113 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2019-05-23 11:22:53,955 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:53,955 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 11:22:53,956 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 11:22:53,956 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 11:22:53,957 INFO L146 ILogger]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-05-23 11:22:53,957 INFO L146 ILogger]: Start difference. First operand 594 states and 635 transitions. Second operand 9 states. [2019-05-23 11:22:54,111 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:54,111 INFO L146 ILogger]: Finished difference Result 799 states and 856 transitions. [2019-05-23 11:22:54,112 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 11:22:54,112 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 377 [2019-05-23 11:22:54,113 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:54,115 INFO L146 ILogger]: With dead ends: 799 [2019-05-23 11:22:54,115 INFO L146 ILogger]: Without dead ends: 618 [2019-05-23 11:22:54,116 INFO L146 ILogger]: 0 DeclaredPredicates, 382 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2019-05-23 11:22:54,117 INFO L146 ILogger]: Start minimizeSevpa. Operand 618 states. [2019-05-23 11:22:54,127 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 618 to 608. [2019-05-23 11:22:54,127 INFO L146 ILogger]: Start removeUnreachable. Operand 608 states. [2019-05-23 11:22:54,128 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 608 states to 608 states and 649 transitions. [2019-05-23 11:22:54,129 INFO L146 ILogger]: Start accepts. Automaton has 608 states and 649 transitions. Word has length 377 [2019-05-23 11:22:54,129 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:54,129 INFO L146 ILogger]: Abstraction has 608 states and 649 transitions. [2019-05-23 11:22:54,129 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 11:22:54,129 INFO L146 ILogger]: Start isEmpty. Operand 608 states and 649 transitions. [2019-05-23 11:22:54,132 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 385 [2019-05-23 11:22:54,132 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:54,132 INFO L146 ILogger]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:54,133 INFO L146 ILogger]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:54,133 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:54,133 INFO L146 ILogger]: Analyzing trace with hash -1698185310, now seen corresponding path program 10 times [2019-05-23 11:22:54,133 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:54,133 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:54,134 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:54,134 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:54,134 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:54,147 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:54,147 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:54,148 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:54,159 INFO L146 ILogger]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-05-23 11:22:54,232 INFO L146 ILogger]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-05-23 11:22:54,232 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:54,233 INFO L146 ILogger]: Trace formula consists of 514 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:22:54,238 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:55,376 INFO L146 ILogger]: Checked inductivity of 1135 backedges. 127 proven. 38 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2019-05-23 11:22:55,399 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:55,400 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:22:55,400 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:55,400 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:55,400 INFO L146 ILogger]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:55,401 INFO L146 ILogger]: Start difference. First operand 608 states and 649 transitions. Second operand 11 states. [2019-05-23 11:22:55,670 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:55,670 INFO L146 ILogger]: Finished difference Result 1154 states and 1240 transitions. [2019-05-23 11:22:55,670 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:22:55,670 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 384 [2019-05-23 11:22:55,671 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:55,673 INFO L146 ILogger]: With dead ends: 1154 [2019-05-23 11:22:55,674 INFO L146 ILogger]: Without dead ends: 643 [2019-05-23 11:22:55,675 INFO L146 ILogger]: 0 DeclaredPredicates, 391 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:55,676 INFO L146 ILogger]: Start minimizeSevpa. Operand 643 states. [2019-05-23 11:22:55,686 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 643 to 633. [2019-05-23 11:22:55,686 INFO L146 ILogger]: Start removeUnreachable. Operand 633 states. [2019-05-23 11:22:55,688 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 633 states to 633 states and 674 transitions. [2019-05-23 11:22:55,688 INFO L146 ILogger]: Start accepts. Automaton has 633 states and 674 transitions. Word has length 384 [2019-05-23 11:22:55,688 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:55,689 INFO L146 ILogger]: Abstraction has 633 states and 674 transitions. [2019-05-23 11:22:55,689 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:55,689 INFO L146 ILogger]: Start isEmpty. Operand 633 states and 674 transitions. [2019-05-23 11:22:55,691 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 400 [2019-05-23 11:22:55,691 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:55,692 INFO L146 ILogger]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:55,692 INFO L146 ILogger]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:55,692 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:55,693 INFO L146 ILogger]: Analyzing trace with hash -615013264, now seen corresponding path program 11 times [2019-05-23 11:22:55,693 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:55,693 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:55,694 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,694 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:55,694 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,707 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:55,707 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:55,707 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:55,724 INFO L146 ILogger]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-05-23 11:22:55,913 INFO L146 ILogger]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2019-05-23 11:22:55,914 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,915 INFO L146 ILogger]: Trace formula consists of 619 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:55,918 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:56,050 INFO L146 ILogger]: Checked inductivity of 1288 backedges. 156 proven. 60 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2019-05-23 11:22:56,071 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:56,071 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:56,072 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:56,072 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:56,072 INFO L146 ILogger]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:56,072 INFO L146 ILogger]: Start difference. First operand 633 states and 674 transitions. Second operand 13 states. [2019-05-23 11:22:56,428 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:56,429 INFO L146 ILogger]: Finished difference Result 1199 states and 1285 transitions. [2019-05-23 11:22:56,429 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:56,429 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 399 [2019-05-23 11:22:56,429 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:56,432 INFO L146 ILogger]: With dead ends: 1199 [2019-05-23 11:22:56,432 INFO L146 ILogger]: Without dead ends: 668 [2019-05-23 11:22:56,434 INFO L146 ILogger]: 0 DeclaredPredicates, 408 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2019-05-23 11:22:56,435 INFO L146 ILogger]: Start minimizeSevpa. Operand 668 states. [2019-05-23 11:22:56,444 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 668 to 658. [2019-05-23 11:22:56,444 INFO L146 ILogger]: Start removeUnreachable. Operand 658 states. [2019-05-23 11:22:56,446 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 658 states to 658 states and 699 transitions. [2019-05-23 11:22:56,446 INFO L146 ILogger]: Start accepts. Automaton has 658 states and 699 transitions. Word has length 399 [2019-05-23 11:22:56,446 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:56,447 INFO L146 ILogger]: Abstraction has 658 states and 699 transitions. [2019-05-23 11:22:56,447 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:56,447 INFO L146 ILogger]: Start isEmpty. Operand 658 states and 699 transitions. [2019-05-23 11:22:56,449 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 415 [2019-05-23 11:22:56,450 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:56,450 INFO L146 ILogger]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:56,450 INFO L146 ILogger]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:56,451 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:56,451 INFO L146 ILogger]: Analyzing trace with hash -322012958, now seen corresponding path program 12 times [2019-05-23 11:22:56,451 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:56,451 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:56,452 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:56,452 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:56,452 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:56,465 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:56,465 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:56,465 INFO L146 ILogger]: Switched to mode Z3_FP 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 [2019-05-23 11:22:56,481 INFO L146 ILogger]: Keeping assertion order MIX_INSIDE_OUTSIDE