/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:37:09,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:37:09,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:37:09,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:37:09,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:37:09,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:37:09,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:37:09,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:37:09,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:37:09,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:37:09,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:37:09,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:37:09,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:37:09,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:37:09,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:37:09,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:37:09,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:37:09,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:37:09,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:37:09,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:37:09,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:37:09,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:37:09,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:37:09,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:37:09,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:37:09,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:37:09,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:37:09,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:37:09,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:37:09,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:37:09,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:37:09,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:37:09,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:37:09,677 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:37:09,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:37:09,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:37:09,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:37:09,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:37:09,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:37:09,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:37:09,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:37:09,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:37:09,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:37:09,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:37:09,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:37:09,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:37:09,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:37:09,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:37:09,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:37:09,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:37:09,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:37:09,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:37:09,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:37:09,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:37:09,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:37:09,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:09,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:37:09,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:37:09,683 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:37:09,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:37:09,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:37:09,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:37:09,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:37:09,992 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:37:09,992 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-07-21 11:37:10,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e6ba46f/94c21c904fbd4fd19e3f24363a093cf2/FLAGd7751de25 [2020-07-21 11:37:10,527 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:37:10,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-07-21 11:37:10,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e6ba46f/94c21c904fbd4fd19e3f24363a093cf2/FLAGd7751de25 [2020-07-21 11:37:10,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e6ba46f/94c21c904fbd4fd19e3f24363a093cf2 [2020-07-21 11:37:10,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:37:10,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:37:10,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:37:10,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:37:10,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:37:10,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:37:10" (1/1) ... [2020-07-21 11:37:10,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a926594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:10, skipping insertion in model container [2020-07-21 11:37:10,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:37:10" (1/1) ... [2020-07-21 11:37:10,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:37:10,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:37:11,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:37:11,169 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:37:11,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:37:11,236 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:37:11,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11 WrapperNode [2020-07-21 11:37:11,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:37:11,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:37:11,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:37:11,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:37:11,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (1/1) ... [2020-07-21 11:37:11,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:37:11,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:37:11,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:37:11,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:37:11,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (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 [2020-07-21 11:37:11,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:37:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:37:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 11:37:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-07-21 11:37:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-07-21 11:37:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:37:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:37:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:37:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 11:37:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:37:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:37:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:37:11,760 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:37:11,760 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-21 11:37:11,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:37:11 BoogieIcfgContainer [2020-07-21 11:37:11,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:37:11,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:37:11,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:37:11,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:37:11,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:37:10" (1/3) ... [2020-07-21 11:37:11,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d26ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:37:11, skipping insertion in model container [2020-07-21 11:37:11,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:37:11" (2/3) ... [2020-07-21 11:37:11,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d26ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:37:11, skipping insertion in model container [2020-07-21 11:37:11,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:37:11" (3/3) ... [2020-07-21 11:37:11,777 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-07-21 11:37:11,791 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:37:11,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:37:11,816 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:37:11,844 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:37:11,844 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:37:11,845 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:37:11,845 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:37:11,845 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:37:11,845 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:37:11,846 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:37:11,846 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:37:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-07-21 11:37:11,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 11:37:11,875 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:37:11,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:37:11,877 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:37:11,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:37:11,884 INFO L82 PathProgramCache]: Analyzing trace with hash -762079996, now seen corresponding path program 1 times [2020-07-21 11:37:11,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:37:11,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315469289] [2020-07-21 11:37:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:37:11,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:37:11,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:37:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:37:12,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:37:12,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315469289] [2020-07-21 11:37:12,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:37:12,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:37:12,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203107724] [2020-07-21 11:37:12,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:37:12,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:37:12,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:37:12,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:37:12,113 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 5 states. [2020-07-21 11:37:12,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:37:12,263 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-07-21 11:37:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:37:12,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-21 11:37:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:37:12,276 INFO L225 Difference]: With dead ends: 93 [2020-07-21 11:37:12,276 INFO L226 Difference]: Without dead ends: 46 [2020-07-21 11:37:12,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:37:12,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-21 11:37:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-07-21 11:37:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-21 11:37:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-07-21 11:37:12,333 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2020-07-21 11:37:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:37:12,334 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-07-21 11:37:12,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:37:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-07-21 11:37:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-21 11:37:12,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:37:12,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:37:12,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:12,551 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:37:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:37:12,553 INFO L82 PathProgramCache]: Analyzing trace with hash 204295910, now seen corresponding path program 1 times [2020-07-21 11:37:12,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:37:12,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119561117] [2020-07-21 11:37:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:37:12,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 11:37:12,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:37:12,638 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:37:12,641 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:37:12,701 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2020-07-21 11:37:12,703 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:37:12,709 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 20 [2020-07-21 11:37:12,711 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 11:37:12,723 INFO L624 ElimStorePlain]: treesize reduction 16, result has 23.8 percent of original size [2020-07-21 11:37:12,724 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:37:12,724 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:5 [2020-07-21 11:37:12,755 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:37:12,757 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:37:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 11:37:12,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:37:12,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119561117] [2020-07-21 11:37:12,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:37:12,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 11:37:12,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641509449] [2020-07-21 11:37:12,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:37:12,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:37:12,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:37:12,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:37:12,793 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 8 states. [2020-07-21 11:37:12,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:37:12,916 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-07-21 11:37:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:37:12,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-07-21 11:37:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:37:12,919 INFO L225 Difference]: With dead ends: 42 [2020-07-21 11:37:12,919 INFO L226 Difference]: Without dead ends: 40 [2020-07-21 11:37:12,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-21 11:37:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-21 11:37:12,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-21 11:37:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-21 11:37:12,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-07-21 11:37:12,932 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 18 [2020-07-21 11:37:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:37:12,934 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-07-21 11:37:12,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:37:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-07-21 11:37:12,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-21 11:37:12,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:37:12,938 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] [2020-07-21 11:37:13,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:13,153 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:37:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:37:13,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1004823058, now seen corresponding path program 1 times [2020-07-21 11:37:13,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:37:13,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798477448] [2020-07-21 11:37:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:37:13,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 11:37:13,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:37:13,253 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:37:13,260 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 11:37:13,268 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-21 11:37:13,286 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 21 [2020-07-21 11:37:13,287 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:37:13,301 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2020-07-21 11:37:13,303 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 11:37:13,313 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2020-07-21 11:37:13,315 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 11:37:13,333 INFO L624 ElimStorePlain]: treesize reduction 34, result has 15.0 percent of original size [2020-07-21 11:37:13,334 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:37:13,335 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:134, output treesize:6 [2020-07-21 11:37:13,365 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:37:13,366 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:37:13,371 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:37:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 11:37:13,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:37:13,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798477448] [2020-07-21 11:37:13,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:37:13,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 11:37:13,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872996087] [2020-07-21 11:37:13,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:37:13,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:37:13,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:37:13,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:37:13,406 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 8 states. [2020-07-21 11:37:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:37:13,497 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-07-21 11:37:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:37:13,498 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-07-21 11:37:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:37:13,498 INFO L225 Difference]: With dead ends: 40 [2020-07-21 11:37:13,498 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:37:13,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-21 11:37:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:37:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:37:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:37:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:37:13,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-07-21 11:37:13,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:37:13,501 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:37:13,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:37:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:37:13,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:37:13,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:37:13,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:37:13,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:37:13,823 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:37:13,823 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:37:13,823 INFO L271 CegarLoopResult]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2020-07-21 11:37:13,823 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (or (= 0 (mod |printOdd_#in~i| 2)) (not (= 0 (mod printOdd_~i 2)))) [2020-07-21 11:37:13,824 INFO L268 CegarLoopResult]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2020-07-21 11:37:13,824 INFO L268 CegarLoopResult]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2020-07-21 11:37:13,824 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:37:13,824 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 11:37:13,824 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:37:13,824 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:37:13,824 INFO L268 CegarLoopResult]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-21 11:37:13,825 INFO L271 CegarLoopResult]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2020-07-21 11:37:13,825 INFO L268 CegarLoopResult]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2020-07-21 11:37:13,825 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (or (not (= 0 (mod |printEven_#in~i| 2))) (= 0 (mod printEven_~i 2))) [2020-07-21 11:37:13,825 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 36) no Hoare annotation was computed. [2020-07-21 11:37:13,825 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-07-21 11:37:13,825 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (not (= 0 (mod |main_#t~mem8| 2))) [2020-07-21 11:37:13,826 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-07-21 11:37:13,826 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2020-07-21 11:37:13,826 INFO L271 CegarLoopResult]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2020-07-21 11:37:13,826 INFO L268 CegarLoopResult]: For program point L28-4(lines 28 34) no Hoare annotation was computed. [2020-07-21 11:37:13,826 INFO L268 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-07-21 11:37:13,827 INFO L271 CegarLoopResult]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2020-07-21 11:37:13,827 INFO L268 CegarLoopResult]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2020-07-21 11:37:13,827 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= 0 (mod |main_#t~mem5| 2)) [2020-07-21 11:37:13,827 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-07-21 11:37:13,827 INFO L268 CegarLoopResult]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2020-07-21 11:37:13,827 INFO L271 CegarLoopResult]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2020-07-21 11:37:13,827 INFO L268 CegarLoopResult]: For program point L21-4(lines 21 27) no Hoare annotation was computed. [2020-07-21 11:37:13,828 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 36) no Hoare annotation was computed. [2020-07-21 11:37:13,828 INFO L268 CegarLoopResult]: For program point L30(lines 30 33) no Hoare annotation was computed. [2020-07-21 11:37:13,828 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 36) the Hoare annotation is: true [2020-07-21 11:37:13,828 INFO L268 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-07-21 11:37:13,828 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2020-07-21 11:37:13,829 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2020-07-21 11:37:13,829 INFO L268 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-07-21 11:37:13,829 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-07-21 11:37:13,829 INFO L268 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-07-21 11:37:13,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:37:13 BoogieIcfgContainer [2020-07-21 11:37:13,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:37:13,843 INFO L168 Benchmark]: Toolchain (without parser) took 2949.55 ms. Allocated memory was 136.8 MB in the beginning and 232.3 MB in the end (delta: 95.4 MB). Free memory was 101.6 MB in the beginning and 162.3 MB in the end (delta: -60.8 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:37:13,844 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 136.8 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 11:37:13,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.34 ms. Allocated memory is still 136.8 MB. Free memory was 101.2 MB in the beginning and 91.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:37:13,846 INFO L168 Benchmark]: Boogie Preprocessor took 171.72 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 91.3 MB in the beginning and 180.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:37:13,847 INFO L168 Benchmark]: RCFGBuilder took 356.31 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 163.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:37:13,848 INFO L168 Benchmark]: TraceAbstraction took 2072.96 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 162.4 MB in the beginning and 162.3 MB in the end (delta: 91.8 kB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:37:13,852 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 136.8 MB. Free memory is still 119.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.34 ms. Allocated memory is still 136.8 MB. Free memory was 101.2 MB in the beginning and 91.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.72 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 91.3 MB in the beginning and 180.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.31 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 163.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2072.96 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 162.4 MB in the beginning and 162.3 MB in the end (delta: 91.8 kB). Peak memory consumption was 30.0 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: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 47 SDslu, 415 SDs, 0 SdLazy, 148 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, 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, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 21 PreInvPairs, 29 NumberOfFragments, 45 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2228 SizeOfPredicates, 17 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...