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/rangesum_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:22:47,453 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:22:47,454 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:22:47,471 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:22:47,471 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:22:47,472 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:22:47,474 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:22:47,477 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:22:47,479 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:22:47,480 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:22:47,488 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:22:47,488 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:22:47,489 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:22:47,491 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:22:47,492 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:22:47,494 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:22:47,495 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:22:47,499 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:22:47,503 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:22:47,505 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:22:47,506 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:22:47,508 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:22:47,511 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:22:47,511 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:22:47,512 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:22:47,512 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:22:47,513 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:22:47,515 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:22:47,515 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:22:47,516 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:22:47,516 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:22:47,518 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:22:47,520 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:22:47,520 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:22:47,521 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:22:47,521 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:22:47,521 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:22:47,522 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:22:47,524 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:22:47,524 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:22:47,546 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:22:47,546 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:22:47,553 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:22:47,553 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:22:47,553 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:22:47,554 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:22:47,554 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:22:47,554 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:22:47,554 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:22:47,554 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:22:47,554 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:22:47,555 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:22:47,555 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:22:47,555 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:22:47,555 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:22:47,555 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:22:47,556 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:22:47,557 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:22:47,557 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:22:47,557 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:22:47,557 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:22:47,557 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:22:47,557 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:22:47,558 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:22:47,558 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:22:47,558 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:22:47,558 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:22:47,558 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:22:47,559 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 11:22:47,614 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:22:47,630 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:22:47,634 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:22:47,635 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:22:47,636 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:22:47,636 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2019-05-23 11:22:47,695 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984d0d8c9/014c07d6a6394ee29b68d1f24b01996e/FLAGcee297f00 [2019-05-23 11:22:48,078 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:22:48,079 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2019-05-23 11:22:48,085 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984d0d8c9/014c07d6a6394ee29b68d1f24b01996e/FLAGcee297f00 [2019-05-23 11:22:48,454 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984d0d8c9/014c07d6a6394ee29b68d1f24b01996e [2019-05-23 11:22:48,462 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:22:48,464 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:22:48,465 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:48,465 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:22:48,468 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:22:48,469 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,471 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1987aa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48, skipping insertion in model container [2019-05-23 11:22:48,472 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,479 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:22:48,499 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:22:48,732 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:48,752 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:22:48,791 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:22:48,813 INFO L146 ILogger]: Completed translation [2019-05-23 11:22:48,814 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48 WrapperNode [2019-05-23 11:22:48,814 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:22:48,814 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:48,815 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:22:48,815 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:22:48,823 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,831 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,863 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:22:48,863 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:22:48,863 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:22:48,864 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:22:48,964 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,965 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,968 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,969 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,980 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,986 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,990 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (1/1) ... [2019-05-23 11:22:48,993 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:22:48,994 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:22:48,994 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:22:48,994 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:22:48,995 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (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 11:22:49,040 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:22:49,040 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:22:49,040 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:22:49,040 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:22:49,040 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:22:49,040 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:22:49,816 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:22:49,817 INFO L146 ILogger]: Removed 17 assume(true) statements. [2019-05-23 11:22:49,819 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:49 BoogieIcfgContainer [2019-05-23 11:22:49,819 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:22:49,820 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:22:49,820 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:22:49,826 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:22:49,826 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:22:48" (1/3) ... [2019-05-23 11:22:49,827 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cafde3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:49, skipping insertion in model container [2019-05-23 11:22:49,827 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:22:48" (2/3) ... [2019-05-23 11:22:49,827 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cafde3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:22:49, skipping insertion in model container [2019-05-23 11:22:49,828 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:22:49" (3/3) ... [2019-05-23 11:22:49,829 INFO L146 ILogger]: Analyzing ICFG rangesum_false-unreach-call_true-termination.i [2019-05-23 11:22:49,840 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:22:49,849 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:22:49,868 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:22:49,909 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:22:49,909 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:22:49,910 INFO L146 ILogger]: Hoare is true [2019-05-23 11:22:49,910 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:22:49,910 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:22:49,910 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:22:49,911 INFO L146 ILogger]: Difference is false [2019-05-23 11:22:49,911 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:22:49,911 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:22:49,935 INFO L146 ILogger]: Start isEmpty. Operand 129 states. [2019-05-23 11:22:49,947 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 84 [2019-05-23 11:22:49,947 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:49,948 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] [2019-05-23 11:22:49,950 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:49,955 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:49,956 INFO L146 ILogger]: Analyzing trace with hash 1567369305, now seen corresponding path program 1 times [2019-05-23 11:22:49,958 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:49,958 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:50,001 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,001 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:50,001 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,042 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:50,104 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 11:22:50,107 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:50,107 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:22:50,111 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:22:50,125 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:22:50,126 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:22:50,128 INFO L146 ILogger]: Start difference. First operand 129 states. Second operand 2 states. [2019-05-23 11:22:50,157 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:50,158 INFO L146 ILogger]: Finished difference Result 236 states and 267 transitions. [2019-05-23 11:22:50,158 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:22:50,160 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 83 [2019-05-23 11:22:50,160 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:50,172 INFO L146 ILogger]: With dead ends: 236 [2019-05-23 11:22:50,172 INFO L146 ILogger]: Without dead ends: 123 [2019-05-23 11:22:50,177 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:22:50,192 INFO L146 ILogger]: Start minimizeSevpa. Operand 123 states. [2019-05-23 11:22:50,215 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-05-23 11:22:50,216 INFO L146 ILogger]: Start removeUnreachable. Operand 123 states. [2019-05-23 11:22:50,219 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2019-05-23 11:22:50,220 INFO L146 ILogger]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 83 [2019-05-23 11:22:50,221 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:50,221 INFO L146 ILogger]: Abstraction has 123 states and 133 transitions. [2019-05-23 11:22:50,221 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:22:50,221 INFO L146 ILogger]: Start isEmpty. Operand 123 states and 133 transitions. [2019-05-23 11:22:50,225 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 84 [2019-05-23 11:22:50,225 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:50,225 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] [2019-05-23 11:22:50,225 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:50,226 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:50,226 INFO L146 ILogger]: Analyzing trace with hash -1531817916, now seen corresponding path program 1 times [2019-05-23 11:22:50,226 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:50,226 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:50,228 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,230 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:50,230 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,257 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:50,257 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:50,257 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:50,272 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:50,326 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:50,328 INFO L146 ILogger]: Trace formula consists of 151 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:22:50,336 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:50,386 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 11:22:50,414 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:50,414 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 11:22:50,416 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 11:22:50,418 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 11:22:50,419 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 11:22:50,419 INFO L146 ILogger]: Start difference. First operand 123 states and 133 transitions. Second operand 3 states. [2019-05-23 11:22:50,557 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:50,557 INFO L146 ILogger]: Finished difference Result 270 states and 295 transitions. [2019-05-23 11:22:50,561 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 11:22:50,562 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 83 [2019-05-23 11:22:50,562 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:50,569 INFO L146 ILogger]: With dead ends: 270 [2019-05-23 11:22:50,570 INFO L146 ILogger]: Without dead ends: 193 [2019-05-23 11:22:50,572 INFO L146 ILogger]: 0 DeclaredPredicates, 82 GetRequests, 81 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 11:22:50,572 INFO L146 ILogger]: Start minimizeSevpa. Operand 193 states. [2019-05-23 11:22:50,589 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 193 to 141. [2019-05-23 11:22:50,589 INFO L146 ILogger]: Start removeUnreachable. Operand 141 states. [2019-05-23 11:22:50,591 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 141 states to 141 states and 157 transitions. [2019-05-23 11:22:50,591 INFO L146 ILogger]: Start accepts. Automaton has 141 states and 157 transitions. Word has length 83 [2019-05-23 11:22:50,592 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:50,592 INFO L146 ILogger]: Abstraction has 141 states and 157 transitions. [2019-05-23 11:22:50,592 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 11:22:50,592 INFO L146 ILogger]: Start isEmpty. Operand 141 states and 157 transitions. [2019-05-23 11:22:50,595 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 84 [2019-05-23 11:22:50,595 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:50,596 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] [2019-05-23 11:22:50,596 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:50,596 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:50,596 INFO L146 ILogger]: Analyzing trace with hash -1404933052, now seen corresponding path program 1 times [2019-05-23 11:22:50,597 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:50,597 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:50,598 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,598 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:50,598 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:50,630 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:51,063 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 11:22:51,063 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:51,063 INFO L146 ILogger]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-05-23 11:22:51,064 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:22:51,064 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:22:51,065 INFO L146 ILogger]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:22:51,065 INFO L146 ILogger]: Start difference. First operand 141 states and 157 transitions. Second operand 11 states. [2019-05-23 11:22:51,867 WARN L146 ILogger]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-05-23 11:22:52,068 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:52,068 INFO L146 ILogger]: Finished difference Result 318 states and 347 transitions. [2019-05-23 11:22:52,070 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 11:22:52,070 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 83 [2019-05-23 11:22:52,070 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:52,073 INFO L146 ILogger]: With dead ends: 318 [2019-05-23 11:22:52,073 INFO L146 ILogger]: Without dead ends: 309 [2019-05-23 11:22:52,074 INFO L146 ILogger]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2019-05-23 11:22:52,075 INFO L146 ILogger]: Start minimizeSevpa. Operand 309 states. [2019-05-23 11:22:52,089 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 309 to 218. [2019-05-23 11:22:52,089 INFO L146 ILogger]: Start removeUnreachable. Operand 218 states. [2019-05-23 11:22:52,091 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 218 states to 218 states and 243 transitions. [2019-05-23 11:22:52,091 INFO L146 ILogger]: Start accepts. Automaton has 218 states and 243 transitions. Word has length 83 [2019-05-23 11:22:52,092 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:52,092 INFO L146 ILogger]: Abstraction has 218 states and 243 transitions. [2019-05-23 11:22:52,092 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:22:52,092 INFO L146 ILogger]: Start isEmpty. Operand 218 states and 243 transitions. [2019-05-23 11:22:52,095 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 93 [2019-05-23 11:22:52,095 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:52,096 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, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:52,096 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:52,096 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:52,096 INFO L146 ILogger]: Analyzing trace with hash 2009775177, now seen corresponding path program 1 times [2019-05-23 11:22:52,097 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:52,097 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:52,098 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,098 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,098 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,121 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:52,121 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:52,121 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:52,133 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,179 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:52,180 INFO L146 ILogger]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:22:52,184 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:52,286 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 11:22:52,313 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:52,313 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:22:52,313 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:22:52,314 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:22:52,314 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:22:52,314 INFO L146 ILogger]: Start difference. First operand 218 states and 243 transitions. Second operand 4 states. [2019-05-23 11:22:52,490 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:52,491 INFO L146 ILogger]: Finished difference Result 420 states and 470 transitions. [2019-05-23 11:22:52,495 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:22:52,495 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 92 [2019-05-23 11:22:52,495 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:52,496 INFO L146 ILogger]: With dead ends: 420 [2019-05-23 11:22:52,497 INFO L146 ILogger]: Without dead ends: 224 [2019-05-23 11:22:52,498 INFO L146 ILogger]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:22:52,502 INFO L146 ILogger]: Start minimizeSevpa. Operand 224 states. [2019-05-23 11:22:52,529 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 224 to 219. [2019-05-23 11:22:52,529 INFO L146 ILogger]: Start removeUnreachable. Operand 219 states. [2019-05-23 11:22:52,530 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 219 states to 219 states and 244 transitions. [2019-05-23 11:22:52,530 INFO L146 ILogger]: Start accepts. Automaton has 219 states and 244 transitions. Word has length 92 [2019-05-23 11:22:52,531 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:52,531 INFO L146 ILogger]: Abstraction has 219 states and 244 transitions. [2019-05-23 11:22:52,531 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:22:52,531 INFO L146 ILogger]: Start isEmpty. Operand 219 states and 244 transitions. [2019-05-23 11:22:52,536 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 100 [2019-05-23 11:22:52,537 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:52,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:52,537 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:52,537 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:52,537 INFO L146 ILogger]: Analyzing trace with hash 220950780, now seen corresponding path program 1 times [2019-05-23 11:22:52,541 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:52,541 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:52,542 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,542 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,542 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,566 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:52,567 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:52,567 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-05-23 11:22:52,586 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,629 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:52,630 INFO L146 ILogger]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:22:52,634 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:52,718 INFO L146 ILogger]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 11:22:52,736 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:52,736 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:22:52,737 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:52,737 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:52,737 INFO L146 ILogger]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:52,737 INFO L146 ILogger]: Start difference. First operand 219 states and 244 transitions. Second operand 6 states. [2019-05-23 11:22:52,965 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:52,966 INFO L146 ILogger]: Finished difference Result 427 states and 477 transitions. [2019-05-23 11:22:52,968 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:52,968 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 99 [2019-05-23 11:22:52,969 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:52,971 INFO L146 ILogger]: With dead ends: 427 [2019-05-23 11:22:52,971 INFO L146 ILogger]: Without dead ends: 231 [2019-05-23 11:22:52,972 INFO L146 ILogger]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:52,972 INFO L146 ILogger]: Start minimizeSevpa. Operand 231 states. [2019-05-23 11:22:52,981 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 231 to 226. [2019-05-23 11:22:52,981 INFO L146 ILogger]: Start removeUnreachable. Operand 226 states. [2019-05-23 11:22:52,982 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2019-05-23 11:22:52,982 INFO L146 ILogger]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 99 [2019-05-23 11:22:52,982 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:52,983 INFO L146 ILogger]: Abstraction has 226 states and 251 transitions. [2019-05-23 11:22:52,983 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:52,983 INFO L146 ILogger]: Start isEmpty. Operand 226 states and 251 transitions. [2019-05-23 11:22:52,984 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 107 [2019-05-23 11:22:52,984 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:52,985 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] [2019-05-23 11:22:52,985 INFO L146 ILogger]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:52,985 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:52,985 INFO L146 ILogger]: Analyzing trace with hash -1580557079, now seen corresponding path program 2 times [2019-05-23 11:22:52,986 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:52,986 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:52,986 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:52,987 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:52,987 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,005 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:53,005 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:53,005 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 11:22:53,032 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:53,059 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:22:53,060 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:53,060 INFO L146 ILogger]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:22:53,064 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:53,278 INFO L146 ILogger]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-05-23 11:22:53,310 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:53,310 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:22:53,311 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:22:53,311 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:22:53,311 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:22:53,312 INFO L146 ILogger]: Start difference. First operand 226 states and 251 transitions. Second operand 4 states. [2019-05-23 11:22:53,500 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:53,500 INFO L146 ILogger]: Finished difference Result 424 states and 480 transitions. [2019-05-23 11:22:53,501 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:22:53,501 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 106 [2019-05-23 11:22:53,501 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:53,503 INFO L146 ILogger]: With dead ends: 424 [2019-05-23 11:22:53,503 INFO L146 ILogger]: Without dead ends: 246 [2019-05-23 11:22:53,503 INFO L146 ILogger]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:22:53,504 INFO L146 ILogger]: Start minimizeSevpa. Operand 246 states. [2019-05-23 11:22:53,511 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 246 to 236. [2019-05-23 11:22:53,511 INFO L146 ILogger]: Start removeUnreachable. Operand 236 states. [2019-05-23 11:22:53,512 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 236 states to 236 states and 261 transitions. [2019-05-23 11:22:53,512 INFO L146 ILogger]: Start accepts. Automaton has 236 states and 261 transitions. Word has length 106 [2019-05-23 11:22:53,512 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:53,513 INFO L146 ILogger]: Abstraction has 236 states and 261 transitions. [2019-05-23 11:22:53,513 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:22:53,513 INFO L146 ILogger]: Start isEmpty. Operand 236 states and 261 transitions. [2019-05-23 11:22:53,514 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 122 [2019-05-23 11:22:53,514 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:53,515 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:53,515 INFO L146 ILogger]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:53,515 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:53,515 INFO L146 ILogger]: Analyzing trace with hash 459074968, now seen corresponding path program 1 times [2019-05-23 11:22:53,515 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:53,516 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:53,516 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,517 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:53,517 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:53,540 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:53,540 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:53,541 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 11:22:53,560 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:53,591 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:53,592 INFO L146 ILogger]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 11:22:53,595 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:53,677 INFO L146 ILogger]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-05-23 11:22:53,695 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:53,695 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 11:22:53,696 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 11:22:53,696 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 11:22:53,696 INFO L146 ILogger]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-05-23 11:22:53,696 INFO L146 ILogger]: Start difference. First operand 236 states and 261 transitions. Second operand 6 states. [2019-05-23 11:22:54,082 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:54,082 INFO L146 ILogger]: Finished difference Result 457 states and 513 transitions. [2019-05-23 11:22:54,082 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 11:22:54,082 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 121 [2019-05-23 11:22:54,083 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:54,084 INFO L146 ILogger]: With dead ends: 457 [2019-05-23 11:22:54,084 INFO L146 ILogger]: Without dead ends: 271 [2019-05-23 11:22:54,085 INFO L146 ILogger]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-05-23 11:22:54,085 INFO L146 ILogger]: Start minimizeSevpa. Operand 271 states. [2019-05-23 11:22:54,091 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 271 to 261. [2019-05-23 11:22:54,092 INFO L146 ILogger]: Start removeUnreachable. Operand 261 states. [2019-05-23 11:22:54,093 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2019-05-23 11:22:54,093 INFO L146 ILogger]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 121 [2019-05-23 11:22:54,093 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:54,093 INFO L146 ILogger]: Abstraction has 261 states and 286 transitions. [2019-05-23 11:22:54,093 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 11:22:54,093 INFO L146 ILogger]: Start isEmpty. Operand 261 states and 286 transitions. [2019-05-23 11:22:54,095 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 137 [2019-05-23 11:22:54,095 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:54,095 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1] [2019-05-23 11:22:54,096 INFO L146 ILogger]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:54,096 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:54,096 INFO L146 ILogger]: Analyzing trace with hash 1306409481, now seen corresponding path program 2 times [2019-05-23 11:22:54,096 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:54,096 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:54,097 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:54,097 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:54,097 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:54,119 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:54,119 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:54,120 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 11:22:54,143 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:54,169 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-05-23 11:22:54,169 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:54,170 INFO L146 ILogger]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:22:54,173 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:54,254 INFO L146 ILogger]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-05-23 11:22:54,274 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:54,274 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:22:54,275 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:22:54,275 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:22:54,275 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:22:54,276 INFO L146 ILogger]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2019-05-23 11:22:54,379 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:54,380 INFO L146 ILogger]: Finished difference Result 347 states and 381 transitions. [2019-05-23 11:22:54,380 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:22:54,380 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 136 [2019-05-23 11:22:54,380 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:54,381 INFO L146 ILogger]: With dead ends: 347 [2019-05-23 11:22:54,381 INFO L146 ILogger]: Without dead ends: 273 [2019-05-23 11:22:54,382 INFO L146 ILogger]: 0 DeclaredPredicates, 135 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:22:54,383 INFO L146 ILogger]: Start minimizeSevpa. Operand 273 states. [2019-05-23 11:22:54,390 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 273 to 263. [2019-05-23 11:22:54,390 INFO L146 ILogger]: Start removeUnreachable. Operand 263 states. [2019-05-23 11:22:54,391 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2019-05-23 11:22:54,391 INFO L146 ILogger]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 136 [2019-05-23 11:22:54,392 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:54,392 INFO L146 ILogger]: Abstraction has 263 states and 288 transitions. [2019-05-23 11:22:54,393 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:22:54,393 INFO L146 ILogger]: Start isEmpty. Operand 263 states and 288 transitions. [2019-05-23 11:22:54,394 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 144 [2019-05-23 11:22:54,394 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:54,395 INFO L146 ILogger]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:22:54,395 INFO L146 ILogger]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:54,395 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:54,395 INFO L146 ILogger]: Analyzing trace with hash 374610787, now seen corresponding path program 1 times [2019-05-23 11:22:54,396 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:54,396 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:54,396 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:54,397 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:54,397 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:54,443 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:54,443 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:54,443 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 11:22:54,464 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:54,501 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:54,502 INFO L146 ILogger]: Trace formula consists of 238 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:54,504 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:54,662 INFO L146 ILogger]: Checked inductivity of 42 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-05-23 11:22:54,681 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:54,681 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:54,682 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:54,682 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:54,684 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:54,684 INFO L146 ILogger]: Start difference. First operand 263 states and 288 transitions. Second operand 13 states. [2019-05-23 11:22:55,503 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:55,504 INFO L146 ILogger]: Finished difference Result 584 states and 637 transitions. [2019-05-23 11:22:55,505 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:55,505 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 143 [2019-05-23 11:22:55,505 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:55,520 INFO L146 ILogger]: With dead ends: 584 [2019-05-23 11:22:55,521 INFO L146 ILogger]: Without dead ends: 275 [2019-05-23 11:22:55,522 INFO L146 ILogger]: 0 DeclaredPredicates, 154 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2019-05-23 11:22:55,522 INFO L146 ILogger]: Start minimizeSevpa. Operand 275 states. [2019-05-23 11:22:55,528 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 275 to 270. [2019-05-23 11:22:55,528 INFO L146 ILogger]: Start removeUnreachable. Operand 270 states. [2019-05-23 11:22:55,529 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 270 states to 270 states and 295 transitions. [2019-05-23 11:22:55,530 INFO L146 ILogger]: Start accepts. Automaton has 270 states and 295 transitions. Word has length 143 [2019-05-23 11:22:55,530 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:55,530 INFO L146 ILogger]: Abstraction has 270 states and 295 transitions. [2019-05-23 11:22:55,531 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:55,531 INFO L146 ILogger]: Start isEmpty. Operand 270 states and 295 transitions. [2019-05-23 11:22:55,532 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 151 [2019-05-23 11:22:55,532 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:55,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:55,541 INFO L146 ILogger]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:55,541 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:55,542 INFO L146 ILogger]: Analyzing trace with hash -1611474992, now seen corresponding path program 2 times [2019-05-23 11:22:55,542 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:55,542 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:55,543 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,543 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:55,543 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:55,586 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:55,586 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:55,586 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 11:22:55,604 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:22:55,649 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:22:55,649 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:55,650 INFO L146 ILogger]: Trace formula consists of 248 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:55,652 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:55,783 INFO L146 ILogger]: Checked inductivity of 57 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-05-23 11:22:55,802 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:22:55,802 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:22:55,803 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:22:55,803 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:22:55,803 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:22:55,804 INFO L146 ILogger]: Start difference. First operand 270 states and 295 transitions. Second operand 13 states. [2019-05-23 11:22:56,540 WARN L146 ILogger]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-05-23 11:22:56,843 WARN L146 ILogger]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-05-23 11:22:57,322 WARN L146 ILogger]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-05-23 11:22:57,916 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:57,916 INFO L146 ILogger]: Finished difference Result 490 states and 538 transitions. [2019-05-23 11:22:57,917 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 11:22:57,917 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 150 [2019-05-23 11:22:57,917 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:57,920 INFO L146 ILogger]: With dead ends: 490 [2019-05-23 11:22:57,920 INFO L146 ILogger]: Without dead ends: 335 [2019-05-23 11:22:57,921 INFO L146 ILogger]: 0 DeclaredPredicates, 162 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2019-05-23 11:22:57,921 INFO L146 ILogger]: Start minimizeSevpa. Operand 335 states. [2019-05-23 11:22:57,928 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 335 to 286. [2019-05-23 11:22:57,928 INFO L146 ILogger]: Start removeUnreachable. Operand 286 states. [2019-05-23 11:22:57,929 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions. [2019-05-23 11:22:57,929 INFO L146 ILogger]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 150 [2019-05-23 11:22:57,929 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:57,930 INFO L146 ILogger]: Abstraction has 286 states and 311 transitions. [2019-05-23 11:22:57,930 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:22:57,930 INFO L146 ILogger]: Start isEmpty. Operand 286 states and 311 transitions. [2019-05-23 11:22:57,931 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 161 [2019-05-23 11:22:57,931 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:57,932 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2019-05-23 11:22:57,932 INFO L146 ILogger]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:57,932 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:57,932 INFO L146 ILogger]: Analyzing trace with hash -698291384, now seen corresponding path program 3 times [2019-05-23 11:22:57,933 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:57,933 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:57,933 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:57,934 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:57,934 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:57,951 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:57,951 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:57,951 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 11:22:57,976 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-05-23 11:22:58,020 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-05-23 11:22:58,020 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:58,021 INFO L146 ILogger]: Trace formula consists of 231 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 11:22:58,023 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:58,291 INFO L146 ILogger]: Checked inductivity of 79 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-05-23 11:22:58,311 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:22:58,312 INFO L146 ILogger]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-05-23 11:22:58,312 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 11:22:58,312 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 11:22:58,313 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-05-23 11:22:58,313 INFO L146 ILogger]: Start difference. First operand 286 states and 311 transitions. Second operand 7 states. [2019-05-23 11:22:59,524 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:22:59,524 INFO L146 ILogger]: Finished difference Result 645 states and 707 transitions. [2019-05-23 11:22:59,525 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 11:22:59,525 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 160 [2019-05-23 11:22:59,525 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:22:59,527 INFO L146 ILogger]: With dead ends: 645 [2019-05-23 11:22:59,527 INFO L146 ILogger]: Without dead ends: 434 [2019-05-23 11:22:59,528 INFO L146 ILogger]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2019-05-23 11:22:59,529 INFO L146 ILogger]: Start minimizeSevpa. Operand 434 states. [2019-05-23 11:22:59,538 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 434 to 372. [2019-05-23 11:22:59,538 INFO L146 ILogger]: Start removeUnreachable. Operand 372 states. [2019-05-23 11:22:59,539 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 372 states to 372 states and 402 transitions. [2019-05-23 11:22:59,540 INFO L146 ILogger]: Start accepts. Automaton has 372 states and 402 transitions. Word has length 160 [2019-05-23 11:22:59,540 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:22:59,540 INFO L146 ILogger]: Abstraction has 372 states and 402 transitions. [2019-05-23 11:22:59,540 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 11:22:59,540 INFO L146 ILogger]: Start isEmpty. Operand 372 states and 402 transitions. [2019-05-23 11:22:59,541 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 161 [2019-05-23 11:22:59,541 INFO L146 ILogger]: Found error trace [2019-05-23 11:22:59,542 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2019-05-23 11:22:59,542 INFO L146 ILogger]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:22:59,542 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:22:59,542 INFO L146 ILogger]: Analyzing trace with hash 2033776840, now seen corresponding path program 1 times [2019-05-23 11:22:59,542 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:22:59,543 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:22:59,543 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:59,543 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:22:59,544 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:22:59,554 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:22:59,554 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:22:59,554 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 11:22:59,579 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:22:59,617 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:22:59,618 INFO L146 ILogger]: Trace formula consists of 262 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 11:22:59,621 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:22:59,973 INFO L146 ILogger]: Checked inductivity of 79 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-05-23 11:23:00,000 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:00,001 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 11:23:00,001 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 11:23:00,001 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 11:23:00,002 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-05-23 11:23:00,002 INFO L146 ILogger]: Start difference. First operand 372 states and 402 transitions. Second operand 13 states. [2019-05-23 11:23:00,916 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:00,917 INFO L146 ILogger]: Finished difference Result 1011 states and 1108 transitions. [2019-05-23 11:23:00,917 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 11:23:00,917 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 160 [2019-05-23 11:23:00,918 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:00,922 INFO L146 ILogger]: With dead ends: 1011 [2019-05-23 11:23:00,922 INFO L146 ILogger]: Without dead ends: 732 [2019-05-23 11:23:00,924 INFO L146 ILogger]: 0 DeclaredPredicates, 176 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2019-05-23 11:23:00,925 INFO L146 ILogger]: Start minimizeSevpa. Operand 732 states. [2019-05-23 11:23:00,940 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 732 to 602. [2019-05-23 11:23:00,940 INFO L146 ILogger]: Start removeUnreachable. Operand 602 states. [2019-05-23 11:23:00,942 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 602 states to 602 states and 650 transitions. [2019-05-23 11:23:00,942 INFO L146 ILogger]: Start accepts. Automaton has 602 states and 650 transitions. Word has length 160 [2019-05-23 11:23:00,942 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:00,943 INFO L146 ILogger]: Abstraction has 602 states and 650 transitions. [2019-05-23 11:23:00,943 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 11:23:00,943 INFO L146 ILogger]: Start isEmpty. Operand 602 states and 650 transitions. [2019-05-23 11:23:00,944 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 166 [2019-05-23 11:23:00,945 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:00,945 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:00,945 INFO L146 ILogger]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:00,945 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:00,946 INFO L146 ILogger]: Analyzing trace with hash -377030061, now seen corresponding path program 2 times [2019-05-23 11:23:00,946 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:00,946 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:00,947 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:00,947 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:00,947 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:00,957 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:23:00,958 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:23:00,958 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 11:23:00,974 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:23:01,020 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:23:01,020 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:01,022 INFO L146 ILogger]: Trace formula consists of 269 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 11:23:01,025 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:01,204 INFO L146 ILogger]: Checked inductivity of 95 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-05-23 11:23:01,224 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:01,225 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 11:23:01,225 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 11:23:01,226 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 11:23:01,226 INFO L146 ILogger]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2019-05-23 11:23:01,227 INFO L146 ILogger]: Start difference. First operand 602 states and 650 transitions. Second operand 17 states. [2019-05-23 11:23:02,481 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:02,481 INFO L146 ILogger]: Finished difference Result 1070 states and 1152 transitions. [2019-05-23 11:23:02,482 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-05-23 11:23:02,482 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 165 [2019-05-23 11:23:02,482 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:02,486 INFO L146 ILogger]: With dead ends: 1070 [2019-05-23 11:23:02,486 INFO L146 ILogger]: Without dead ends: 676 [2019-05-23 11:23:02,487 INFO L146 ILogger]: 0 DeclaredPredicates, 185 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 11:23:02,488 INFO L146 ILogger]: Start minimizeSevpa. Operand 676 states. [2019-05-23 11:23:02,502 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 676 to 595. [2019-05-23 11:23:02,502 INFO L146 ILogger]: Start removeUnreachable. Operand 595 states. [2019-05-23 11:23:02,504 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 595 states to 595 states and 633 transitions. [2019-05-23 11:23:02,504 INFO L146 ILogger]: Start accepts. Automaton has 595 states and 633 transitions. Word has length 165 [2019-05-23 11:23:02,504 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:02,504 INFO L146 ILogger]: Abstraction has 595 states and 633 transitions. [2019-05-23 11:23:02,505 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 11:23:02,505 INFO L146 ILogger]: Start isEmpty. Operand 595 states and 633 transitions. [2019-05-23 11:23:02,506 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 169 [2019-05-23 11:23:02,506 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:02,507 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:02,507 INFO L146 ILogger]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:02,507 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:02,508 INFO L146 ILogger]: Analyzing trace with hash 504357088, now seen corresponding path program 1 times [2019-05-23 11:23:02,508 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:02,508 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:02,509 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:02,509 INFO L146 ILogger]: Changing assertion order to NOT_INCREMENTALLY [2019-05-23 11:23:02,509 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:02,519 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:23:02,520 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:23:02,520 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 11:23:02,535 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:02,579 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:02,580 INFO L146 ILogger]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 11:23:02,583 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:02,728 INFO L146 ILogger]: Checked inductivity of 79 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-05-23 11:23:02,775 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:23:02,776 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:23:02,776 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:23:02,777 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:23:02,777 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:23:02,777 INFO L146 ILogger]: Start difference. First operand 595 states and 633 transitions. Second operand 4 states. [2019-05-23 11:23:02,990 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:02,991 INFO L146 ILogger]: Finished difference Result 803 states and 850 transitions. [2019-05-23 11:23:02,991 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:23:02,991 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 168 [2019-05-23 11:23:02,992 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:02,993 INFO L146 ILogger]: With dead ends: 803 [2019-05-23 11:23:02,993 INFO L146 ILogger]: Without dead ends: 441 [2019-05-23 11:23:02,994 INFO L146 ILogger]: 0 DeclaredPredicates, 167 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:23:02,995 INFO L146 ILogger]: Start minimizeSevpa. Operand 441 states. [2019-05-23 11:23:03,004 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 441 to 397. [2019-05-23 11:23:03,004 INFO L146 ILogger]: Start removeUnreachable. Operand 397 states. [2019-05-23 11:23:03,005 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 397 states to 397 states and 417 transitions. [2019-05-23 11:23:03,006 INFO L146 ILogger]: Start accepts. Automaton has 397 states and 417 transitions. Word has length 168 [2019-05-23 11:23:03,006 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:03,006 INFO L146 ILogger]: Abstraction has 397 states and 417 transitions. [2019-05-23 11:23:03,006 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:23:03,006 INFO L146 ILogger]: Start isEmpty. Operand 397 states and 417 transitions. [2019-05-23 11:23:03,007 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 169 [2019-05-23 11:23:03,007 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:03,008 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:03,008 INFO L146 ILogger]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:03,008 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:03,008 INFO L146 ILogger]: Analyzing trace with hash -1636833152, now seen corresponding path program 1 times [2019-05-23 11:23:03,008 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:03,009 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:03,009 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:03,009 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:03,010 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:03,019 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:23:03,019 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:23:03,019 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 11:23:03,039 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:03,079 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:23:03,080 INFO L146 ILogger]: Trace formula consists of 274 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 11:23:03,082 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 11:23:03,208 INFO L146 ILogger]: Checked inductivity of 79 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-05-23 11:23:03,228 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 11:23:03,229 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 11:23:03,229 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 11:23:03,229 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 11:23:03,229 INFO L146 ILogger]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-05-23 11:23:03,230 INFO L146 ILogger]: Start difference. First operand 397 states and 417 transitions. Second operand 11 states. [2019-05-23 11:23:03,523 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:23:03,523 INFO L146 ILogger]: Finished difference Result 545 states and 573 transitions. [2019-05-23 11:23:03,526 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 11:23:03,526 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 168 [2019-05-23 11:23:03,526 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:23:03,528 INFO L146 ILogger]: With dead ends: 545 [2019-05-23 11:23:03,528 INFO L146 ILogger]: Without dead ends: 433 [2019-05-23 11:23:03,529 INFO L146 ILogger]: 0 DeclaredPredicates, 177 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2019-05-23 11:23:03,530 INFO L146 ILogger]: Start minimizeSevpa. Operand 433 states. [2019-05-23 11:23:03,542 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 433 to 418. [2019-05-23 11:23:03,542 INFO L146 ILogger]: Start removeUnreachable. Operand 418 states. [2019-05-23 11:23:03,544 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 418 states to 418 states and 438 transitions. [2019-05-23 11:23:03,544 INFO L146 ILogger]: Start accepts. Automaton has 418 states and 438 transitions. Word has length 168 [2019-05-23 11:23:03,545 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:23:03,545 INFO L146 ILogger]: Abstraction has 418 states and 438 transitions. [2019-05-23 11:23:03,545 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 11:23:03,545 INFO L146 ILogger]: Start isEmpty. Operand 418 states and 438 transitions. [2019-05-23 11:23:03,546 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 176 [2019-05-23 11:23:03,546 INFO L146 ILogger]: Found error trace [2019-05-23 11:23:03,547 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:23:03,547 INFO L146 ILogger]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:23:03,547 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:23:03,547 INFO L146 ILogger]: Analyzing trace with hash -2033284852, now seen corresponding path program 2 times [2019-05-23 11:23:03,559 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:23:03,560 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:23:03,561 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:03,561 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:23:03,561 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:23:03,578 ERROR L146 ILogger]: Caught known exception: Unsupported non-linear arithmetic [2019-05-23 11:23:03,578 INFO L146 ILogger]: Advancing trace checker [2019-05-23 11:23:03,578 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 11:23:03,594 INFO L146 ILogger]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-05-23 11:23:03,717 INFO L146 ILogger]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-05-23 11:23:03,718 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:23:03,769 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:23:03,972 INFO L146 ILogger]: Counterexample might be feasible [2019-05-23 11:23:04,073 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 11:23:04 BoogieIcfgContainer [2019-05-23 11:23:04,074 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 11:23:04,075 INFO L146 ILogger]: Toolchain (without parser) took 15611.19 ms. Allocated memory was 140.0 MB in the beginning and 360.2 MB in the end (delta: 220.2 MB). Free memory was 88.9 MB in the beginning and 288.6 MB in the end (delta: -199.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,076 INFO L146 ILogger]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 107.6 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,077 INFO L146 ILogger]: CACSL2BoogieTranslator took 349.21 ms. Allocated memory is still 140.0 MB. Free memory was 88.7 MB in the beginning and 78.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,077 INFO L146 ILogger]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 140.0 MB. Free memory was 78.3 MB in the beginning and 76.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,078 INFO L146 ILogger]: Boogie Preprocessor took 130.14 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 76.2 MB in the beginning and 177.6 MB in the end (delta: -101.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,079 INFO L146 ILogger]: RCFGBuilder took 825.37 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 150.4 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,080 INFO L146 ILogger]: TraceAbstraction took 14253.60 ms. Allocated memory was 201.3 MB in the beginning and 360.2 MB in the end (delta: 158.9 MB). Free memory was 150.4 MB in the beginning and 288.6 MB in the end (delta: -138.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-05-23 11:23:04,084 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 107.6 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 349.21 ms. Allocated memory is still 140.0 MB. Free memory was 88.7 MB in the beginning and 78.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 140.0 MB. Free memory was 78.3 MB in the beginning and 76.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.14 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 76.2 MB in the beginning and 177.6 MB in the end (delta: -101.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 825.37 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 150.4 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14253.60 ms. Allocated memory was 201.3 MB in the beginning and 360.2 MB in the end (delta: 158.9 MB). Free memory was 150.4 MB in the beginning and 288.6 MB in the end (delta: -138.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 53]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int N; VAL [N=0] [L32] N = __VERIFIER_nondet_int() VAL [N=3] [L33] COND TRUE N > 1 VAL [N=3] [L34] int x[N]; VAL [N=3] [L6] int i; VAL [N=3] [L7] i = 0 VAL [N=3] [L7] COND TRUE i < N VAL [N=3] [L8] x[i] = __VERIFIER_nondet_int() VAL [N=3] [L7] i++ VAL [N=3] [L7] COND TRUE i < N VAL [N=3] [L8] x[i] = __VERIFIER_nondet_int() VAL [N=3] [L7] i++ VAL [N=3] [L7] COND TRUE i < N VAL [N=3] [L8] x[i] = __VERIFIER_nondet_int() VAL [N=3] [L7] i++ VAL [N=3] [L7] COND FALSE !(i < N) VAL [N=3] [L36] int temp; VAL [N=3] [L37] int ret; VAL [N=3] [L38] int ret2; VAL [N=3] [L39] int ret5; VAL [N=3] [L14] int i; VAL [N=3] [L15] long long ret; VAL [N=3] [L16] ret = 0 VAL [N=3] [L17] int cnt = 0; VAL [N=3] [L18] i = 0 VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND FALSE !(i > N/2) VAL [N=3] [L18] i++ VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND FALSE !(i > N/2) VAL [N=3] [L18] i++ VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND TRUE i > N/2 VAL [N=3] [L20] EXPR x[i] VAL [N=3] [L20] ret = ret + x[i] VAL [N=3] [L21] cnt = cnt + 1 VAL [N=3] [L18] i++ VAL [N=3] [L18] COND FALSE !(i < N) VAL [N=3] [L24] COND TRUE cnt !=0 VAL [N=3] [L25] return ret / cnt; VAL [N=3] [L41] ret = rangesum(x) VAL [N=3] [L43] EXPR x[0] VAL [N=3] [L43] temp=x[0] VAL [N=3] [L43] EXPR x[1] VAL [N=3] [L43] x[0] = x[1] VAL [N=3] [L43] x[1] = temp VAL [N=3] [L14] int i; VAL [N=3] [L15] long long ret; VAL [N=3] [L16] ret = 0 VAL [N=3] [L17] int cnt = 0; VAL [N=3] [L18] i = 0 VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND FALSE !(i > N/2) VAL [N=3] [L18] i++ VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND FALSE !(i > N/2) VAL [N=3] [L18] i++ VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND TRUE i > N/2 VAL [N=3] [L20] EXPR x[i] VAL [N=3] [L20] ret = ret + x[i] VAL [N=3] [L21] cnt = cnt + 1 VAL [N=3] [L18] i++ VAL [N=3] [L18] COND FALSE !(i < N) VAL [N=3] [L24] COND TRUE cnt !=0 VAL [N=3] [L25] return ret / cnt; VAL [N=3] [L44] ret2 = rangesum(x) VAL [N=3] [L45] EXPR x[0] VAL [N=3] [L45] temp=x[0] VAL [N=3] [L46] int i =0 ; VAL [N=3] [L46] COND TRUE i N/2) VAL [N=3] [L18] i++ VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND FALSE !(i > N/2) VAL [N=3] [L18] i++ VAL [N=3] [L18] COND TRUE i < N VAL [N=3] [L19] COND TRUE i > N/2 VAL [N=3] [L20] EXPR x[i] VAL [N=3] [L20] ret = ret + x[i] VAL [N=3] [L21] cnt = cnt + 1 VAL [N=3] [L18] i++ VAL [N=3] [L18] COND FALSE !(i < N) VAL [N=3] [L24] COND TRUE cnt !=0 VAL [N=3] [L25] return ret / cnt; VAL [N=3] [L50] ret5 = rangesum(x) VAL [N=3] [L52] COND TRUE ret != ret2 || ret !=ret5 VAL [N=3] [L53] __VERIFIER_error() VAL [N=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. UNSAFE Result, 14.1s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 9.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1920 SDtfs, 2976 SDslu, 6403 SDs, 0 SdLazy, 2800 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1846 GetRequests, 1668 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=602occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 569 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2092 NumberOfCodeBlocks, 1994 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1902 ConstructedInterpolants, 0 QuantifiedInterpolants, 573667 SizeOfPredicates, 77 NumberOfNonLiveVariables, 2801 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 481/582 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...