/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 NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -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 [2020-07-20 17:43:15,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:43:15,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:43:15,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:43:15,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:43:15,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:43:15,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:43:15,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:43:15,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:43:15,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:43:15,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:43:15,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:43:15,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:43:15,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:43:15,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:43:15,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:43:15,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:43:15,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:43:15,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:43:15,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:43:15,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:43:15,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:43:15,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:43:15,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:43:15,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:43:15,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:43:15,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:43:15,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:43:15,555 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 17:43:15,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:43:15,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:43:15,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:43:15,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:43:15,595 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:43:15,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:43:15,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:43:15,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:43:15,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:43:15,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:43:15,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:43:15,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:43:15,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:43:15,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:43:15,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:43:15,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:43:15,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:43:15,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:43:15,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:43:15,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:43:15,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:43:15,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:43:15,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:43:15,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:43:15,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:43:15,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:43:15,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:43:15,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:43:15,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:43:15,602 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 -> 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 [2020-07-20 17:43:15,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:43:15,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:43:15,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:43:15,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:43:15,929 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:43:15,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-07-20 17:43:15,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b7a77ff/cd81e0bcc2fe45b3b77528cfeba09490/FLAG2a9f77f06 [2020-07-20 17:43:16,478 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:43:16,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-07-20 17:43:16,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b7a77ff/cd81e0bcc2fe45b3b77528cfeba09490/FLAG2a9f77f06 [2020-07-20 17:43:16,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b7a77ff/cd81e0bcc2fe45b3b77528cfeba09490 [2020-07-20 17:43:16,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:43:16,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:43:16,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:43:16,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:43:16,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:43:16,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:43:16" (1/1) ... [2020-07-20 17:43:16,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dca620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:16, skipping insertion in model container [2020-07-20 17:43:16,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:43:16" (1/1) ... [2020-07-20 17:43:16,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:43:16,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:43:17,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:43:17,036 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:43:17,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:43:17,073 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:43:17,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17 WrapperNode [2020-07-20 17:43:17,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:43:17,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:43:17,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:43:17,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:43:17,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (1/1) ... [2020-07-20 17:43:17,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:43:17,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:43:17,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:43:17,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:43:17,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (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 17:43:17,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:43:17,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:43:17,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 17:43:17,273 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-07-20 17:43:17,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:43:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:43:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 17:43:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-07-20 17:43:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 17:43:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:43:17,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 17:43:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 17:43:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:43:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:43:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 17:43:17,575 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:43:17,576 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:43:17,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:43:17 BoogieIcfgContainer [2020-07-20 17:43:17,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:43:17,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:43:17,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:43:17,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:43:17,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:43:16" (1/3) ... [2020-07-20 17:43:17,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148bd537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:43:17, skipping insertion in model container [2020-07-20 17:43:17,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:43:17" (2/3) ... [2020-07-20 17:43:17,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148bd537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:43:17, skipping insertion in model container [2020-07-20 17:43:17,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:43:17" (3/3) ... [2020-07-20 17:43:17,589 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-07-20 17:43:17,600 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:43:17,608 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:43:17,622 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:43:17,658 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:43:17,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:43:17,659 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:43:17,659 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:43:17,659 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:43:17,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:43:17,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:43:17,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:43:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-20 17:43:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 17:43:17,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:43:17,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:43:17,684 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:43:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:43:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2020-07-20 17:43:17,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:43:17,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393843797] [2020-07-20 17:43:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:43:17,818 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:43:17,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:43:17,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:43:17,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:43:17,952 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:43:17,991 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 17:43:17,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:43:17,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393843797] [2020-07-20 17:43:17,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:43:17,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 17:43:17,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099416517] [2020-07-20 17:43:18,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:43:18,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:43:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:43:18,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:43:18,020 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-07-20 17:43:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:43:18,204 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-20 17:43:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:43:18,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-20 17:43:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:43:18,217 INFO L225 Difference]: With dead ends: 55 [2020-07-20 17:43:18,218 INFO L226 Difference]: Without dead ends: 26 [2020-07-20 17:43:18,223 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 [2020-07-20 17:43:18,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-20 17:43:18,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-07-20 17:43:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-20 17:43:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-07-20 17:43:18,273 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-07-20 17:43:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:43:18,273 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-07-20 17:43:18,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:43:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-07-20 17:43:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-20 17:43:18,275 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:43:18,275 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:43:18,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:43:18,491 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:43:18,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:43:18,492 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2020-07-20 17:43:18,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:43:18,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100083997] [2020-07-20 17:43:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:43:18,553 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:43:18,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:43:18,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 17:43:18,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:43:18,632 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:43:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:43:18,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:43:18,707 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:43:18,716 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:43:18,746 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:43:18,757 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:43:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:43:18,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100083997] [2020-07-20 17:43:18,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:43:18,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2020-07-20 17:43:18,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880371417] [2020-07-20 17:43:18,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:43:18,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:43:18,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:43:18,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:43:18,780 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 8 states. [2020-07-20 17:43:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:43:18,944 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-07-20 17:43:18,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:43:18,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-07-20 17:43:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:43:18,947 INFO L225 Difference]: With dead ends: 36 [2020-07-20 17:43:18,947 INFO L226 Difference]: Without dead ends: 34 [2020-07-20 17:43:18,948 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 [2020-07-20 17:43:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-20 17:43:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-20 17:43:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-20 17:43:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-07-20 17:43:18,957 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2020-07-20 17:43:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:43:18,958 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-07-20 17:43:18,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:43:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-07-20 17:43:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-20 17:43:18,959 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:43:18,960 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:43:19,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:43:19,173 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:43:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:43:19,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2027370867, now seen corresponding path program 2 times [2020-07-20 17:43:19,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:43:19,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766835505] [2020-07-20 17:43:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:43:19,236 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:43:19,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:43:19,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 17:43:19,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:43:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 17:43:19,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:43:19,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766835505] [2020-07-20 17:43:19,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:43:19,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 17:43:19,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719009989] [2020-07-20 17:43:19,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:43:19,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:43:19,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:43:19,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:43:19,321 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2020-07-20 17:43:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:43:19,384 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-07-20 17:43:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:43:19,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-07-20 17:43:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:43:19,385 INFO L225 Difference]: With dead ends: 35 [2020-07-20 17:43:19,385 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:43:19,387 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 [2020-07-20 17:43:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:43:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:43:19,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:43:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:43:19,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-07-20 17:43:19,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:43:19,388 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:43:19,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:43:19,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:43:19,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:43:19,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:43:19,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:43:19,836 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:43:19,836 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:43:19,836 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:43:19,837 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-07-20 17:43:19,837 INFO L268 CegarLoopResult]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2020-07-20 17:43:19,837 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))))) [2020-07-20 17:43:19,837 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-07-20 17:43:19,837 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-07-20 17:43:19,838 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))))) [2020-07-20 17:43:19,838 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2020-07-20 17:43:19,838 INFO L268 CegarLoopResult]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2020-07-20 17:43:19,838 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:43:19,838 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 17:43:19,838 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:43:19,839 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:43:19,839 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2020-07-20 17:43:19,839 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2020-07-20 17:43:19,839 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2020-07-20 17:43:19,839 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))) [2020-07-20 17:43:19,839 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-07-20 17:43:19,840 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-20 17:43:19,840 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-20 17:43:19,840 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-20 17:43:19,840 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-20 17:43:19,840 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-20 17:43:19,841 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-20 17:43:19,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:43:19 BoogieIcfgContainer [2020-07-20 17:43:19,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:43:19,865 INFO L168 Benchmark]: Toolchain (without parser) took 3071.27 ms. Allocated memory was 144.7 MB in the beginning and 234.4 MB in the end (delta: 89.7 MB). Free memory was 102.1 MB in the beginning and 140.9 MB in the end (delta: -38.7 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:43:19,866 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:43:19,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.52 ms. Allocated memory is still 144.7 MB. Free memory was 101.7 MB in the beginning and 91.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:43:19,868 INFO L168 Benchmark]: Boogie Preprocessor took 123.48 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 91.9 MB in the beginning and 181.3 MB in the end (delta: -89.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:43:19,869 INFO L168 Benchmark]: RCFGBuilder took 381.81 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 165.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:43:19,870 INFO L168 Benchmark]: TraceAbstraction took 2281.26 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 165.2 MB in the beginning and 140.9 MB in the end (delta: 24.3 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:43:19,875 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.52 ms. Allocated memory is still 144.7 MB. Free memory was 101.7 MB in the beginning and 91.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.48 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 91.9 MB in the beginning and 181.3 MB in the end (delta: -89.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 381.81 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 165.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2281.26 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 165.2 MB in the beginning and 140.9 MB in the end (delta: 24.3 MB). Peak memory consumption was 55.8 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: 1.9s, 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, 9 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5728 SizeOfPredicates, 19 NumberOfNonLiveVariables, 297 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...