/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/ldv-regression/nested_structure_noptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:28:24,221 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 01:28:24,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:28:24,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:28:24,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:28:24,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:28:24,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:28:24,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:28:24,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:28:24,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:28:24,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:28:24,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:28:24,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:28:24,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:28:24,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:28:24,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:28:24,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:28:24,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:28:24,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:28:24,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:28:24,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:28:24,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:28:24,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:28:24,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:28:24,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:28:24,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:28:24,287 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 01:28:24,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:28:24,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:28:24,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:28:24,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:28:24,316 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:28:24,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:28:24,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:28:24,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:28:24,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:28:24,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:28:24,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:28:24,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:28:24,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:28:24,319 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:28:24,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:28:24,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:28:24,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:28:24,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:28:24,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:28:24,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:28:24,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:28:24,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:28:24,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:28:24,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:28:24,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:28:24,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:28:24,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:28:24,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:28:24,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:28:24,326 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 01:28:24,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:28:24,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:28:24,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:28:24,685 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:28:24,685 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:28:24,686 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2020-07-20 01:28:24,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac661598c/c9e69377b04f43cba87d6031442612d1/FLAG260a01e40 [2020-07-20 01:28:25,174 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:28:25,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2020-07-20 01:28:25,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac661598c/c9e69377b04f43cba87d6031442612d1/FLAG260a01e40 [2020-07-20 01:28:25,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac661598c/c9e69377b04f43cba87d6031442612d1 [2020-07-20 01:28:25,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:28:25,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:28:25,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:28:25,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:28:25,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:28:25,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f33b4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25, skipping insertion in model container [2020-07-20 01:28:25,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:28:25,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:28:25,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:28:25,797 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:28:25,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:28:25,844 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:28:25,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25 WrapperNode [2020-07-20 01:28:25,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:28:25,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:28:25,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:28:25,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:28:25,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... [2020-07-20 01:28:25,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:28:25,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:28:25,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:28:25,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:28:25,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:28:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:28:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:28:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 01:28:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:28:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 01:28:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 01:28:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 01:28:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 01:28:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 01:28:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:28:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:28:26,249 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:28:26,250 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 01:28:26,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:28:26 BoogieIcfgContainer [2020-07-20 01:28:26,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:28:26,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:28:26,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:28:26,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:28:26,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:28:25" (1/3) ... [2020-07-20 01:28:26,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a522be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:28:26, skipping insertion in model container [2020-07-20 01:28:26,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:28:25" (2/3) ... [2020-07-20 01:28:26,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a522be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:28:26, skipping insertion in model container [2020-07-20 01:28:26,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:28:26" (3/3) ... [2020-07-20 01:28:26,273 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-1.i [2020-07-20 01:28:26,292 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:28:26,302 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:28:26,342 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:28:26,372 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:28:26,372 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:28:26,372 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:28:26,372 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:28:26,372 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:28:26,373 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:28:26,373 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:28:26,373 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:28:26,394 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-20 01:28:26,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 01:28:26,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:28:26,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:28:26,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:28:26,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:28:26,406 INFO L82 PathProgramCache]: Analyzing trace with hash -715594688, now seen corresponding path program 1 times [2020-07-20 01:28:26,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:28:26,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456908985] [2020-07-20 01:28:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bbd87c8 [2020-07-20 01:28:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:28:26,662 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 01:28:26,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456908985] [2020-07-20 01:28:26,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:28:26,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:28:26,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616036417] [2020-07-20 01:28:26,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:28:26,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:28:26,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:28:26,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:28:26,684 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2020-07-20 01:28:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:28:26,807 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-07-20 01:28:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:28:26,809 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-20 01:28:26,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:28:26,816 INFO L225 Difference]: With dead ends: 25 [2020-07-20 01:28:26,817 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 01:28:26,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:28:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 01:28:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 01:28:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 01:28:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 01:28:26,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-07-20 01:28:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:28:26,848 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 01:28:26,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:28:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 01:28:26,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 01:28:26,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:28:26,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 01:28:26,895 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:28:26,896 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-20 01:28:26,896 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:28:26,896 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:28:26,897 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 01:28:26,897 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 01:28:26,897 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:28:26,897 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (= 4 |main_#t~mem0|) [2020-07-20 01:28:26,898 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-07-20 01:28:26,898 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 33) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-20 01:28:26,898 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 33) no Hoare annotation was computed. [2020-07-20 01:28:26,898 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 33) no Hoare annotation was computed. [2020-07-20 01:28:26,899 INFO L268 CegarLoopResult]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2020-07-20 01:28:26,899 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2020-07-20 01:28:26,899 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2020-07-20 01:28:26,899 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 01:28:26,899 INFO L268 CegarLoopResult]: For program point L3(lines 3 5) no Hoare annotation was computed. [2020-07-20 01:28:26,900 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-07-20 01:28:26,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:28:26 BoogieIcfgContainer [2020-07-20 01:28:26,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:28:26,909 INFO L168 Benchmark]: Toolchain (without parser) took 1314.38 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 103.4 MB in the beginning and 130.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:26,910 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 01:28:26,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.13 ms. Allocated memory is still 145.2 MB. Free memory was 102.9 MB in the beginning and 92.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:26,912 INFO L168 Benchmark]: Boogie Preprocessor took 136.90 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 179.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:26,913 INFO L168 Benchmark]: RCFGBuilder took 276.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 167.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:26,914 INFO L168 Benchmark]: TraceAbstraction took 645.30 ms. Allocated memory is still 202.4 MB. Free memory was 166.2 MB in the beginning and 130.8 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:28:26,918 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 145.2 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.13 ms. Allocated memory is still 145.2 MB. Free memory was 102.9 MB in the beginning and 92.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.90 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 179.7 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 167.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 645.30 ms. Allocated memory is still 202.4 MB. Free memory was 166.2 MB in the beginning and 130.8 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 29 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 19 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 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...