/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:50:53,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:50:53,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:50:54,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:50:54,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:50:54,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:50:54,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:50:54,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:50:54,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:50:54,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:50:54,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:50:54,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:50:54,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:50:54,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:50:54,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:50:54,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:50:54,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:50:54,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:50:54,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:50:54,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:50:54,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:50:54,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:50:54,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:50:54,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:50:54,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:50:54,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:50:54,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:50:54,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:50:54,057 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 01:50:54,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:50:54,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:50:54,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:50:54,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:50:54,073 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:50:54,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:50:54,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:50:54,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:50:54,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:50:54,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:50:54,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:50:54,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:50:54,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:50:54,075 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:50:54,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:50:54,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:50:54,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:50:54,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:50:54,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:50:54,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:50:54,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:50:54,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:50:54,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:50:54,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:50:54,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:50:54,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:50:54,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:50:54,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:50:54,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:50:54,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 01:50:54,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:50:54,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:50:54,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:50:54,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:50:54,391 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:50:54,393 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-07-20 01:50:54,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ea81096a/413ce9082337469bb466df2afba415c4/FLAG692ae142e [2020-07-20 01:50:54,978 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:50:54,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-07-20 01:50:54,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ea81096a/413ce9082337469bb466df2afba415c4/FLAG692ae142e [2020-07-20 01:50:55,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ea81096a/413ce9082337469bb466df2afba415c4 [2020-07-20 01:50:55,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:50:55,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:50:55,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:50:55,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:50:55,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:50:55,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a352d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55, skipping insertion in model container [2020-07-20 01:50:55,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:50:55,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:50:55,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:50:55,587 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:50:55,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:50:55,620 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:50:55,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55 WrapperNode [2020-07-20 01:50:55,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:50:55,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:50:55,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:50:55,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:50:55,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (1/1) ... [2020-07-20 01:50:55,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:50:55,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:50:55,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:50:55,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:50:55,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (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 01:50:55,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:50:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:50:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 01:50:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 01:50:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:50:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:50:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 01:50:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 01:50:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 01:50:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:50:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:50:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:50:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:50:56,026 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:50:56,027 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-20 01:50:56,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:50:56 BoogieIcfgContainer [2020-07-20 01:50:56,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:50:56,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:50:56,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:50:56,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:50:56,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:50:55" (1/3) ... [2020-07-20 01:50:56,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0bb1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:50:56, skipping insertion in model container [2020-07-20 01:50:56,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:50:55" (2/3) ... [2020-07-20 01:50:56,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0bb1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:50:56, skipping insertion in model container [2020-07-20 01:50:56,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:50:56" (3/3) ... [2020-07-20 01:50:56,040 INFO L109 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2020-07-20 01:50:56,053 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:50:56,065 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:50:56,113 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:50:56,170 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:50:56,173 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:50:56,173 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:50:56,174 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:50:56,174 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:50:56,174 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:50:56,174 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:50:56,174 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:50:56,193 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-20 01:50:56,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 01:50:56,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:50:56,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:50:56,200 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:50:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:50:56,205 INFO L82 PathProgramCache]: Analyzing trace with hash 586040607, now seen corresponding path program 1 times [2020-07-20 01:50:56,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:50:56,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413610787] [2020-07-20 01:50:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@544dc561 [2020-07-20 01:50:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:50:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:50:56,433 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 01:50:56,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413610787] [2020-07-20 01:50:56,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:50:56,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:50:56,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525071135] [2020-07-20 01:50:56,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:50:56,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:50:56,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:50:56,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:50:56,465 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-07-20 01:50:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:50:56,657 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2020-07-20 01:50:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:50:56,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-20 01:50:56,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:50:56,667 INFO L225 Difference]: With dead ends: 45 [2020-07-20 01:50:56,667 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 01:50:56,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:50:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 01:50:56,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 01:50:56,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 01:50:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 01:50:56,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-20 01:50:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:50:56,697 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 01:50:56,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:50:56,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 01:50:56,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 01:50:56,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:50:56,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 01:50:56,752 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-20 01:50:56,752 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:50:56,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:50:56,753 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 01:50:56,753 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 01:50:56,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:50:56,754 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 01:50:56,754 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 01:50:56,754 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 01:50:56,754 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 01:50:56,755 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2020-07-20 01:50:56,755 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-07-20 01:50:56,755 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-20 01:50:56,755 INFO L268 CegarLoopResult]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2020-07-20 01:50:56,756 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-07-20 01:50:56,756 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2020-07-20 01:50:56,756 INFO L268 CegarLoopResult]: For program point L24(lines 24 25) no Hoare annotation was computed. [2020-07-20 01:50:56,756 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-07-20 01:50:56,757 INFO L268 CegarLoopResult]: For program point L22-1(lines 21 23) no Hoare annotation was computed. [2020-07-20 01:50:56,757 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-20 01:50:56,757 INFO L268 CegarLoopResult]: For program point L20-2(lines 20 26) no Hoare annotation was computed. [2020-07-20 01:50:56,757 INFO L264 CegarLoopResult]: At program point L20-3(lines 20 26) the Hoare annotation is: (<= 1 main_~l~0) [2020-07-20 01:50:56,757 INFO L268 CegarLoopResult]: For program point L20-4(lines 13 27) no Hoare annotation was computed. [2020-07-20 01:50:56,758 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-20 01:50:56,758 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-20 01:50:56,758 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-20 01:50:56,758 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-20 01:50:56,758 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-20 01:50:56,759 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-20 01:50:56,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:50:56 BoogieIcfgContainer [2020-07-20 01:50:56,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:50:56,782 INFO L168 Benchmark]: Toolchain (without parser) took 1423.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 130.4 MB in the end (delta: -27.8 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:56,783 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 01:50:56,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.77 ms. Allocated memory is still 137.9 MB. Free memory was 102.2 MB in the beginning and 92.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:56,786 INFO L168 Benchmark]: Boogie Preprocessor took 107.24 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 181.4 MB in the end (delta: -88.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:56,787 INFO L168 Benchmark]: RCFGBuilder took 302.35 ms. Allocated memory is still 201.3 MB. Free memory was 181.4 MB in the beginning and 166.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:56,788 INFO L168 Benchmark]: TraceAbstraction took 745.74 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 130.4 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:56,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.77 ms. Allocated memory is still 137.9 MB. Free memory was 102.2 MB in the beginning and 92.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.24 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 181.4 MB in the end (delta: -88.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 302.35 ms. Allocated memory is still 201.3 MB. Free memory was 181.4 MB in the beginning and 166.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 745.74 ms. Allocated memory is still 201.3 MB. Free memory was 165.3 MB in the beginning and 130.4 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 <= l - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 21 SDslu, 71 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 22 HoareAnnotationTreeSize, 9 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...