/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 [2020-07-20 11:45:28,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:45:28,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:45:28,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:45:28,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:45:28,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:45:28,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:45:28,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:45:28,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:45:28,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:45:28,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:45:28,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:45:28,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:45:28,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:45:28,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:45:28,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:45:28,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:45:28,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:45:28,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:45:28,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:45:28,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:45:28,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:45:28,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:45:28,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:45:28,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:45:28,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:45:28,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:45:28,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:45:28,646 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 [2020-07-20 11:45:28,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:45:28,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:45:28,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:45:28,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:45:28,661 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:45:28,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:45:28,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:45:28,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:45:28,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:45:28,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:45:28,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:45:28,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:45:28,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:45:28,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:45:28,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:45:28,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:45:28,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:45:28,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:45:28,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:45:28,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:45:28,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:45:28,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:45:28,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:45:28,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:45:28,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:45:28,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:45:28,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:45:28,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:45:28,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:45:28,667 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 [2020-07-20 11:45:28,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:45:29,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:45:29,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:45:29,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:45:29,017 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:45:29,018 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-07-20 11:45:29,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa08aba2/4a98e5100b4741f3a6029f8f753c14e0/FLAG5a195bbd1 [2020-07-20 11:45:29,559 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:45:29,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-07-20 11:45:29,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa08aba2/4a98e5100b4741f3a6029f8f753c14e0/FLAG5a195bbd1 [2020-07-20 11:45:29,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa08aba2/4a98e5100b4741f3a6029f8f753c14e0 [2020-07-20 11:45:29,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:45:29,929 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:45:29,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:45:29,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:45:29,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:45:29,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:45:29" (1/1) ... [2020-07-20 11:45:29,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4240d646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:29, skipping insertion in model container [2020-07-20 11:45:29,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:45:29" (1/1) ... [2020-07-20 11:45:29,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:45:29,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:45:30,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:45:30,148 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:45:30,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:45:30,194 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:45:30,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30 WrapperNode [2020-07-20 11:45:30,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:45:30,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:45:30,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:45:30,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:45:30,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (1/1) ... [2020-07-20 11:45:30,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:45:30,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:45:30,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:45:30,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:45:30,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (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 [2020-07-20 11:45:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:45:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:45:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 11:45:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-07-20 11:45:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-07-20 11:45:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:45:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:45:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 11:45:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 11:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 11:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:45:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:45:30,734 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:45:30,735 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-20 11:45:30,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:45:30 BoogieIcfgContainer [2020-07-20 11:45:30,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:45:30,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:45:30,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:45:30,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:45:30,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:45:29" (1/3) ... [2020-07-20 11:45:30,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7471de85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:45:30, skipping insertion in model container [2020-07-20 11:45:30,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:30" (2/3) ... [2020-07-20 11:45:30,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7471de85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:45:30, skipping insertion in model container [2020-07-20 11:45:30,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:45:30" (3/3) ... [2020-07-20 11:45:30,751 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-07-20 11:45:30,759 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:45:30,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:45:30,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:45:30,803 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:45:30,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:45:30,804 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:45:30,804 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:45:30,804 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:45:30,804 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:45:30,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:45:30,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:45:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-07-20 11:45:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-20 11:45:30,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:45:30,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:45:30,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:45:30,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:45:30,831 INFO L82 PathProgramCache]: Analyzing trace with hash -762079996, now seen corresponding path program 1 times [2020-07-20 11:45:30,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:45:30,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204509334] [2020-07-20 11:45:30,839 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 [2020-07-20 11:45:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:45:30,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:45:30,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:45:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:45:31,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:45:31,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204509334] [2020-07-20 11:45:31,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:45:31,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:45:31,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740275319] [2020-07-20 11:45:31,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:45:31,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:45:31,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:45:31,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:45:31,023 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 5 states. [2020-07-20 11:45:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:45:31,166 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-07-20 11:45:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:45:31,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-20 11:45:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:45:31,179 INFO L225 Difference]: With dead ends: 93 [2020-07-20 11:45:31,179 INFO L226 Difference]: Without dead ends: 46 [2020-07-20 11:45:31,183 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 [2020-07-20 11:45:31,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-20 11:45:31,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-07-20 11:45:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-20 11:45:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-07-20 11:45:31,232 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2020-07-20 11:45:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:45:31,233 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-07-20 11:45:31,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:45:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-07-20 11:45:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-20 11:45:31,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:45:31,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:45:31,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:45:31,451 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:45:31,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:45:31,452 INFO L82 PathProgramCache]: Analyzing trace with hash 204295910, now seen corresponding path program 1 times [2020-07-20 11:45:31,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:45:31,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265304040] [2020-07-20 11:45:31,454 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 [2020-07-20 11:45:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:45:31,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 11:45:31,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:45:31,527 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:45:31,530 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:45:31,578 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 [2020-07-20 11:45:31,580 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:45:31,586 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 [2020-07-20 11:45:31,588 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 11:45:31,606 INFO L624 ElimStorePlain]: treesize reduction 16, result has 23.8 percent of original size [2020-07-20 11:45:31,607 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:45:31,607 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:5 [2020-07-20 11:45:31,637 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:45:31,639 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:45:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 11:45:31,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:45:31,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265304040] [2020-07-20 11:45:31,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:45:31,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 11:45:31,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88611427] [2020-07-20 11:45:31,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 11:45:31,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:45:31,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 11:45:31,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:45:31,674 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 8 states. [2020-07-20 11:45:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:45:31,793 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-07-20 11:45:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:45:31,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-07-20 11:45:31,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:45:31,795 INFO L225 Difference]: With dead ends: 42 [2020-07-20 11:45:31,796 INFO L226 Difference]: Without dead ends: 40 [2020-07-20 11:45:31,797 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 [2020-07-20 11:45:31,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-20 11:45:31,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-20 11:45:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-20 11:45:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-07-20 11:45:31,806 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 18 [2020-07-20 11:45:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:45:31,806 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-07-20 11:45:31,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 11:45:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-07-20 11:45:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 11:45:31,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:45:31,808 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] [2020-07-20 11:45:32,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:45:32,025 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:45:32,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:45:32,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1004823058, now seen corresponding path program 1 times [2020-07-20 11:45:32,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:45:32,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387768641] [2020-07-20 11:45:32,028 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 [2020-07-20 11:45:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:45:32,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 11:45:32,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:45:32,116 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:45:32,117 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 11:45:32,121 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-20 11:45:32,132 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 [2020-07-20 11:45:32,133 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:45:32,139 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 [2020-07-20 11:45:32,140 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 11:45:32,144 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 [2020-07-20 11:45:32,146 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 11:45:32,161 INFO L624 ElimStorePlain]: treesize reduction 34, result has 15.0 percent of original size [2020-07-20 11:45:32,161 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:45:32,161 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:134, output treesize:6 [2020-07-20 11:45:32,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:45:32,187 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:45:32,190 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 11:45:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 11:45:32,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:45:32,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387768641] [2020-07-20 11:45:32,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:45:32,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 11:45:32,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128924524] [2020-07-20 11:45:32,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 11:45:32,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:45:32,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 11:45:32,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:45:32,227 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 8 states. [2020-07-20 11:45:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:45:32,314 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-07-20 11:45:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:45:32,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-07-20 11:45:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:45:32,316 INFO L225 Difference]: With dead ends: 40 [2020-07-20 11:45:32,316 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:45:32,317 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 [2020-07-20 11:45:32,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:45:32,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:45:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:45:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:45:32,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-07-20 11:45:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:45:32,318 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:45:32,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 11:45:32,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:45:32,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:45:32,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:45:32,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:45:32,640 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:45:32,640 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:45:32,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:45:32,641 INFO L271 CegarLoopResult]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2020-07-20 11:45:32,641 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)))) [2020-07-20 11:45:32,641 INFO L268 CegarLoopResult]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2020-07-20 11:45:32,641 INFO L268 CegarLoopResult]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2020-07-20 11:45:32,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:45:32,641 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 11:45:32,642 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:45:32,642 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:45:32,642 INFO L268 CegarLoopResult]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-20 11:45:32,643 INFO L271 CegarLoopResult]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2020-07-20 11:45:32,643 INFO L268 CegarLoopResult]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2020-07-20 11:45:32,643 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))) [2020-07-20 11:45:32,643 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 36) no Hoare annotation was computed. [2020-07-20 11:45:32,644 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-07-20 11:45:32,644 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (not (= 0 (mod |main_#t~mem8| 2))) [2020-07-20 11:45:32,644 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-07-20 11:45:32,644 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2020-07-20 11:45:32,644 INFO L271 CegarLoopResult]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2020-07-20 11:45:32,644 INFO L268 CegarLoopResult]: For program point L28-4(lines 28 34) no Hoare annotation was computed. [2020-07-20 11:45:32,645 INFO L268 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-07-20 11:45:32,645 INFO L271 CegarLoopResult]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2020-07-20 11:45:32,645 INFO L268 CegarLoopResult]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2020-07-20 11:45:32,645 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= 0 (mod |main_#t~mem5| 2)) [2020-07-20 11:45:32,646 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-07-20 11:45:32,647 INFO L268 CegarLoopResult]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2020-07-20 11:45:32,647 INFO L271 CegarLoopResult]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2020-07-20 11:45:32,647 INFO L268 CegarLoopResult]: For program point L21-4(lines 21 27) no Hoare annotation was computed. [2020-07-20 11:45:32,647 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 36) no Hoare annotation was computed. [2020-07-20 11:45:32,647 INFO L268 CegarLoopResult]: For program point L30(lines 30 33) no Hoare annotation was computed. [2020-07-20 11:45:32,648 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 36) the Hoare annotation is: true [2020-07-20 11:45:32,648 INFO L268 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-07-20 11:45:32,649 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2020-07-20 11:45:32,649 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2020-07-20 11:45:32,649 INFO L268 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-07-20 11:45:32,649 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-07-20 11:45:32,649 INFO L268 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-07-20 11:45:32,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:45:32 BoogieIcfgContainer [2020-07-20 11:45:32,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:45:32,669 INFO L168 Benchmark]: Toolchain (without parser) took 2736.54 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 103.3 MB in the beginning and 164.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:45:32,671 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:45:32,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.70 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:45:32,680 INFO L168 Benchmark]: Boogie Preprocessor took 126.28 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.0 MB in the beginning and 180.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:45:32,680 INFO L168 Benchmark]: RCFGBuilder took 411.26 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 163.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-07-20 11:45:32,681 INFO L168 Benchmark]: TraceAbstraction took 1922.24 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 162.6 MB in the beginning and 164.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:45:32,694 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.70 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.28 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.0 MB in the beginning and 180.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 411.26 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 163.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1922.24 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 162.6 MB in the beginning and 164.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 31.5 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, 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, 0.3s 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...