/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 23:13:24,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 23:13:24,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 23:13:24,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 23:13:24,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 23:13:24,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 23:13:24,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 23:13:24,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 23:13:24,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 23:13:24,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 23:13:24,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 23:13:24,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 23:13:24,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 23:13:24,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 23:13:24,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 23:13:24,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 23:13:24,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 23:13:24,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 23:13:24,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 23:13:24,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 23:13:24,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 23:13:24,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 23:13:24,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 23:13:24,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 23:13:24,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 23:13:24,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 23:13:24,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 23:13:24,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 23:13:24,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 23:13:24,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 23:13:24,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 23:13:24,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 23:13:24,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 23:13:24,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 23:13:24,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 23:13:24,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 23:13:24,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 23:13:24,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 23:13:24,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 23:13:24,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 23:13:24,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 23:13:24,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 23:13:24,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 23:13:24,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 23:13:24,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 23:13:24,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 23:13:24,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 23:13:24,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 23:13:24,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 23:13:24,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 23:13:24,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 23:13:24,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 23:13:24,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 23:13:24,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 23:13:24,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 23:13:24,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 23:13:24,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 23:13:24,866 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 23:13:24,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 23:13:24,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 23:13:24,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 23:13:24,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 23:13:24,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 23:13:24,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 23:13:24,868 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 23:13:25,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 23:13:25,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 23:13:25,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 23:13:25,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 23:13:25,310 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 23:13:25,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-08-22 23:13:25,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93d8e20cb/76b9b49af2544a15aa7197d20bf56121/FLAGd016f6c57 [2020-08-22 23:13:26,181 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 23:13:26,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2020-08-22 23:13:26,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93d8e20cb/76b9b49af2544a15aa7197d20bf56121/FLAGd016f6c57 [2020-08-22 23:13:26,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93d8e20cb/76b9b49af2544a15aa7197d20bf56121 [2020-08-22 23:13:26,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 23:13:26,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 23:13:26,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 23:13:26,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 23:13:26,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 23:13:26,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b9182a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26, skipping insertion in model container [2020-08-22 23:13:26,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 23:13:26,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 23:13:26,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:13:26,526 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 23:13:26,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:13:26,575 INFO L208 MainTranslator]: Completed translation [2020-08-22 23:13:26,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26 WrapperNode [2020-08-22 23:13:26,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 23:13:26,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 23:13:26,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 23:13:26,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 23:13:26,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... [2020-08-22 23:13:26,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 23:13:26,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 23:13:26,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 23:13:26,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 23:13:26,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 23:13:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 23:13:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 23:13:26,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 23:13:26,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 23:13:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 23:13:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 23:13:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 23:13:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 23:13:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 23:13:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 23:13:27,190 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 23:13:27,191 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 23:13:27,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:13:27 BoogieIcfgContainer [2020-08-22 23:13:27,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 23:13:27,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 23:13:27,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 23:13:27,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 23:13:27,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 11:13:26" (1/3) ... [2020-08-22 23:13:27,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526bd49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:13:27, skipping insertion in model container [2020-08-22 23:13:27,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:13:26" (2/3) ... [2020-08-22 23:13:27,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526bd49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:13:27, skipping insertion in model container [2020-08-22 23:13:27,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:13:27" (3/3) ... [2020-08-22 23:13:27,224 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-08-22 23:13:27,247 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 23:13:27,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 23:13:27,336 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 23:13:27,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 23:13:27,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 23:13:27,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 23:13:27,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 23:13:27,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 23:13:27,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 23:13:27,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 23:13:27,387 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 23:13:27,412 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-08-22 23:13:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-22 23:13:27,430 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:13:27,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:13:27,433 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:13:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:13:27,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1436140310, now seen corresponding path program 1 times [2020-08-22 23:13:27,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:13:27,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763957316] [2020-08-22 23:13:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:13:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:27,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:13:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 23:13:27,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763957316] [2020-08-22 23:13:27,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:13:27,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-08-22 23:13:27,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130015587] [2020-08-22 23:13:27,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-08-22 23:13:27,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:13:27,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-08-22 23:13:27,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-22 23:13:27,653 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-08-22 23:13:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:13:27,701 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-08-22 23:13:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-08-22 23:13:27,704 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-08-22 23:13:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:13:27,721 INFO L225 Difference]: With dead ends: 50 [2020-08-22 23:13:27,722 INFO L226 Difference]: Without dead ends: 30 [2020-08-22 23:13:27,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-22 23:13:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-22 23:13:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-08-22 23:13:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-22 23:13:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-08-22 23:13:27,806 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2020-08-22 23:13:27,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:13:27,807 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-08-22 23:13:27,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-08-22 23:13:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-08-22 23:13:27,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-22 23:13:27,809 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:13:27,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:13:27,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 23:13:27,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:13:27,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:13:27,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1309792647, now seen corresponding path program 1 times [2020-08-22 23:13:27,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:13:27,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668624495] [2020-08-22 23:13:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:13:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:27,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:13:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 23:13:27,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668624495] [2020-08-22 23:13:27,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:13:27,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 23:13:27,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629366615] [2020-08-22 23:13:27,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 23:13:27,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:13:27,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 23:13:27,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 23:13:27,999 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2020-08-22 23:13:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:13:28,060 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-08-22 23:13:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 23:13:28,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-08-22 23:13:28,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:13:28,063 INFO L225 Difference]: With dead ends: 54 [2020-08-22 23:13:28,064 INFO L226 Difference]: Without dead ends: 47 [2020-08-22 23:13:28,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 23:13:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-08-22 23:13:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2020-08-22 23:13:28,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-22 23:13:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-08-22 23:13:28,081 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 14 [2020-08-22 23:13:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:13:28,082 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-08-22 23:13:28,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 23:13:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-08-22 23:13:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 23:13:28,084 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:13:28,084 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:13:28,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 23:13:28,085 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:13:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:13:28,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1704587139, now seen corresponding path program 1 times [2020-08-22 23:13:28,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:13:28,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104496502] [2020-08-22 23:13:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:13:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:28,718 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 29 [2020-08-22 23:13:28,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:13:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 23:13:28,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104496502] [2020-08-22 23:13:28,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:13:28,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 23:13:28,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55924487] [2020-08-22 23:13:28,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 23:13:28,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:13:28,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 23:13:28,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 23:13:28,854 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 6 states. [2020-08-22 23:13:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:13:35,462 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2020-08-22 23:13:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 23:13:35,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-08-22 23:13:35,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:13:35,466 INFO L225 Difference]: With dead ends: 74 [2020-08-22 23:13:35,466 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 23:13:35,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 23:13:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 23:13:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-08-22 23:13:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-22 23:13:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-08-22 23:13:35,481 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 20 [2020-08-22 23:13:35,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:13:35,482 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-08-22 23:13:35,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 23:13:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-08-22 23:13:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-22 23:13:35,484 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:13:35,484 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:13:35,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 23:13:35,485 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:13:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:13:35,486 INFO L82 PathProgramCache]: Analyzing trace with hash -110349398, now seen corresponding path program 1 times [2020-08-22 23:13:35,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:13:35,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633383798] [2020-08-22 23:13:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:13:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:35,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:13:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:13:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 23:13:35,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633383798] [2020-08-22 23:13:35,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:13:35,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 23:13:35,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708841349] [2020-08-22 23:13:35,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 23:13:35,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:13:35,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 23:13:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 23:13:35,976 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 6 states. [2020-08-22 23:13:40,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:13:40,396 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2020-08-22 23:13:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 23:13:40,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-08-22 23:13:40,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:13:40,398 INFO L225 Difference]: With dead ends: 75 [2020-08-22 23:13:40,398 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 23:13:40,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 23:13:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 23:13:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 23:13:40,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 23:13:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 23:13:40,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-22 23:13:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:13:40,402 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 23:13:40,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 23:13:40,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 23:13:40,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 23:13:40,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 23:13:40,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 23:13:40,726 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 23:13:40,727 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 23:13:40,727 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 23:13:40,728 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 23:13:40,728 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 23:13:40,728 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 23:13:40,728 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-08-22 23:13:40,729 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 12 33) the Hoare annotation is: true [2020-08-22 23:13:40,729 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-08-22 23:13:40,729 INFO L271 CegarLoopResult]: At program point L23-1(lines 23 26) the Hoare annotation is: true [2020-08-22 23:13:40,729 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (<= (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)) 2863311530)))) (* 1431655765 main_~x~0)) [2020-08-22 23:13:40,729 INFO L271 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-08-22 23:13:40,730 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-08-22 23:13:40,730 INFO L271 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: true [2020-08-22 23:13:40,730 INFO L264 CegarLoopResult]: At program point L23-5(lines 16 29) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 23:13:40,731 INFO L271 CegarLoopResult]: At program point L17(lines 17 28) the Hoare annotation is: true [2020-08-22 23:13:40,731 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 12 33) the Hoare annotation is: true [2020-08-22 23:13:40,731 INFO L271 CegarLoopResult]: At program point L30(lines 30 31) the Hoare annotation is: true [2020-08-22 23:13:40,731 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2020-08-22 23:13:40,731 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-08-22 23:13:40,732 INFO L271 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-08-22 23:13:40,732 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-08-22 23:13:40,732 INFO L271 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: true [2020-08-22 23:13:40,732 INFO L271 CegarLoopResult]: At program point L20(lines 20 27) the Hoare annotation is: true [2020-08-22 23:13:40,733 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse3 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse3) 3))) (let ((.cse2 (div (+ main_~x~0 .cse3 (* .cse1 (- 3))) 4294967296))) (and (<= (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 .cse2) 1431655765) (* 1431655765 main_~x~0)) (<= main_~x~0 (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 .cse2) 1))))))) [2020-08-22 23:13:40,733 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2020-08-22 23:13:40,733 INFO L264 CegarLoopResult]: At program point L16-1(lines 16 29) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 23:13:40,734 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-08-22 23:13:40,734 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 23:13:40,734 INFO L271 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: true [2020-08-22 23:13:40,735 INFO L264 CegarLoopResult]: At program point L16-5(lines 12 33) the Hoare annotation is: (or (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0)) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2020-08-22 23:13:40,735 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2020-08-22 23:13:40,735 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 10) the Hoare annotation is: true [2020-08-22 23:13:40,736 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 23:13:40,736 INFO L264 CegarLoopResult]: At program point L7(lines 7 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:13:40,736 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 10) the Hoare annotation is: true [2020-08-22 23:13:40,736 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 23:13:40,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 11:13:40 BoogieIcfgContainer [2020-08-22 23:13:40,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 23:13:40,776 INFO L168 Benchmark]: Toolchain (without parser) took 14535.92 ms. Allocated memory was 144.7 MB in the beginning and 234.9 MB in the end (delta: 90.2 MB). Free memory was 100.7 MB in the beginning and 170.4 MB in the end (delta: -69.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-08-22 23:13:40,778 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 144.7 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 23:13:40,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.06 ms. Allocated memory is still 144.7 MB. Free memory was 100.5 MB in the beginning and 90.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-22 23:13:40,780 INFO L168 Benchmark]: Boogie Preprocessor took 176.96 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 90.9 MB in the beginning and 182.1 MB in the end (delta: -91.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-08-22 23:13:40,782 INFO L168 Benchmark]: RCFGBuilder took 443.46 ms. Allocated memory is still 204.5 MB. Free memory was 182.1 MB in the beginning and 169.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-22 23:13:40,783 INFO L168 Benchmark]: TraceAbstraction took 13570.44 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 168.3 MB in the beginning and 170.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-08-22 23:13:40,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 144.7 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 335.06 ms. Allocated memory is still 144.7 MB. Free memory was 100.5 MB in the beginning and 90.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.96 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 90.9 MB in the beginning and 182.1 MB in the end (delta: -91.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.46 ms. Allocated memory is still 204.5 MB. Free memory was 182.1 MB in the beginning and 169.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13570.44 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 168.3 MB in the beginning and 170.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (y / 4294967296 <= 0 && 1 <= y) || x <= 4294967296 * (x / 4294967296) + 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * ((x + x / 4294967296 * -4294967296 + (x + x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 35 SDslu, 275 SDs, 0 SdLazy, 82 SolverSat, 8 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 67 PreInvPairs, 115 NumberOfFragments, 497 HoareAnnotationTreeSize, 67 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 13555 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...