/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 18:03:24,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 18:03:24,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 18:03:24,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 18:03:24,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 18:03:24,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 18:03:24,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 18:03:24,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 18:03:24,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 18:03:24,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 18:03:24,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 18:03:24,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 18:03:24,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 18:03:24,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 18:03:24,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 18:03:24,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 18:03:24,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 18:03:24,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 18:03:24,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 18:03:24,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 18:03:24,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 18:03:24,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 18:03:24,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 18:03:24,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 18:03:24,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 18:03:24,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 18:03:24,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 18:03:24,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 18:03:24,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 18:03:24,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 18:03:24,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 18:03:24,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 18:03:24,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 18:03:24,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 18:03:24,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 18:03:24,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 18:03:24,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 18:03:24,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 18:03:24,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 18:03:24,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 18:03:24,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 18:03:24,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 18:03:24,350 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 18:03:24,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 18:03:24,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 18:03:24,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 18:03:24,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 18:03:24,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 18:03:24,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 18:03:24,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 18:03:24,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 18:03:24,358 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 18:03:24,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 18:03:24,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 18:03:24,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 18:03:24,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 18:03:24,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 18:03:24,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 18:03:24,360 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 18:03:24,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 18:03:24,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 18:03:24,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 18:03:24,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 18:03:24,681 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 18:03:24,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-07-17 18:03:24,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f658a9c5d/584f4e633e5240bca24cf0e3a03f0abb/FLAG579fb9764 [2020-07-17 18:03:25,133 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 18:03:25,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-07-17 18:03:25,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f658a9c5d/584f4e633e5240bca24cf0e3a03f0abb/FLAG579fb9764 [2020-07-17 18:03:25,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f658a9c5d/584f4e633e5240bca24cf0e3a03f0abb [2020-07-17 18:03:25,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 18:03:25,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 18:03:25,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 18:03:25,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 18:03:25,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 18:03:25,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:25,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2504b886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25, skipping insertion in model container [2020-07-17 18:03:25,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:25,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 18:03:25,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 18:03:25,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 18:03:25,788 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 18:03:25,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 18:03:25,853 INFO L208 MainTranslator]: Completed translation [2020-07-17 18:03:25,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25 WrapperNode [2020-07-17 18:03:25,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 18:03:25,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 18:03:25,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 18:03:25,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 18:03:25,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:25,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:26,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:26,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:26,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:26,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:26,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... [2020-07-17 18:03:26,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 18:03:26,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 18:03:26,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 18:03:26,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 18:03:26,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 18:03:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 18:03:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 18:03:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 18:03:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-07-17 18:03:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-07-17 18:03:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 18:03:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 18:03:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 18:03:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 18:03:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-07-17 18:03:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-07-17 18:03:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 18:03:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 18:03:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 18:03:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 18:03:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 18:03:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 18:03:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 18:03:26,528 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 18:03:26,528 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-17 18:03:26,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 06:03:26 BoogieIcfgContainer [2020-07-17 18:03:26,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 18:03:26,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 18:03:26,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 18:03:26,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 18:03:26,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 06:03:25" (1/3) ... [2020-07-17 18:03:26,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc63de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 06:03:26, skipping insertion in model container [2020-07-17 18:03:26,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:03:25" (2/3) ... [2020-07-17 18:03:26,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc63de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 06:03:26, skipping insertion in model container [2020-07-17 18:03:26,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 06:03:26" (3/3) ... [2020-07-17 18:03:26,540 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-07-17 18:03:26,548 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 18:03:26,553 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 18:03:26,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 18:03:26,583 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 18:03:26,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 18:03:26,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 18:03:26,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 18:03:26,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 18:03:26,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 18:03:26,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 18:03:26,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 18:03:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-07-17 18:03:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 18:03:26,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:03:26,608 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, 1, 1, 1, 1, 1] [2020-07-17 18:03:26,608 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:03:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:03:26,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1447674201, now seen corresponding path program 1 times [2020-07-17 18:03:26,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:03:26,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645139044] [2020-07-17 18:03:26,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:03:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 18:03:26,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645139044] [2020-07-17 18:03:26,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:03:26,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 18:03:26,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096022989] [2020-07-17 18:03:26,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 18:03:26,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:03:26,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 18:03:26,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 18:03:26,826 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2020-07-17 18:03:27,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:03:27,147 INFO L93 Difference]: Finished difference Result 110 states and 130 transitions. [2020-07-17 18:03:27,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 18:03:27,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-17 18:03:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:03:27,159 INFO L225 Difference]: With dead ends: 110 [2020-07-17 18:03:27,159 INFO L226 Difference]: Without dead ends: 58 [2020-07-17 18:03:27,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 18:03:27,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-17 18:03:27,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-07-17 18:03:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-17 18:03:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2020-07-17 18:03:27,209 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 26 [2020-07-17 18:03:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:03:27,209 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2020-07-17 18:03:27,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 18:03:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2020-07-17 18:03:27,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 18:03:27,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:03:27,212 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, 1, 1, 1, 1, 1] [2020-07-17 18:03:27,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 18:03:27,212 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:03:27,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:03:27,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1779758876, now seen corresponding path program 1 times [2020-07-17 18:03:27,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:03:27,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647777145] [2020-07-17 18:03:27,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:03:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 18:03:27,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647777145] [2020-07-17 18:03:27,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:03:27,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 18:03:27,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664862336] [2020-07-17 18:03:27,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 18:03:27,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:03:27,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 18:03:27,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 18:03:27,318 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 6 states. [2020-07-17 18:03:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:03:27,531 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-07-17 18:03:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 18:03:27,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-17 18:03:27,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:03:27,534 INFO L225 Difference]: With dead ends: 125 [2020-07-17 18:03:27,534 INFO L226 Difference]: Without dead ends: 84 [2020-07-17 18:03:27,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 18:03:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-17 18:03:27,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2020-07-17 18:03:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-17 18:03:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2020-07-17 18:03:27,553 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 26 [2020-07-17 18:03:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:03:27,554 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2020-07-17 18:03:27,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 18:03:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2020-07-17 18:03:27,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-17 18:03:27,555 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:03:27,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 18:03:27,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 18:03:27,556 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:03:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:03:27,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1567937856, now seen corresponding path program 1 times [2020-07-17 18:03:27,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:03:27,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191987961] [2020-07-17 18:03:27,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:03:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 18:03:27,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191987961] [2020-07-17 18:03:27,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:03:27,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 18:03:27,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540442966] [2020-07-17 18:03:27,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 18:03:27,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:03:27,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 18:03:28,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-17 18:03:28,001 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 10 states. [2020-07-17 18:03:28,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:03:28,349 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-07-17 18:03:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 18:03:28,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-07-17 18:03:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:03:28,352 INFO L225 Difference]: With dead ends: 68 [2020-07-17 18:03:28,352 INFO L226 Difference]: Without dead ends: 66 [2020-07-17 18:03:28,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-17 18:03:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-17 18:03:28,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-07-17 18:03:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-17 18:03:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-07-17 18:03:28,365 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 33 [2020-07-17 18:03:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:03:28,365 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-07-17 18:03:28,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 18:03:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-07-17 18:03:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-17 18:03:28,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:03:28,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 18:03:28,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 18:03:28,368 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:03:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:03:28,368 INFO L82 PathProgramCache]: Analyzing trace with hash -741681537, now seen corresponding path program 1 times [2020-07-17 18:03:28,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:03:28,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248128489] [2020-07-17 18:03:28,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:03:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:03:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 18:03:28,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248128489] [2020-07-17 18:03:28,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:03:28,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 18:03:28,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412775259] [2020-07-17 18:03:28,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 18:03:28,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:03:28,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 18:03:28,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-17 18:03:28,612 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 10 states. [2020-07-17 18:03:28,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:03:28,973 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2020-07-17 18:03:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 18:03:28,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-07-17 18:03:28,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:03:28,975 INFO L225 Difference]: With dead ends: 66 [2020-07-17 18:03:28,975 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 18:03:28,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-17 18:03:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 18:03:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 18:03:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 18:03:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 18:03:28,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-07-17 18:03:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:03:28,978 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 18:03:28,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 18:03:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 18:03:28,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 18:03:28,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 18:03:28,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 18:03:29,347 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,348 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,348 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,348 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 18:03:29,349 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,349 INFO L271 CegarLoopResult]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2020-07-17 18:03:29,349 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (or (<= (+ (* 2 (div printOdd_~i 2)) 1) printOdd_~i) (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2)))))) [2020-07-17 18:03:29,350 INFO L264 CegarLoopResult]: At program point printOddFINAL(lines 7 9) the Hoare annotation is: (or (<= (+ (* 2 (div printOdd_~i 2)) 1) printOdd_~i) (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2)))))) [2020-07-17 18:03:29,350 INFO L264 CegarLoopResult]: At program point printOddEXIT(lines 7 9) the Hoare annotation is: (or (<= (+ (* 2 (div printOdd_~i 2)) 1) printOdd_~i) (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2)))))) [2020-07-17 18:03:29,350 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,350 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,351 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,351 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 18:03:29,351 INFO L264 CegarLoopResult]: At program point printEvenEXIT(lines 4 6) the Hoare annotation is: (or (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2020-07-17 18:03:29,351 INFO L271 CegarLoopResult]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2020-07-17 18:03:29,351 INFO L264 CegarLoopResult]: At program point printEvenFINAL(lines 4 6) the Hoare annotation is: (or (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2020-07-17 18:03:29,352 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (or (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2020-07-17 18:03:29,352 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 10 36) the Hoare annotation is: true [2020-07-17 18:03:29,352 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-07-17 18:03:29,352 INFO L264 CegarLoopResult]: At program point L23-1(lines 23 26) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem4|) (not (= |main_#t~mem4| (* 2 (div |main_#t~mem4| 2))))) [2020-07-17 18:03:29,352 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (or (= .cse0 |main_#t~mem4|) (not (= |main_#t~mem4| (* 2 (div |main_#t~mem4| 2))))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-07-17 18:03:29,353 INFO L264 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem4|) (not (= |main_#t~mem4| (* 2 (div |main_#t~mem4| 2))))) [2020-07-17 18:03:29,353 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2020-07-17 18:03:29,353 INFO L264 CegarLoopResult]: At program point L32-1(line 32) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem8| 1))) (<= .cse1 (* 2 (div .cse1 2))))) [2020-07-17 18:03:29,353 INFO L264 CegarLoopResult]: At program point L32-2(line 32) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem8| 1))) (<= .cse1 (* 2 (div .cse1 2))))) [2020-07-17 18:03:29,354 INFO L271 CegarLoopResult]: At program point L28-2(lines 28 34) the Hoare annotation is: true [2020-07-17 18:03:29,354 INFO L271 CegarLoopResult]: At program point L28-3(line 28) the Hoare annotation is: true [2020-07-17 18:03:29,354 INFO L271 CegarLoopResult]: At program point L28-4(line 28) the Hoare annotation is: true [2020-07-17 18:03:29,354 INFO L271 CegarLoopResult]: At program point L28-5(lines 28 34) the Hoare annotation is: true [2020-07-17 18:03:29,354 INFO L271 CegarLoopResult]: At program point L28-6(lines 28 34) the Hoare annotation is: true [2020-07-17 18:03:29,355 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-17 18:03:29,355 INFO L271 CegarLoopResult]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2020-07-17 18:03:29,355 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-07-17 18:03:29,355 INFO L271 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: true [2020-07-17 18:03:29,356 INFO L271 CegarLoopResult]: At program point L16-5(line 16) the Hoare annotation is: true [2020-07-17 18:03:29,356 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-07-17 18:03:29,356 INFO L271 CegarLoopResult]: At program point L16-6(lines 16 19) the Hoare annotation is: true [2020-07-17 18:03:29,356 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-07-17 18:03:29,356 INFO L271 CegarLoopResult]: At program point L16-7(lines 16 19) the Hoare annotation is: true [2020-07-17 18:03:29,357 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))) [2020-07-17 18:03:29,357 INFO L264 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (and (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))) (<= |main_#t~mem5| (* 2 (div |main_#t~mem5| 2)))) [2020-07-17 18:03:29,357 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (and (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))) (<= |main_#t~mem5| (* 2 (div |main_#t~mem5| 2)))) [2020-07-17 18:03:29,357 INFO L271 CegarLoopResult]: At program point L21-2(lines 21 27) the Hoare annotation is: true [2020-07-17 18:03:29,357 INFO L271 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: true [2020-07-17 18:03:29,357 INFO L271 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: true [2020-07-17 18:03:29,358 INFO L271 CegarLoopResult]: At program point L21-5(lines 21 27) the Hoare annotation is: true [2020-07-17 18:03:29,358 INFO L271 CegarLoopResult]: At program point L21-6(lines 21 27) the Hoare annotation is: true [2020-07-17 18:03:29,358 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 10 36) the Hoare annotation is: true [2020-07-17 18:03:29,358 INFO L271 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: true [2020-07-17 18:03:29,358 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 36) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 18:03:29,358 INFO L264 CegarLoopResult]: At program point L30-1(lines 30 33) the Hoare annotation is: (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) [2020-07-17 18:03:29,359 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (let ((.cse0 (+ .cse1 1))) (<= .cse0 (* 2 (div .cse0 2)))) (= .cse1 |main_#t~mem7|))) [2020-07-17 18:03:29,359 INFO L264 CegarLoopResult]: At program point L30-4(line 30) the Hoare annotation is: (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) [2020-07-17 18:03:29,359 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-17 18:03:29,359 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-07-17 18:03:29,359 INFO L271 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: true [2020-07-17 18:03:29,360 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-17 18:03:29,360 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-07-17 18:03:29,360 INFO L271 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: true [2020-07-17 18:03:29,360 INFO L264 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 18:03:29,360 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2020-07-17 18:03:29,360 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(line 3) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 18:03:29,361 INFO L264 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 18:03:29,361 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 18:03:29,361 INFO L264 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 18:03:29,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 06:03:29 BoogieIcfgContainer [2020-07-17 18:03:29,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 18:03:29,388 INFO L168 Benchmark]: Toolchain (without parser) took 3815.67 ms. Allocated memory was 145.8 MB in the beginning and 243.8 MB in the end (delta: 98.0 MB). Free memory was 103.6 MB in the beginning and 138.5 MB in the end (delta: -34.9 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-07-17 18:03:29,389 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 145.8 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 18:03:29,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.58 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-17 18:03:29,391 INFO L168 Benchmark]: Boogie Preprocessor took 192.73 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 93.0 MB in the beginning and 182.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 18:03:29,392 INFO L168 Benchmark]: RCFGBuilder took 485.71 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 163.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-07-17 18:03:29,393 INFO L168 Benchmark]: TraceAbstraction took 2851.26 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 163.3 MB in the beginning and 138.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. [2020-07-17 18:03:29,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 145.8 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.58 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.73 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 93.0 MB in the beginning and 182.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 485.71 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 163.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2851.26 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 163.3 MB in the beginning and 138.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for printOdd Derived contract for procedure printOdd: 2 * (i / 2) + 1 <= i || !(\old(i) + 1 <= 2 * ((\old(i) + 1) / 2)) - ProcedureContractResult [Line: 4]: Procedure Contract for printEven Derived contract for procedure printEven: !(\old(i) <= 2 * (\old(i) / 2)) || i <= 2 * (i / 2) - ProcedureContractResult [Line: 10]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 3]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 225 SDtfs, 93 SDslu, 656 SDs, 0 SdLazy, 576 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 111 PreInvPairs, 158 NumberOfFragments, 532 HoareAnnotationTreeSize, 111 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 65 FomulaSimplificationsInter, 238 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 12032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 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...