java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/divmul_diverge_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 15:40:42,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 15:40:42,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 15:40:42,608 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 15:40:42,608 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 15:40:42,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 15:40:42,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 15:40:42,612 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 15:40:42,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 15:40:42,615 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 15:40:42,616 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 15:40:42,616 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 15:40:42,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 15:40:42,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 15:40:42,620 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 15:40:42,621 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 15:40:42,621 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 15:40:42,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 15:40:42,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 15:40:42,627 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 15:40:42,628 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 15:40:42,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 15:40:42,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 15:40:42,633 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 15:40:42,633 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 15:40:42,634 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 15:40:42,635 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 15:40:42,636 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 15:40:42,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 15:40:42,638 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 15:40:42,638 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 15:40:42,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 15:40:42,639 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 15:40:42,639 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 15:40:42,640 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 15:40:42,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 15:40:42,641 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 15:40:42,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 15:40:42,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 15:40:42,676 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 15:40:42,676 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 15:40:42,677 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 15:40:42,677 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 15:40:42,678 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 15:40:42,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 15:40:42,679 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 15:40:42,679 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 15:40:42,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 15:40:42,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 15:40:42,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 15:40:42,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 15:40:42,680 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 15:40:42,680 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 15:40:42,682 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 15:40:42,682 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 15:40:42,682 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 15:40:42,683 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 15:40:42,683 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 15:40:42,683 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 15:40:42,683 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 15:40:42,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:40:42,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 15:40:42,684 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 15:40:42,684 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 15:40:42,684 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 15:40:42,684 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 15:40:42,684 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 15:40:42,685 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 15:40:42,685 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 15:40:42,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 15:40:42,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 15:40:42,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 15:40:42,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 15:40:42,778 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 15:40:42,779 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/divmul_diverge_true-unreach-call_true-termination.c [2018-09-19 15:40:43,122 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75b31e492/b21ac15d9dcc4c8a969a0a9efd0bdbfa/FLAGb8866271a [2018-09-19 15:40:43,326 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 15:40:43,327 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/divmul_diverge_true-unreach-call_true-termination.c [2018-09-19 15:40:43,336 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75b31e492/b21ac15d9dcc4c8a969a0a9efd0bdbfa/FLAGb8866271a [2018-09-19 15:40:43,360 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75b31e492/b21ac15d9dcc4c8a969a0a9efd0bdbfa [2018-09-19 15:40:43,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 15:40:43,376 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 15:40:43,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 15:40:43,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 15:40:43,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 15:40:43,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f627a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43, skipping insertion in model container [2018-09-19 15:40:43,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,404 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 15:40:43,621 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:40:43,644 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 15:40:43,650 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:40:43,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43 WrapperNode [2018-09-19 15:40:43,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 15:40:43,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 15:40:43,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 15:40:43,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 15:40:43,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... [2018-09-19 15:40:43,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 15:40:43,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 15:40:43,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 15:40:43,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 15:40:43,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:40:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 15:40:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 15:40:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 15:40:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_clock [2018-09-19 15:40:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 15:40:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 15:40:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-09-19 15:40:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 15:40:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-19 15:40:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 15:40:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_clock [2018-09-19 15:40:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 15:40:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 15:40:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 15:40:44,645 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 15:40:44,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:40:44 BoogieIcfgContainer [2018-09-19 15:40:44,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 15:40:44,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 15:40:44,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 15:40:44,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 15:40:44,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:40:43" (1/3) ... [2018-09-19 15:40:44,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5799e15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:40:44, skipping insertion in model container [2018-09-19 15:40:44,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:40:43" (2/3) ... [2018-09-19 15:40:44,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5799e15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:40:44, skipping insertion in model container [2018-09-19 15:40:44,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:40:44" (3/3) ... [2018-09-19 15:40:44,655 INFO L112 eAbstractionObserver]: Analyzing ICFG divmul_diverge_true-unreach-call_true-termination.c [2018-09-19 15:40:44,675 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 15:40:44,692 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 15:40:44,764 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 15:40:44,765 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 15:40:44,765 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 15:40:44,765 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 15:40:44,765 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 15:40:44,765 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 15:40:44,767 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 15:40:44,767 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 15:40:44,767 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 15:40:44,793 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-19 15:40:44,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 15:40:44,802 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:40:44,803 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:40:44,806 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:40:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash -777563617, now seen corresponding path program 1 times [2018-09-19 15:40:44,818 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:40:44,820 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 15:40:44,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 15:40:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:40:44,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:40:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:40:44,936 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:40:44,950 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:40:44,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 15:40:44,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 15:40:44,969 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 15:40:44,971 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 15:40:44,974 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-09-19 15:40:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:40:44,999 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-09-19 15:40:45,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 15:40:45,001 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-19 15:40:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:40:45,013 INFO L225 Difference]: With dead ends: 37 [2018-09-19 15:40:45,014 INFO L226 Difference]: Without dead ends: 18 [2018-09-19 15:40:45,018 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 15:40:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-19 15:40:45,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-19 15:40:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-19 15:40:45,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-19 15:40:45,062 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2018-09-19 15:40:45,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:40:45,062 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-19 15:40:45,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 15:40:45,063 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-19 15:40:45,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 15:40:45,063 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:40:45,064 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:40:45,064 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:40:45,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1145892864, now seen corresponding path program 1 times [2018-09-19 15:40:45,065 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:40:45,065 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 15:40:45,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 15:40:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:40:45,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:40:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:40:45,135 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:40:45,145 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:40:45,145 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 15:40:45,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 15:40:45,147 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 15:40:45,147 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 15:40:45,148 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2018-09-19 15:40:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:40:45,195 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-09-19 15:40:45,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 15:40:45,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-19 15:40:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:40:45,199 INFO L225 Difference]: With dead ends: 29 [2018-09-19 15:40:45,199 INFO L226 Difference]: Without dead ends: 24 [2018-09-19 15:40:45,200 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 15:40:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-19 15:40:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-09-19 15:40:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-19 15:40:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-09-19 15:40:45,212 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2018-09-19 15:40:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:40:45,213 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-09-19 15:40:45,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 15:40:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-09-19 15:40:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 15:40:45,214 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:40:45,214 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:40:45,214 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:40:45,215 INFO L82 PathProgramCache]: Analyzing trace with hash 801798500, now seen corresponding path program 1 times [2018-09-19 15:40:45,215 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:40:45,216 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 15:40:45,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 15:40:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:40:45,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:40:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:40:45,418 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-19 15:40:45,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:40:45,534 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-19 15:40:45,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-19 15:40:45,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 15:40:45,537 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 15:40:45,537 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 15:40:45,539 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2018-09-19 15:40:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:40:45,790 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-09-19 15:40:45,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 15:40:45,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-09-19 15:40:45,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:40:45,796 INFO L225 Difference]: With dead ends: 43 [2018-09-19 15:40:45,797 INFO L226 Difference]: Without dead ends: 38 [2018-09-19 15:40:45,797 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-09-19 15:40:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-19 15:40:45,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-09-19 15:40:45,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-09-19 15:40:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-09-19 15:40:45,819 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-09-19 15:40:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:40:45,819 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-09-19 15:40:45,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 15:40:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-09-19 15:40:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 15:40:45,822 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:40:45,824 INFO L376 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:40:45,824 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:40:45,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1801372272, now seen corresponding path program 2 times [2018-09-19 15:40:45,825 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:40:45,825 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-19 15:40:45,834 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-09-19 15:40:46,336 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-19 15:40:46,337 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-19 15:40:46,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:40:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-19 15:40:46,498 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-19 15:40:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-19 15:40:47,052 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-19 15:40:47,052 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-09-19 15:40:47,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 15:40:47,053 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 15:40:47,054 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-19 15:40:47,054 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 12 states. [2018-09-19 15:40:47,591 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2018-09-19 15:40:47,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:40:47,925 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2018-09-19 15:40:47,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 15:40:47,926 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-09-19 15:40:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:40:47,929 INFO L225 Difference]: With dead ends: 79 [2018-09-19 15:40:47,929 INFO L226 Difference]: Without dead ends: 74 [2018-09-19 15:40:47,930 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2018-09-19 15:40:47,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-09-19 15:40:47,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-09-19 15:40:47,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-19 15:40:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2018-09-19 15:40:47,947 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 43 [2018-09-19 15:40:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:40:47,948 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2018-09-19 15:40:47,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 15:40:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2018-09-19 15:40:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-19 15:40:47,952 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:40:47,952 INFO L376 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:40:47,952 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:40:47,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1897822696, now seen corresponding path program 3 times [2018-09-19 15:40:47,954 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:40:47,954 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 15:40:47,959 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-09-19 15:40:48,188 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-09-19 15:40:48,189 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-19 15:40:48,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:40:50,329 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_21 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_21 .cse0) (= c_main_~x~0 (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_21 .cse1) .cse1))) (fp.geq v_main_~x~0_21 (fp.neg .cse0))))) is different from false [2018-09-19 15:40:52,367 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_21 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_21 .cse0) (= c_main_~x~0 (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_21 .cse1) .cse1))) (fp.geq v_main_~x~0_21 (fp.neg .cse0))))) is different from true [2018-09-19 15:41:05,757 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((v_main_~x~0_21 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_21 .cse0) (fp.geq v_main_~x~0_21 (fp.neg .cse0)) (not (fp.geq (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_21 .cse1) .cse1)) (fp.neg ((_ to_fp 8 24) RNE 1000.0))))))) .cse2) (and (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse3 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_prenex_2 .cse3) .cse3)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_prenex_2 .cse4) (fp.geq v_prenex_2 (fp.neg .cse4))))) .cse2))) is different from false [2018-09-19 15:41:16,036 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_prenex_2 .cse1) .cse1)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_prenex_2 .cse2) (fp.geq v_prenex_2 (fp.neg .cse2)))))) (and .cse0 (exists ((v_main_~x~0_21 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_21 .cse3) (fp.geq v_main_~x~0_21 (fp.neg .cse3)) (not (fp.geq (let ((.cse4 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_21 .cse4) .cse4)) (fp.neg ((_ to_fp 8 24) RNE 1000.0)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-09-19 15:41:26,303 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_main_~x~0_21 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_21 .cse0) (fp.geq v_main_~x~0_21 (fp.neg .cse0)) (not (fp.geq (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_21 .cse1) .cse1)) (fp.neg ((_ to_fp 8 24) RNE 1000.0))))))) (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_prenex_2 .cse2) .cse2)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_prenex_2 .cse3) (fp.geq v_prenex_2 (fp.neg .cse3)))))) is different from false [2018-09-19 15:41:28,345 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_main_~x~0_21 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_21 .cse0) (fp.geq v_main_~x~0_21 (fp.neg .cse0)) (not (fp.geq (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_21 .cse1) .cse1)) (fp.neg ((_ to_fp 8 24) RNE 1000.0))))))) (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_prenex_2 .cse2) .cse2)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_prenex_2 .cse3) (fp.geq v_prenex_2 (fp.neg .cse3)))))) is different from true [2018-09-19 15:41:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2018-09-19 15:41:28,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:41:28,386 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:41:28,386 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 15:41:28,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 15:41:28,387 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 15:41:28,387 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-09-19 15:41:28,388 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 7 states. [2018-09-19 15:41:31,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:41:31,596 INFO L93 Difference]: Finished difference Result 124 states and 152 transitions. [2018-09-19 15:41:31,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 15:41:31,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2018-09-19 15:41:31,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:41:31,640 INFO L225 Difference]: With dead ends: 124 [2018-09-19 15:41:31,641 INFO L226 Difference]: Without dead ends: 119 [2018-09-19 15:41:31,641 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-09-19 15:41:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-09-19 15:41:31,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 74. [2018-09-19 15:41:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-19 15:41:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2018-09-19 15:41:31,667 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 91 [2018-09-19 15:41:31,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:41:31,668 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2018-09-19 15:41:31,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 15:41:31,669 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2018-09-19 15:41:31,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-09-19 15:41:31,671 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:41:31,671 INFO L376 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:41:31,671 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:41:31,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2138979162, now seen corresponding path program 1 times [2018-09-19 15:41:31,672 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:41:31,672 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 15:41:31,678 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-19 15:41:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:41:32,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:41:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-09-19 15:41:33,102 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-19 15:41:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-09-19 15:41:33,767 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-19 15:41:33,767 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-09-19 15:41:33,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-09-19 15:41:33,768 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-09-19 15:41:33,769 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2018-09-19 15:41:33,770 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 24 states. [2018-09-19 15:41:36,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:41:36,106 INFO L93 Difference]: Finished difference Result 216 states and 283 transitions. [2018-09-19 15:41:36,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 15:41:36,107 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 91 [2018-09-19 15:41:36,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:41:36,111 INFO L225 Difference]: With dead ends: 216 [2018-09-19 15:41:36,111 INFO L226 Difference]: Without dead ends: 211 [2018-09-19 15:41:36,113 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2018-09-19 15:41:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-09-19 15:41:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 146. [2018-09-19 15:41:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-09-19 15:41:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 189 transitions. [2018-09-19 15:41:36,156 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 189 transitions. Word has length 91 [2018-09-19 15:41:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:41:36,157 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 189 transitions. [2018-09-19 15:41:36,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-09-19 15:41:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 189 transitions. [2018-09-19 15:41:36,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-09-19 15:41:36,162 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:41:36,162 INFO L376 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:41:36,162 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:41:36,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1040911702, now seen corresponding path program 2 times [2018-09-19 15:41:36,163 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:41:36,164 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 15:41:36,168 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-09-19 15:41:38,454 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-19 15:41:38,455 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-19 15:41:38,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:41:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2018-09-19 15:41:39,547 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-19 15:41:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2018-09-19 15:41:41,845 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-19 15:41:41,845 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2018-09-19 15:41:41,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-09-19 15:41:41,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-09-19 15:41:41,849 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2018-09-19 15:41:41,849 INFO L87 Difference]: Start difference. First operand 146 states and 189 transitions. Second operand 48 states. [2018-09-19 15:41:44,266 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 7 [2018-09-19 15:41:44,840 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 7 [2018-09-19 15:41:45,457 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 7 [2018-09-19 15:41:46,120 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 7 [2018-09-19 15:41:49,016 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 7 [2018-09-19 15:41:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:41:56,406 INFO L93 Difference]: Finished difference Result 420 states and 559 transitions. [2018-09-19 15:41:56,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-09-19 15:41:56,407 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 187 [2018-09-19 15:41:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:41:56,413 INFO L225 Difference]: With dead ends: 420 [2018-09-19 15:41:56,413 INFO L226 Difference]: Without dead ends: 415 [2018-09-19 15:41:56,416 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2018-09-19 15:41:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2018-09-19 15:41:56,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 290. [2018-09-19 15:41:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-09-19 15:41:56,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 381 transitions. [2018-09-19 15:41:56,491 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 381 transitions. Word has length 187 [2018-09-19 15:41:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:41:56,492 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 381 transitions. [2018-09-19 15:41:56,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-09-19 15:41:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 381 transitions. [2018-09-19 15:41:56,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-09-19 15:41:56,501 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:41:56,502 INFO L376 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:41:56,502 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:41:56,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1977147062, now seen corresponding path program 3 times [2018-09-19 15:41:56,503 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:41:56,503 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-19 15:41:56,516 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-09-19 15:41:57,616 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-09-19 15:41:57,616 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-19 15:41:57,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:42:01,756 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_86 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_86 .cse0) (fp.geq v_main_~x~0_86 (fp.neg .cse0)) (= c_main_~x~0 (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE v_main_~x~0_86 .cse1) .cse1)))))) is different from true [2018-09-19 15:42:05,269 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_86 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) RNE 100.0))) (and (fp.leq v_main_~x~0_86 .cse0) (= (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_86 .cse1) .cse1) .cse1) .cse1)) c_main_~x~0) (fp.geq v_main_~x~0_86 (fp.neg .cse0))))) is different from true [2018-09-19 15:42:22,081 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((v_main_~x~0_86 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_86 .cse1) .cse1) .cse1) .cse1)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_main_~x~0_86 .cse2) (fp.geq v_main_~x~0_86 (fp.neg .cse2)))))) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_5 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0)) (.cse4 (let ((.cse6 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_5 .cse6) .cse6) .cse6) .cse6))) (.cse5 ((_ to_fp 8 24) RNE 1000.0))) (and (fp.leq v_prenex_5 .cse3) (fp.geq .cse4 (fp.neg .cse5)) (fp.geq v_prenex_5 (fp.neg .cse3)) (fp.leq .cse4 .cse5))))) (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (let ((.cse8 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.geq (let ((.cse7 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_3 .cse7) .cse7) .cse7) .cse7)) (fp.neg ((_ to_fp 8 24) RNE 1000.0)))) (fp.leq v_prenex_3 .cse8) (fp.geq v_prenex_3 (fp.neg .cse8)))))))) is different from false [2018-09-19 15:42:36,830 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.geq (let ((.cse1 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_3 .cse1) .cse1) .cse1) .cse1)) (fp.neg ((_ to_fp 8 24) RNE 1000.0)))) (fp.leq v_prenex_3 .cse2) (fp.geq v_prenex_3 (fp.neg .cse2)))))) (and (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_5 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0)) (.cse4 (let ((.cse6 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_5 .cse6) .cse6) .cse6) .cse6))) (.cse5 ((_ to_fp 8 24) RNE 1000.0))) (and (fp.leq v_prenex_5 .cse3) (fp.geq .cse4 (fp.neg .cse5)) (fp.geq v_prenex_5 (fp.neg .cse3)) (fp.leq .cse4 .cse5))))) (and .cse0 (exists ((v_main_~x~0_86 (_ FloatingPoint 8 24))) (let ((.cse8 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse7 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_86 .cse7) .cse7) .cse7) .cse7)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_main_~x~0_86 .cse8) (fp.geq v_main_~x~0_86 (fp.neg .cse8)))))))) is different from false [2018-09-19 15:42:47,315 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_main_~x~0_86 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse0 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_86 .cse0) .cse0) .cse0) .cse0)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_main_~x~0_86 .cse1) (fp.geq v_main_~x~0_86 (fp.neg .cse1))))) (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.geq (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_3 .cse2) .cse2) .cse2) .cse2)) (fp.neg ((_ to_fp 8 24) RNE 1000.0)))) (fp.leq v_prenex_3 .cse3) (fp.geq v_prenex_3 (fp.neg .cse3)))))) is different from false [2018-09-19 15:42:49,393 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_main_~x~0_86 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.leq (let ((.cse0 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_86 .cse0) .cse0) .cse0) .cse0)) ((_ to_fp 8 24) RNE 1000.0))) (fp.leq v_main_~x~0_86 .cse1) (fp.geq v_main_~x~0_86 (fp.neg .cse1))))) (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (and (not (fp.geq (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_3 .cse2) .cse2) .cse2) .cse2)) (fp.neg ((_ to_fp 8 24) RNE 1000.0)))) (fp.leq v_prenex_3 .cse3) (fp.geq v_prenex_3 (fp.neg .cse3)))))) is different from true [2018-09-19 15:42:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 7878 trivial. 5 not checked. [2018-09-19 15:42:49,545 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-19 15:43:10,115 WARN L178 SmtUtils]: Spent 6.52 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-19 15:43:12,245 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE c_main_~x~0 .cse2) .cse2) .cse2) .cse2))) (.cse1 ((_ to_fp 8 24) RNE 1000.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2018-09-19 15:43:14,325 WARN L819 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE c_main_~x~0 .cse2) .cse2) .cse2) .cse2))) (.cse1 ((_ to_fp 8 24) RNE 1000.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2018-09-19 15:43:26,820 WARN L797 $PredicateComparison]: unable to prove that (and (forall ((v_main_~x~0_90 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 100.0))) (or (fp.geq (let ((.cse0 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_90 .cse0) .cse0) .cse0) .cse0)) (fp.neg ((_ to_fp 8 24) RNE 1000.0))) (not (fp.geq v_main_~x~0_90 (fp.neg .cse1))) (not (fp.leq v_main_~x~0_90 .cse1))))) (forall ((v_prenex_7 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (or (fp.leq (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_7 .cse2) .cse2) .cse2) .cse2)) ((_ to_fp 8 24) RNE 1000.0)) (not (fp.geq v_prenex_7 (fp.neg .cse3))) (not (fp.leq v_prenex_7 .cse3)))))) is different from false [2018-09-19 15:43:28,972 WARN L819 $PredicateComparison]: unable to prove that (and (forall ((v_main_~x~0_90 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 100.0))) (or (fp.geq (let ((.cse0 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_main_~x~0_90 .cse0) .cse0) .cse0) .cse0)) (fp.neg ((_ to_fp 8 24) RNE 1000.0))) (not (fp.geq v_main_~x~0_90 (fp.neg .cse1))) (not (fp.leq v_main_~x~0_90 .cse1))))) (forall ((v_prenex_7 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) RNE 100.0))) (or (fp.leq (let ((.cse2 ((_ to_fp 8 24) RNE (/ 31.0 10.0)))) (fp.mul RNE (fp.div RNE (fp.mul RNE (fp.div RNE v_prenex_7 .cse2) .cse2) .cse2) .cse2)) ((_ to_fp 8 24) RNE 1000.0)) (not (fp.geq v_prenex_7 (fp.neg .cse3))) (not (fp.leq v_prenex_7 .cse3)))))) is different from true [2018-09-19 15:44:02,352 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-19 15:44:02,353 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-19 15:44:02,361 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown