/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/volatile_alias.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:41:05,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:41:05,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:41:05,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 16:41:05,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:41:05,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:41:05,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:41:05,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:41:05,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:41:05,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:41:05,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:41:05,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:41:05,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:41:05,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:41:05,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:41:05,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:41:05,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:41:05,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:41:05,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:41:05,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:41:05,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:41:05,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:41:05,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:41:05,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:41:05,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:41:05,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:41:05,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:41:05,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:41:05,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:41:05,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:41:05,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:41:05,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:41:05,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:41:05,810 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:41:05,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:41:05,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:41:05,810 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:41:05,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:41:05,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:41:05,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:41:05,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:41:05,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:41:05,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:41:05,812 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:41:06,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:41:06,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:41:06,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:41:06,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:41:06,320 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:41:06,322 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/volatile_alias.c_1.i [2020-09-04 16:41:06,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2990aa29/d2d26cb4113147688d0bb05827a0bc62/FLAG24b4aff21 [2020-09-04 16:41:07,061 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:41:07,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/volatile_alias.c_1.i [2020-09-04 16:41:07,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2990aa29/d2d26cb4113147688d0bb05827a0bc62/FLAG24b4aff21 [2020-09-04 16:41:07,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2990aa29/d2d26cb4113147688d0bb05827a0bc62 [2020-09-04 16:41:07,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:41:07,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:41:07,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:41:07,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:41:07,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:41:07,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4f649f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07, skipping insertion in model container [2020-09-04 16:41:07,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:41:07,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:41:07,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:41:07,734 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:41:07,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:41:07,776 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:41:07,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07 WrapperNode [2020-09-04 16:41:07,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:41:07,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:41:07,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:41:07,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:41:07,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... [2020-09-04 16:41:07,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:41:07,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:41:07,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:41:07,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:41:07,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:41:07,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:41:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:41:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:41:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:41:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:41:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:41:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 16:41:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:41:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:41:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:41:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:41:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:41:08,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:41:08,272 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:41:08,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:41:08 BoogieIcfgContainer [2020-09-04 16:41:08,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:41:08,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:41:08,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:41:08,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:41:08,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:41:07" (1/3) ... [2020-09-04 16:41:08,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588413d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:41:08, skipping insertion in model container [2020-09-04 16:41:08,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:41:07" (2/3) ... [2020-09-04 16:41:08,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588413d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:41:08, skipping insertion in model container [2020-09-04 16:41:08,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:41:08" (3/3) ... [2020-09-04 16:41:08,291 INFO L109 eAbstractionObserver]: Analyzing ICFG volatile_alias.c_1.i [2020-09-04 16:41:08,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:41:08,319 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:41:08,348 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:41:08,406 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:41:08,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:41:08,408 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:41:08,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:41:08,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:41:08,409 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:41:08,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:41:08,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:41:08,465 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-04 16:41:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-04 16:41:08,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:41:08,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:41:08,499 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:41:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:41:08,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1049886255, now seen corresponding path program 1 times [2020-09-04 16:41:08,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:41:08,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840155727] [2020-09-04 16:41:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:41:08,601 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:41:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:08,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:41:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:41:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:41:08,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840155727] [2020-09-04 16:41:08,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:41:08,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 16:41:08,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095349140] [2020-09-04 16:41:08,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 16:41:08,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:41:08,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 16:41:08,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:41:08,973 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2020-09-04 16:41:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:41:09,194 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2020-09-04 16:41:09,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 16:41:09,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-04 16:41:09,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:41:09,209 INFO L225 Difference]: With dead ends: 34 [2020-09-04 16:41:09,210 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:41:09,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 16:41:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:41:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:41:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:41:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:41:09,256 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-04 16:41:09,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:41:09,257 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:41:09,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 16:41:09,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:41:09,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:41:09,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:41:09,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:41:09,452 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,452 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,452 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,453 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 16:41:09,453 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,453 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,453 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,454 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,454 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:41:09,454 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 23) the Hoare annotation is: false [2020-09-04 16:41:09,454 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 26) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-04 16:41:09,455 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 16 26) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) [2020-09-04 16:41:09,455 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: false [2020-09-04 16:41:09,455 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) [2020-09-04 16:41:09,455 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= main_~p~0.base |main_~#a~0.base|) (= |main_~#a~0.offset| main_~p~0.offset) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 4)) [2020-09-04 16:41:09,456 INFO L264 CegarLoopResult]: At program point L22-1(lines 22 24) the Hoare annotation is: (and (= |main_#t~mem1| 0) (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) [2020-09-04 16:41:09,456 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= main_~p~0.base |main_~#a~0.base|) (= |main_~#a~0.offset| main_~p~0.offset) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 4)) [2020-09-04 16:41:09,456 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and (= main_~p~0.base |main_~#a~0.base|) (= |main_~#a~0.offset| main_~p~0.offset) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 4) (= |main_#t~mem0| 4)) [2020-09-04 16:41:09,457 INFO L264 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: false [2020-09-04 16:41:09,457 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and (= main_~p~0.base |main_~#a~0.base|) (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) (= |main_~#a~0.offset| main_~p~0.offset) (= |main_#t~mem0| 4)) [2020-09-04 16:41:09,457 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-09-04 16:41:09,457 INFO L264 CegarLoopResult]: At program point L22-4(line 22) the Hoare annotation is: (and (= |main_#t~mem1| 0) (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0)) [2020-09-04 16:41:09,458 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 4) [2020-09-04 16:41:09,458 INFO L264 CegarLoopResult]: At program point L22-5(lines 22 24) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) [2020-09-04 16:41:09,458 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) [2020-09-04 16:41:09,458 INFO L264 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) [2020-09-04 16:41:09,459 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 16 26) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 0) [2020-09-04 16:41:09,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:41:09,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:41:09 BoogieIcfgContainer [2020-09-04 16:41:09,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:41:09,494 INFO L168 Benchmark]: Toolchain (without parser) took 2060.47 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.8 MB in the beginning and 111.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:09,495 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:41:09,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.28 ms. Allocated memory is still 138.9 MB. Free memory was 103.4 MB in the beginning and 93.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:09,497 INFO L168 Benchmark]: Boogie Preprocessor took 38.56 ms. Allocated memory is still 138.9 MB. Free memory was 93.9 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:09,498 INFO L168 Benchmark]: RCFGBuilder took 462.48 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 169.1 MB in the end (delta: -76.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:09,499 INFO L168 Benchmark]: TraceAbstraction took 1209.05 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 111.3 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:41:09,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.28 ms. Allocated memory is still 138.9 MB. Free memory was 103.4 MB in the beginning and 93.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.56 ms. Allocated memory is still 138.9 MB. Free memory was 93.9 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.48 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 169.1 MB in the end (delta: -76.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1209.05 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 111.3 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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 - ProcedureContractResult [Line: 16]: Procedure Contract for main [2020-09-04 16:41:09,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:41:09,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure main: unknown-#memory_int-unknown[p][p] == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 10 SDslu, 52 SDs, 0 SdLazy, 52 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 27 PreInvPairs, 34 NumberOfFragments, 158 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...