/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 13:04:21,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 13:04:21,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 13:04:21,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 13:04:21,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 13:04:21,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 13:04:21,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 13:04:21,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 13:04:21,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 13:04:21,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 13:04:21,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 13:04:21,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 13:04:21,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 13:04:21,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 13:04:21,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 13:04:21,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 13:04:21,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 13:04:21,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 13:04:21,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 13:04:21,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 13:04:21,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 13:04:21,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 13:04:21,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 13:04:21,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 13:04:21,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 13:04:21,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 13:04:21,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 13:04:21,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 13:04:21,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 13:04:21,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 13:04:21,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 13:04:21,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 13:04:21,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 13:04:21,654 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 13:04:21,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 13:04:21,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 13:04:21,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 13:04:21,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 13:04:21,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 13:04:21,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 13:04:21,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 13:04:21,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 13:04:21,657 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 13:04:21,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 13:04:21,657 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 13:04:21,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 13:04:21,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 13:04:21,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 13:04:21,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 13:04:21,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 13:04:21,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 13:04:21,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 13:04:21,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 13:04:21,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 13:04:21,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 13:04:21,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 13:04:21,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 13:04:21,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 13:04:21,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 13:04:21,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 13:04:22,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 13:04:22,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 13:04:22,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 13:04:22,005 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 13:04:22,006 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-08-18 13:04:22,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d013a6a2/462368d7a6e94ebda6ac377f1fd906a7/FLAGba6967fec [2020-08-18 13:04:22,567 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 13:04:22,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-08-18 13:04:22,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d013a6a2/462368d7a6e94ebda6ac377f1fd906a7/FLAGba6967fec [2020-08-18 13:04:22,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d013a6a2/462368d7a6e94ebda6ac377f1fd906a7 [2020-08-18 13:04:22,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 13:04:22,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 13:04:22,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 13:04:22,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 13:04:22,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 13:04:22,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 01:04:22" (1/1) ... [2020-08-18 13:04:22,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24cf129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:22, skipping insertion in model container [2020-08-18 13:04:22,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 01:04:22" (1/1) ... [2020-08-18 13:04:22,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 13:04:22,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 13:04:23,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 13:04:23,268 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 13:04:23,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 13:04:23,421 INFO L208 MainTranslator]: Completed translation [2020-08-18 13:04:23,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23 WrapperNode [2020-08-18 13:04:23,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 13:04:23,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 13:04:23,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 13:04:23,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 13:04:23,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... [2020-08-18 13:04:23,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 13:04:23,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 13:04:23,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 13:04:23,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 13:04:23,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 13:04:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 13:04:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 13:04:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 13:04:23,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 13:04:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 13:04:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 13:04:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 13:04:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 13:04:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 13:04:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 13:04:23,817 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 13:04:23,818 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 13:04:23,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 01:04:23 BoogieIcfgContainer [2020-08-18 13:04:23,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 13:04:23,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 13:04:23,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 13:04:23,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 13:04:23,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 01:04:22" (1/3) ... [2020-08-18 13:04:23,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371bdd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 01:04:23, skipping insertion in model container [2020-08-18 13:04:23,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:04:23" (2/3) ... [2020-08-18 13:04:23,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371bdd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 01:04:23, skipping insertion in model container [2020-08-18 13:04:23,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 01:04:23" (3/3) ... [2020-08-18 13:04:23,837 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-08-18 13:04:23,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 13:04:23,859 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-08-18 13:04:23,877 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-08-18 13:04:23,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 13:04:23,928 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 13:04:23,928 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 13:04:23,929 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 13:04:23,929 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 13:04:23,929 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 13:04:23,929 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 13:04:23,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 13:04:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-08-18 13:04:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-18 13:04:23,984 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:23,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:23,986 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1504353719, now seen corresponding path program 1 times [2020-08-18 13:04:23,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:24,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957887710] [2020-08-18 13:04:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:24,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:24,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957887710] [2020-08-18 13:04:24,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:24,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 13:04:24,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115983150] [2020-08-18 13:04:24,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 13:04:24,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:24,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 13:04:24,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 13:04:24,307 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-08-18 13:04:24,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:24,447 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2020-08-18 13:04:24,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 13:04:24,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-08-18 13:04:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:24,460 INFO L225 Difference]: With dead ends: 51 [2020-08-18 13:04:24,461 INFO L226 Difference]: Without dead ends: 33 [2020-08-18 13:04:24,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 13:04:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-18 13:04:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-08-18 13:04:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-08-18 13:04:24,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-08-18 13:04:24,510 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 13 [2020-08-18 13:04:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:24,511 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-08-18 13:04:24,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 13:04:24,511 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-08-18 13:04:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 13:04:24,512 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:24,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:24,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 13:04:24,513 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:24,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:24,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1581018098, now seen corresponding path program 1 times [2020-08-18 13:04:24,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:24,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71976319] [2020-08-18 13:04:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:24,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:24,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71976319] [2020-08-18 13:04:24,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:24,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 13:04:24,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512634049] [2020-08-18 13:04:24,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 13:04:24,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:24,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 13:04:24,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 13:04:24,622 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 5 states. [2020-08-18 13:04:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:24,726 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-08-18 13:04:24,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 13:04:24,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-18 13:04:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:24,729 INFO L225 Difference]: With dead ends: 51 [2020-08-18 13:04:24,729 INFO L226 Difference]: Without dead ends: 49 [2020-08-18 13:04:24,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 13:04:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-08-18 13:04:24,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2020-08-18 13:04:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-18 13:04:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-08-18 13:04:24,740 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 14 [2020-08-18 13:04:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:24,741 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-08-18 13:04:24,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 13:04:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-08-18 13:04:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 13:04:24,742 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:24,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:24,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 13:04:24,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:24,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:24,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1644741047, now seen corresponding path program 1 times [2020-08-18 13:04:24,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:24,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671748962] [2020-08-18 13:04:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:24,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:24,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:24,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671748962] [2020-08-18 13:04:24,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:24,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 13:04:24,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764222010] [2020-08-18 13:04:24,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 13:04:24,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:24,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 13:04:24,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 13:04:24,817 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 4 states. [2020-08-18 13:04:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:24,938 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-08-18 13:04:24,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 13:04:24,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-08-18 13:04:24,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:24,940 INFO L225 Difference]: With dead ends: 60 [2020-08-18 13:04:24,940 INFO L226 Difference]: Without dead ends: 40 [2020-08-18 13:04:24,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 13:04:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-18 13:04:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-08-18 13:04:24,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-18 13:04:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-18 13:04:24,949 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 14 [2020-08-18 13:04:24,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:24,950 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-18 13:04:24,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 13:04:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-18 13:04:24,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 13:04:24,951 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:24,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:24,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 13:04:24,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:24,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:24,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1824116622, now seen corresponding path program 1 times [2020-08-18 13:04:24,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:24,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524226787] [2020-08-18 13:04:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:25,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:25,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524226787] [2020-08-18 13:04:25,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:25,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 13:04:25,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542524575] [2020-08-18 13:04:25,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 13:04:25,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:25,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 13:04:25,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 13:04:25,036 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2020-08-18 13:04:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:25,122 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2020-08-18 13:04:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 13:04:25,123 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-08-18 13:04:25,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:25,124 INFO L225 Difference]: With dead ends: 54 [2020-08-18 13:04:25,124 INFO L226 Difference]: Without dead ends: 34 [2020-08-18 13:04:25,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 13:04:25,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-08-18 13:04:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2020-08-18 13:04:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-18 13:04:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-08-18 13:04:25,131 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 15 [2020-08-18 13:04:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:25,132 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-08-18 13:04:25,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 13:04:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-08-18 13:04:25,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-18 13:04:25,133 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:25,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:25,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 13:04:25,134 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:25,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1385845809, now seen corresponding path program 1 times [2020-08-18 13:04:25,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:25,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168655807] [2020-08-18 13:04:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:26,089 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 88 [2020-08-18 13:04:26,473 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 72 [2020-08-18 13:04:26,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:26,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:26,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168655807] [2020-08-18 13:04:26,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:26,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 13:04:26,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383120076] [2020-08-18 13:04:26,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:04:26,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:26,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:04:26,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:04:26,531 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 10 states. [2020-08-18 13:04:28,910 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 40 [2020-08-18 13:04:29,213 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-08-18 13:04:29,417 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 42 [2020-08-18 13:04:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:29,677 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2020-08-18 13:04:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 13:04:29,679 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-08-18 13:04:29,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:29,681 INFO L225 Difference]: With dead ends: 58 [2020-08-18 13:04:29,683 INFO L226 Difference]: Without dead ends: 56 [2020-08-18 13:04:29,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-08-18 13:04:29,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-08-18 13:04:29,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 34. [2020-08-18 13:04:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-08-18 13:04:29,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-08-18 13:04:29,706 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 20 [2020-08-18 13:04:29,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:29,707 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-08-18 13:04:29,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 13:04:29,707 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-08-18 13:04:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-18 13:04:29,709 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:29,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:29,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 13:04:29,710 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:29,711 INFO L82 PathProgramCache]: Analyzing trace with hash -624217503, now seen corresponding path program 1 times [2020-08-18 13:04:29,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:29,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711502975] [2020-08-18 13:04:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:29,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:29,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711502975] [2020-08-18 13:04:29,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:29,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 13:04:29,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052753584] [2020-08-18 13:04:29,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 13:04:29,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:29,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 13:04:29,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 13:04:29,889 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 6 states. [2020-08-18 13:04:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:30,063 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2020-08-18 13:04:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 13:04:30,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-08-18 13:04:30,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:30,065 INFO L225 Difference]: With dead ends: 63 [2020-08-18 13:04:30,068 INFO L226 Difference]: Without dead ends: 48 [2020-08-18 13:04:30,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-18 13:04:30,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-18 13:04:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2020-08-18 13:04:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-18 13:04:30,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-08-18 13:04:30,087 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 21 [2020-08-18 13:04:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:30,087 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-08-18 13:04:30,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 13:04:30,088 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-08-18 13:04:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-18 13:04:30,088 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:30,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:30,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 13:04:30,089 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:30,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:30,090 INFO L82 PathProgramCache]: Analyzing trace with hash -640274852, now seen corresponding path program 1 times [2020-08-18 13:04:30,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:30,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445440482] [2020-08-18 13:04:30,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:30,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445440482] [2020-08-18 13:04:30,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:04:30,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 13:04:30,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754390386] [2020-08-18 13:04:30,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 13:04:30,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:30,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 13:04:30,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 13:04:30,150 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 7 states. [2020-08-18 13:04:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:30,298 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-08-18 13:04:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 13:04:30,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-08-18 13:04:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:30,299 INFO L225 Difference]: With dead ends: 55 [2020-08-18 13:04:30,299 INFO L226 Difference]: Without dead ends: 53 [2020-08-18 13:04:30,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-08-18 13:04:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-08-18 13:04:30,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 37. [2020-08-18 13:04:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-18 13:04:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-08-18 13:04:30,314 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 21 [2020-08-18 13:04:30,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:30,315 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-08-18 13:04:30,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 13:04:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-08-18 13:04:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-18 13:04:30,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:30,316 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, 1] [2020-08-18 13:04:30,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 13:04:30,316 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:30,317 INFO L82 PathProgramCache]: Analyzing trace with hash 358048683, now seen corresponding path program 1 times [2020-08-18 13:04:30,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:30,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710663456] [2020-08-18 13:04:30,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:30,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:30,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710663456] [2020-08-18 13:04:30,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 13:04:30,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 13:04:30,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510647147] [2020-08-18 13:04:30,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 13:04:30,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:30,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 13:04:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 13:04:30,519 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 7 states. [2020-08-18 13:04:35,331 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2020-08-18 13:04:37,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:37,509 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-08-18 13:04:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 13:04:37,510 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-08-18 13:04:37,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:37,511 INFO L225 Difference]: With dead ends: 50 [2020-08-18 13:04:37,511 INFO L226 Difference]: Without dead ends: 29 [2020-08-18 13:04:37,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-08-18 13:04:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-08-18 13:04:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-08-18 13:04:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-18 13:04:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-08-18 13:04:37,526 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 22 [2020-08-18 13:04:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:37,526 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-08-18 13:04:37,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 13:04:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-08-18 13:04:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-18 13:04:37,529 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:04:37,529 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:04:37,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 13:04:37,530 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:04:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:04:37,531 INFO L82 PathProgramCache]: Analyzing trace with hash -874117243, now seen corresponding path program 1 times [2020-08-18 13:04:37,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:04:37,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712772564] [2020-08-18 13:04:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:04:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:38,008 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2020-08-18 13:04:39,894 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 39 [2020-08-18 13:04:40,155 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 40 [2020-08-18 13:04:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:04:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:04:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:04:40,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712772564] [2020-08-18 13:04:40,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 13:04:40,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 13:04:40,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824831565] [2020-08-18 13:04:40,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 13:04:40,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:04:40,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 13:04:40,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-08-18 13:04:40,306 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 11 states. [2020-08-18 13:04:40,505 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-08-18 13:04:46,994 WARN L193 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-08-18 13:04:47,356 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-08-18 13:04:47,636 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2020-08-18 13:04:47,896 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-08-18 13:04:50,151 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-08-18 13:04:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:04:50,159 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-08-18 13:04:50,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 13:04:50,164 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-08-18 13:04:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:04:50,165 INFO L225 Difference]: With dead ends: 30 [2020-08-18 13:04:50,165 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 13:04:50,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-18 13:04:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 13:04:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 13:04:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 13:04:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 13:04:50,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-08-18 13:04:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:04:50,167 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 13:04:50,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 13:04:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 13:04:50,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 13:04:50,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 13:04:50,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 13:04:54,514 WARN L193 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-08-18 13:05:00,983 WARN L193 SmtUtils]: Spent 6.47 s on a formula simplification. DAG size of input: 122 DAG size of output: 56 [2020-08-18 13:05:03,492 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 119 DAG size of output: 56 [2020-08-18 13:05:05,598 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-08-18 13:05:05,626 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 13:05:05,626 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_136~0 |old(~__return_136~0)|) (= |old(#valid)| |#valid|)) [2020-08-18 13:05:05,627 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 13:05:05,627 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 13:05:05,627 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 13:05:05,627 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 13:05:05,627 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 13:05:05,627 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-18 13:05:05,627 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-18 13:05:05,627 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-18 13:05:05,628 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-18 13:05:05,628 INFO L268 CegarLoopResult]: For program point L60(lines 60 86) no Hoare annotation was computed. [2020-08-18 13:05:05,628 INFO L268 CegarLoopResult]: For program point L27(lines 27 150) no Hoare annotation was computed. [2020-08-18 13:05:05,628 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 166) no Hoare annotation was computed. [2020-08-18 13:05:05,628 INFO L264 CegarLoopResult]: At program point L85(lines 60 86) the Hoare annotation is: (and (not (= main_~main____CPAchecker_TMP_0~1 0)) (= main_~__VERIFIER_assert__cond~0 1) (<= main_~main__index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~main__index1~0 (* main_~main__index2~0 (- 1)) 4294967294) 4294967296) (- 4294967296)) main_~main__index1~0 (- 1)) 4294967296)) 99998)) (<= (+ main_~main__index1~0 (* 4294967296 (div main_~main__index2~0 4294967296)) 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296))))) [2020-08-18 13:05:05,628 INFO L268 CegarLoopResult]: For program point L19(lines 19 165) no Hoare annotation was computed. [2020-08-18 13:05:05,629 INFO L268 CegarLoopResult]: For program point L48(lines 48 136) no Hoare annotation was computed. [2020-08-18 13:05:05,629 INFO L264 CegarLoopResult]: At program point L77(lines 44 137) the Hoare annotation is: (let ((.cse4 (div main_~main__index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4)) (.cse3 (div main_~main__index1~0 4294967296))) (let ((.cse1 (= main_~__VERIFIER_assert__cond~0 1)) (.cse2 (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 .cse3))))) (or (and (<= main_~main__index2~0 (+ .cse0 99999)) .cse1 (= main_~main____CPAchecker_TMP_0~0 1) .cse2) (and .cse1 (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ (* 4294967296 (div (+ main_~main__index2~0 (* .cse3 4294967296) (* .cse4 (- 4294967296)) 4294867297) 4294967296)) 1) main_~main__index1~0) .cse2))))) [2020-08-18 13:05:05,629 INFO L268 CegarLoopResult]: For program point L106(lines 106 118) no Hoare annotation was computed. [2020-08-18 13:05:05,629 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 13:05:05,629 INFO L268 CegarLoopResult]: For program point L69(lines 69 78) no Hoare annotation was computed. [2020-08-18 13:05:05,630 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2020-08-18 13:05:05,630 INFO L264 CegarLoopResult]: At program point L90(lines 58 91) the Hoare annotation is: false [2020-08-18 13:05:05,630 INFO L268 CegarLoopResult]: For program point L24(lines 24 155) no Hoare annotation was computed. [2020-08-18 13:05:05,630 INFO L264 CegarLoopResult]: At program point L144(lines 29 145) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (= main_~main__loop_entered~0 0) (= main_~main____CPAchecker_TMP_0~0 1) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-08-18 13:05:05,630 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-08-18 13:05:05,630 INFO L268 CegarLoopResult]: For program point L29(lines 29 145) no Hoare annotation was computed. [2020-08-18 13:05:05,630 INFO L268 CegarLoopResult]: For program point L58(lines 58 91) no Hoare annotation was computed. [2020-08-18 13:05:05,631 INFO L264 CegarLoopResult]: At program point L149(lines 27 150) the Hoare annotation is: false [2020-08-18 13:05:05,631 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 166) no Hoare annotation was computed. [2020-08-18 13:05:05,631 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-08-18 13:05:05,631 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-08-18 13:05:05,631 INFO L268 CegarLoopResult]: For program point L38(lines 38 137) no Hoare annotation was computed. [2020-08-18 13:05:05,631 INFO L271 CegarLoopResult]: At program point L129(lines 96 130) the Hoare annotation is: true [2020-08-18 13:05:05,631 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2020-08-18 13:05:05,631 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 166) the Hoare annotation is: (and (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |old(#valid)| |#valid|)) [2020-08-18 13:05:05,632 INFO L264 CegarLoopResult]: At program point L154(lines 24 155) the Hoare annotation is: (or (= main_~main__loop_entered~0 0) (and (let ((.cse0 (div main_~main__index2~0 4294967296)) (.cse1 (div main_~main__index1~0 4294967296))) (or (<= (+ main_~main__index1~0 (* 4294967296 .cse0)) (+ main_~main__index2~0 (* 4294967296 .cse1))) (let ((.cse6 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse5 (select .cse6 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* .cse1 (- 17179869184))))) (.cse3 (select .cse6 (+ (* main_~main__index2~0 4) |main_~#main__array~0.offset| (* .cse0 (- 17179869184)))))) (let ((.cse4 (+ .cse5 (* 4294967296 (div .cse3 4294967296)))) (.cse2 (* 4294967296 (div .cse5 4294967296)))) (and (<= (+ .cse2 .cse3) .cse4) (< .cse4 (+ .cse2 .cse3 1)))))))) (= main_~__VERIFIER_assert__cond~0 1) (<= main_~main__index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~main__index1~0 (* main_~main__index2~0 (- 1)) 4294967294) 4294967296) (- 4294967296)) main_~main__index1~0 (- 1)) 4294967296)) 99998)))) [2020-08-18 13:05:05,632 INFO L268 CegarLoopResult]: For program point L55(lines 55 131) no Hoare annotation was computed. [2020-08-18 13:05:05,632 INFO L268 CegarLoopResult]: For program point L22(lines 22 160) no Hoare annotation was computed. [2020-08-18 13:05:05,632 INFO L264 CegarLoopResult]: At program point L117(lines 97 126) the Hoare annotation is: (let ((.cse1 (= main_~__VERIFIER_assert__cond~0 1)) (.cse3 (div main_~main__index2~0 4294967296)) (.cse2 (div main_~main__index1~0 4294967296))) (or (let ((.cse0 (* 4294967296 .cse3))) (and (<= main_~main__index2~0 (+ .cse0 99999)) .cse1 (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 .cse2))))) (let ((.cse8 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse7 (select .cse8 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* .cse2 (- 17179869184))))) (.cse5 (select .cse8 (+ (* main_~main__index2~0 4) |main_~#main__array~0.offset| (* .cse3 (- 17179869184)))))) (let ((.cse6 (+ .cse7 (* 4294967296 (div .cse5 4294967296)))) (.cse4 (* 4294967296 (div .cse7 4294967296)))) (and (<= (+ .cse4 .cse5) .cse6) .cse1 (< .cse6 (+ .cse4 .cse5 1)) (<= main_~main__index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~main__index1~0 (* main_~main__index2~0 (- 1)) 4294967294) 4294967296) (- 4294967296)) main_~main__index1~0 (- 1)) 4294967296)) 99998)))))))) [2020-08-18 13:05:05,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 01:05:05 BoogieIcfgContainer [2020-08-18 13:05:05,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 13:05:05,672 INFO L168 Benchmark]: Toolchain (without parser) took 42740.71 ms. Allocated memory was 148.4 MB in the beginning and 266.9 MB in the end (delta: 118.5 MB). Free memory was 104.2 MB in the beginning and 144.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-08-18 13:05:05,673 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 13:05:05,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.32 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 104.0 MB in the beginning and 182.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-08-18 13:05:05,674 INFO L168 Benchmark]: Boogie Preprocessor took 37.34 ms. Allocated memory is still 203.4 MB. Free memory was 182.4 MB in the beginning and 180.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-18 13:05:05,675 INFO L168 Benchmark]: RCFGBuilder took 365.93 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 160.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-08-18 13:05:05,676 INFO L168 Benchmark]: TraceAbstraction took 41842.81 ms. Allocated memory was 203.4 MB in the beginning and 266.9 MB in the end (delta: 63.4 MB). Free memory was 159.5 MB in the beginning and 144.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-08-18 13:05:05,680 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 488.32 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 104.0 MB in the beginning and 182.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.34 ms. Allocated memory is still 203.4 MB. Free memory was 182.4 MB in the beginning and 180.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 365.93 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 160.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41842.81 ms. Allocated memory was 203.4 MB in the beginning and 266.9 MB in the end (delta: 63.4 MB). Free memory was 159.5 MB in the beginning and 144.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && __VERIFIER_assert__cond == 1) && main____CPAchecker_TMP_0 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) || (((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && 4294967296 * ((main__index2 + main__index1 / 4294967296 * 4294967296 + main__index2 / 4294967296 * -4294967296 + 4294867297) / 4294967296) + 1 <= main__index1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) - InvariantResult [Line: 24]: Loop Invariant [2020-08-18 13:05:05,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: main__loop_entered == 0 || (((main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296) || (4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 1)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (((main__index1 + main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 + -1) / 4294967296) + 99998) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 97]: Loop Invariant [2020-08-18 13:05:05,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-18 13:05:05,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && __VERIFIER_assert__cond == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) || (((4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 1) && main__index2 <= 4294967296 * (((main__index1 + main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 + -1) / 4294967296) + 99998) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: ((!(main____CPAchecker_TMP_0 == 0) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (((main__index1 + main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 + -1) / 4294967296) + 99998) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__loop_entered == 0) && main____CPAchecker_TMP_0 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.2s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 20.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 242 SDtfs, 292 SDslu, 382 SDs, 0 SdLazy, 594 SolverSat, 38 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 83 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 24 NumberOfFragments, 557 HoareAnnotationTreeSize, 12 FomulaSimplifications, 19374 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 1975 FormulaSimplificationTreeSizeReductionInter, 15.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 75619 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 3/5 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...