/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:20:35,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:20:35,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:20:35,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:20:35,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:20:35,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:20:35,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:20:35,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:20:35,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:20:35,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:20:35,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:20:35,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:20:35,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:20:35,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:20:35,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:20:35,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:20:35,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:20:35,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:20:35,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:20:35,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:20:35,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:20:35,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:20:35,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:20:35,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:20:35,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:20:35,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:20:35,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:20:35,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:20:35,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:20:35,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:20:35,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:20:35,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:20:35,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:20:35,339 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:20:35,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:20:35,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:20:35,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:20:35,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:20:35,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:20:35,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:20:35,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:20:35,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:20:35,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:20:35,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:20:35,341 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:20:35,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:20:35,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:20:35,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:20:35,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:20:35,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:20:35,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:20:35,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:20:35,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:20:35,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:20:35,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:20:35,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:35,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:20:35,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:20:35,344 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE 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 -> 2 [2020-07-21 20:20:35,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:20:35,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:20:35,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:20:35,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:20:35,666 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:20:35,666 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-07-21 20:20:35,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c92f9ab9e/9fd18ea372164a1eb19cfcbc8679a592/FLAG51f86aa37 [2020-07-21 20:20:36,259 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:20:36,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-07-21 20:20:36,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c92f9ab9e/9fd18ea372164a1eb19cfcbc8679a592/FLAG51f86aa37 [2020-07-21 20:20:36,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c92f9ab9e/9fd18ea372164a1eb19cfcbc8679a592 [2020-07-21 20:20:36,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:20:36,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:20:36,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:20:36,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:20:36,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:20:36,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:36,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6040b81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36, skipping insertion in model container [2020-07-21 20:20:36,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:36,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:20:36,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:20:36,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:20:36,886 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:20:36,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:20:36,921 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:20:36,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36 WrapperNode [2020-07-21 20:20:36,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:20:36,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:20:36,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:20:36,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:20:37,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... [2020-07-21 20:20:37,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:20:37,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:20:37,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:20:37,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:20:37,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:20:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:20:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:20:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 20:20:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-07-21 20:20:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:20:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 20:20:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:20:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:20:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 20:20:37,361 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:20:37,362 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:20:37,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:20:37 BoogieIcfgContainer [2020-07-21 20:20:37,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:20:37,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:20:37,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:20:37,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:20:37,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:20:36" (1/3) ... [2020-07-21 20:20:37,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fc61ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:20:37, skipping insertion in model container [2020-07-21 20:20:37,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:20:36" (2/3) ... [2020-07-21 20:20:37,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fc61ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:20:37, skipping insertion in model container [2020-07-21 20:20:37,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:20:37" (3/3) ... [2020-07-21 20:20:37,374 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-07-21 20:20:37,385 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:20:37,393 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:20:37,407 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:20:37,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:20:37,443 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:20:37,443 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:20:37,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:20:37,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:20:37,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:20:37,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:20:37,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:20:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-21 20:20:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-21 20:20:37,469 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:20:37,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:20:37,471 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:20:37,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:20:37,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2020-07-21 20:20:37,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:20:37,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709060719] [2020-07-21 20:20:37,483 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:37,626 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:20:37,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:20:37,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 20:20:37,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:20:37,748 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:20:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:20:37,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:20:37,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709060719] [2020-07-21 20:20:37,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:20:37,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 20:20:37,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239148864] [2020-07-21 20:20:37,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:20:37,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:20:37,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:20:37,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:20:37,810 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-07-21 20:20:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:20:37,987 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-21 20:20:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:20:37,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-21 20:20:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:20:37,999 INFO L225 Difference]: With dead ends: 55 [2020-07-21 20:20:38,000 INFO L226 Difference]: Without dead ends: 26 [2020-07-21 20:20:38,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:20:38,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-21 20:20:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-07-21 20:20:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-21 20:20:38,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-07-21 20:20:38,049 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-07-21 20:20:38,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:20:38,050 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-07-21 20:20:38,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:20:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-07-21 20:20:38,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-21 20:20:38,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:20:38,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:20:38,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:38,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:20:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:20:38,269 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2020-07-21 20:20:38,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:20:38,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227480052] [2020-07-21 20:20:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:38,349 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:20:38,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:20:38,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-21 20:20:38,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:20:38,438 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:20:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:20:38,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:20:38,502 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:20:38,509 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:20:38,538 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:20:38,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:20:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:20:38,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227480052] [2020-07-21 20:20:38,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:20:38,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2020-07-21 20:20:38,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243595130] [2020-07-21 20:20:38,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:20:38,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:20:38,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:20:38,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:20:38,573 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 8 states. [2020-07-21 20:20:38,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:20:38,716 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-07-21 20:20:38,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:20:38,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-07-21 20:20:38,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:20:38,718 INFO L225 Difference]: With dead ends: 36 [2020-07-21 20:20:38,718 INFO L226 Difference]: Without dead ends: 34 [2020-07-21 20:20:38,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 20:20:38,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-21 20:20:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-21 20:20:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-21 20:20:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-07-21 20:20:38,728 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2020-07-21 20:20:38,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:20:38,729 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-07-21 20:20:38,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:20:38,729 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-07-21 20:20:38,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 20:20:38,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:20:38,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:20:38,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:38,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:20:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:20:38,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2027370867, now seen corresponding path program 2 times [2020-07-21 20:20:38,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:20:38,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354460753] [2020-07-21 20:20:38,947 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:38,987 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:20:38,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:20:38,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:20:38,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:20:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:20:39,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:20:39,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354460753] [2020-07-21 20:20:39,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:20:39,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 20:20:39,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876125146] [2020-07-21 20:20:39,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:20:39,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:20:39,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:20:39,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:20:39,050 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2020-07-21 20:20:39,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:20:39,124 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-07-21 20:20:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:20:39,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-07-21 20:20:39,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:20:39,126 INFO L225 Difference]: With dead ends: 35 [2020-07-21 20:20:39,126 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:20:39,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-07-21 20:20:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:20:39,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:20:39,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:20:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:20:39,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-07-21 20:20:39,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:20:39,129 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:20:39,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:20:39,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:20:39,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:20:39,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:20:39,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:20:39,557 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:20:39,558 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:20:39,558 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:20:39,558 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-07-21 20:20:39,558 INFO L268 CegarLoopResult]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2020-07-21 20:20:39,558 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse1 (+ |glob2_#in~pathbuf.offset| 4)) (.cse0 (= ~tmp~0.base glob2_~p~0.base))) (or (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse0) (not (<= .cse1 ~tmp~0.offset)) (not (<= |glob2_#in~pathlim.offset| .cse1)) (let ((.cse2 (+ glob2_~p~0.offset 4))) (and (<= glob2_~pathlim.offset .cse2) .cse0 (<= .cse2 ~tmp~0.offset))))) [2020-07-21 20:20:39,559 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-07-21 20:20:39,559 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-07-21 20:20:39,559 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 22) the Hoare annotation is: (let ((.cse1 (+ |glob2_#in~pathbuf.offset| 4)) (.cse0 (= ~tmp~0.base glob2_~p~0.base))) (or (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (<= (+ glob2_~pathlim.offset 4) glob2_~p~0.offset) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse0) (not (<= .cse1 ~tmp~0.offset)) (not (<= |glob2_#in~pathlim.offset| .cse1)) (let ((.cse2 (+ glob2_~p~0.offset 4))) (and (<= glob2_~pathlim.offset .cse2) .cse0 (<= .cse2 ~tmp~0.offset))))) [2020-07-21 20:20:39,559 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2020-07-21 20:20:39,559 INFO L268 CegarLoopResult]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2020-07-21 20:20:39,559 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:20:39,560 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 20:20:39,560 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:20:39,560 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:20:39,560 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2020-07-21 20:20:39,560 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2020-07-21 20:20:39,560 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2020-07-21 20:20:39,561 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (+ |main_~#pathbuf~0.offset| 4))) (and (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.offset .cse0) (<= .cse0 ~tmp~0.offset))) [2020-07-21 20:20:39,561 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-07-21 20:20:39,561 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-21 20:20:39,561 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-21 20:20:39,561 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-21 20:20:39,561 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-21 20:20:39,562 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-21 20:20:39,562 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-21 20:20:39,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:20:39 BoogieIcfgContainer [2020-07-21 20:20:39,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:20:39,585 INFO L168 Benchmark]: Toolchain (without parser) took 2914.27 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 101.7 MB in the beginning and 140.9 MB in the end (delta: -39.2 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:20:39,586 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 20:20:39,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.97 ms. Allocated memory is still 144.7 MB. Free memory was 101.2 MB in the beginning and 91.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:20:39,588 INFO L168 Benchmark]: Boogie Preprocessor took 121.25 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.0 MB in the beginning and 179.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:20:39,588 INFO L168 Benchmark]: RCFGBuilder took 322.62 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 164.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:20:39,590 INFO L168 Benchmark]: TraceAbstraction took 2214.72 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 164.1 MB in the beginning and 140.9 MB in the end (delta: 23.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:20:39,593 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.97 ms. Allocated memory is still 144.7 MB. Free memory was 101.2 MB in the beginning and 91.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.25 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.0 MB in the beginning and 179.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 322.62 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 164.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2214.72 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 164.1 MB in the beginning and 140.9 MB in the end (delta: 23.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 18]: Loop Invariant Derived loop invariant: ((((!(tmp == pathbuf) || pathlim + 4 <= p) || ((p <= tmp && pathlim <= p) && tmp == p)) || !(pathbuf + 4 <= tmp)) || !(pathlim <= pathbuf + 4)) || ((pathlim <= p + 4 && tmp == p) && p + 4 <= tmp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 39 SDslu, 166 SDs, 0 SdLazy, 149 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 107 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5728 SizeOfPredicates, 19 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 20/24 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...