/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/test07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:24:08,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:24:08,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:24:08,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:24:08,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:24:08,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:24:08,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:24:08,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:24:08,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:24:08,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:24:08,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:24:08,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:24:08,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:24:08,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:24:08,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:24:08,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:24:08,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:24:08,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:24:08,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:24:08,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:24:08,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:24:08,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:24:08,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:24:08,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:24:08,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:24:08,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:24:08,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:24:08,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:24:08,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:24:08,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:24:08,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:24:08,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:24:08,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:24:08,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:24:08,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:24:08,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:24:08,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:24:08,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:24:08,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:24:08,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:24:08,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:24:08,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:24:08,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:24:08,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:24:08,294 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:24:08,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:24:08,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:24:08,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:24:08,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:24:08,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:24:08,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:24:08,297 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:24:08,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:24:08,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:24:08,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:24:08,599 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:24:08,600 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:24:08,600 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test07.c [2020-07-07 13:24:08,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef572a9a1/2d901c0c478f411fb4317549a54fc3e4/FLAGe728d4552 [2020-07-07 13:24:09,117 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:24:09,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test07.c [2020-07-07 13:24:09,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef572a9a1/2d901c0c478f411fb4317549a54fc3e4/FLAGe728d4552 [2020-07-07 13:24:09,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef572a9a1/2d901c0c478f411fb4317549a54fc3e4 [2020-07-07 13:24:09,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:24:09,537 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:24:09,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:09,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:24:09,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:24:09,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717f8173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09, skipping insertion in model container [2020-07-07 13:24:09,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:24:09,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:24:09,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:09,760 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:24:09,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:09,800 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:24:09,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09 WrapperNode [2020-07-07 13:24:09,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:09,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:24:09,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:24:09,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:24:09,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (1/1) ... [2020-07-07 13:24:09,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:24:09,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:24:09,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:24:09,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:24:09,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (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 [2020-07-07 13:24:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:24:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:24:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-07 13:24:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:24:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:24:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-07 13:24:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:24:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:24:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:24:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:24:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:24:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 13:24:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:24:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:24:10,335 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:24:10,335 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 13:24:10,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:10 BoogieIcfgContainer [2020-07-07 13:24:10,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:24:10,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:24:10,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:24:10,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:24:10,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:24:09" (1/3) ... [2020-07-07 13:24:10,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ef9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:10, skipping insertion in model container [2020-07-07 13:24:10,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:09" (2/3) ... [2020-07-07 13:24:10,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ef9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:10, skipping insertion in model container [2020-07-07 13:24:10,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:10" (3/3) ... [2020-07-07 13:24:10,353 INFO L109 eAbstractionObserver]: Analyzing ICFG test07.c [2020-07-07 13:24:10,366 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:24:10,392 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:24:10,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:24:10,440 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:24:10,440 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:24:10,441 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:24:10,441 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:24:10,441 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:24:10,441 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:24:10,441 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:24:10,441 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:24:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-07-07 13:24:10,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-07 13:24:10,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:10,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:24:10,472 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:10,479 INFO L82 PathProgramCache]: Analyzing trace with hash 56438835, now seen corresponding path program 1 times [2020-07-07 13:24:10,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:10,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88828167] [2020-07-07 13:24:10,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:11,407 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:11,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88828167] [2020-07-07 13:24:11,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:11,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-07-07 13:24:11,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800602636] [2020-07-07 13:24:11,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-07 13:24:11,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:11,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-07 13:24:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-07-07 13:24:11,452 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 16 states. [2020-07-07 13:24:12,256 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-07-07 13:24:12,424 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-07-07 13:24:12,590 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-07-07 13:24:12,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:12,892 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-07-07 13:24:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-07 13:24:12,894 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 41 [2020-07-07 13:24:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:12,906 INFO L225 Difference]: With dead ends: 67 [2020-07-07 13:24:12,906 INFO L226 Difference]: Without dead ends: 43 [2020-07-07 13:24:12,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2020-07-07 13:24:12,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-07 13:24:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-07-07 13:24:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-07 13:24:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2020-07-07 13:24:12,954 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 41 [2020-07-07 13:24:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:12,955 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2020-07-07 13:24:12,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-07 13:24:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2020-07-07 13:24:12,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-07 13:24:12,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:12,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:24:12,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:24:12,958 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1088655632, now seen corresponding path program 1 times [2020-07-07 13:24:12,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:12,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172892956] [2020-07-07 13:24:12,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:24:13,192 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:13,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172892956] [2020-07-07 13:24:13,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:13,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 13:24:13,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484904126] [2020-07-07 13:24:13,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 13:24:13,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:13,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 13:24:13,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 13:24:13,196 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand 10 states. [2020-07-07 13:24:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:13,421 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2020-07-07 13:24:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 13:24:13,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-07-07 13:24:13,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:13,423 INFO L225 Difference]: With dead ends: 43 [2020-07-07 13:24:13,423 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:24:13,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:24:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:24:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:24:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:24:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:24:13,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-07-07 13:24:13,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:13,427 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:24:13,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 13:24:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:24:13,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:24:13,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:24:13,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:24:14,500 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2020-07-07 13:24:15,125 INFO L264 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,125 INFO L264 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,126 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-07-07 13:24:15,126 INFO L264 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-07-07 13:24:15,126 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,126 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p2~0.base |old(~p2~0.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|)) [2020-07-07 13:24:15,126 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,127 INFO L264 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-07-07 13:24:15,127 INFO L264 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,127 INFO L264 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,127 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,128 INFO L264 CegarLoopResult]: At program point fFINAL(lines 7 15) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (not (= ~p2~0.offset |~#b~0.offset|)) (and (= ~p2~0.offset ~p1~0.offset) (<= f_~v~0 1) (<= 1 |f_#res|) (<= 1 f_~v~0) (= ~p2~0.base ~p1~0.base)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,128 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (or (not (= ~p2~0.base |~#b~0.base|)) (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (= |~#a~0.base| ~p2~0.base) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#a~0.offset| |old(~p1~0.offset)|)) (not (= 1 (select |#valid| |~#a~0.base|))) (not (= |old(~p1~0.base)| |~#a~0.base|))) [2020-07-07 13:24:15,128 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (= ~p2~0.offset ~p1~0.offset) (<= f_~v~0 1) (<= 1 f_~v~0) (= ~p2~0.base ~p1~0.base)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,128 INFO L264 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (<= 1 f_~v~0)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,129 INFO L264 CegarLoopResult]: At program point L9(lines 9 14) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (<= 1 f_~v~0)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,129 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|))) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,129 INFO L264 CegarLoopResult]: At program point fEXIT(lines 7 15) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (not (= ~p2~0.offset |~#b~0.offset|)) (and (= ~p2~0.offset ~p1~0.offset) (<= f_~v~0 1) (<= 1 |f_#res|) (<= 1 f_~v~0) (= ~p2~0.base ~p1~0.base)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,130 INFO L264 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= 1 |f_#t~mem1|) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)))) [2020-07-07 13:24:15,130 INFO L264 CegarLoopResult]: At program point L8-2(line 8) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem0| |f_#t~mem2|) (= 1 |f_#t~mem1|) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|))) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,130 INFO L264 CegarLoopResult]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,131 INFO L264 CegarLoopResult]: At program point L8-3(line 8) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (<= 1 f_~v~0) (= |f_#t~mem0| |f_#t~mem2|) (= 1 |f_#t~mem1|) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|))) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,131 INFO L264 CegarLoopResult]: At program point L8-4(line 8) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (<= 1 f_~v~0)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,131 INFO L264 CegarLoopResult]: At program point L8-5(line 8) the Hoare annotation is: (or (not (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset))) (and (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (<= 1 f_~v~0)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~p2~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= 1 (select |#valid| |~#a~0.base|))) (= ~p2~0.base |~#a~0.base|) (not (= |old(~p1~0.offset)| |~#a~0.offset|))) [2020-07-07 13:24:15,131 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,132 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,132 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:24:15,132 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= 1 (select |#valid| |~#a~0.base|))) [2020-07-07 13:24:15,132 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-07-07 13:24:15,132 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p2~0.offset ~p1~0.offset) (= ~p2~0.base ~p1~0.base) (not (= 0 (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))))) [2020-07-07 13:24:15,133 INFO L264 CegarLoopResult]: At program point L29-1(lines 29 31) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (not (= 0 |main_#t~mem6|)) (= ~p2~0.offset ~p1~0.offset) (= ~p2~0.base ~p1~0.base) (not (= 0 (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))))) [2020-07-07 13:24:15,133 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,133 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-07 13:24:15,133 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (not (= 0 |main_#t~ret5|)) (= ~p2~0.offset ~p1~0.offset) (= ~p2~0.base ~p1~0.base))) [2020-07-07 13:24:15,133 INFO L271 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: true [2020-07-07 13:24:15,134 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,134 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (not (= 0 |main_#t~ret5|)) (= ~p2~0.offset ~p1~0.offset) (= ~p2~0.base ~p1~0.base))) [2020-07-07 13:24:15,134 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 17 37) the Hoare annotation is: true [2020-07-07 13:24:15,134 INFO L264 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,134 INFO L264 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (and (not (= 0 |main_#t~ret5|)) (= ~p2~0.offset ~p1~0.offset) (= ~p2~0.base ~p1~0.base) (not (= 0 (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|)))) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-07 13:24:15,135 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,135 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,135 INFO L264 CegarLoopResult]: At program point L25-3(line 25) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,135 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 17 37) the Hoare annotation is: true [2020-07-07 13:24:15,136 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-07 13:24:15,136 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-07 13:24:15,136 INFO L264 CegarLoopResult]: At program point L30(lines 17 37) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-07 13:24:15,137 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (or (and (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= ~p2~0.base |old(~p2~0.base)|)) (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|)))) [2020-07-07 13:24:15,137 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,137 INFO L264 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= 1 (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset)) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p2~0.offset |~#b~0.offset|))) [2020-07-07 13:24:15,137 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (= |~#b~0.base| |~#a~0.base|) (not (= 1 (select |#valid| |~#a~0.base|))) (and (= ~p1~0.offset |~#a~0.offset|) (= |~#a~0.base| ~p1~0.base))) [2020-07-07 13:24:15,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:15,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:15,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:24:15 BoogieIcfgContainer [2020-07-07 13:24:15,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:24:15,166 INFO L168 Benchmark]: Toolchain (without parser) took 5628.97 ms. Allocated memory was 145.2 MB in the beginning and 282.6 MB in the end (delta: 137.4 MB). Free memory was 104.0 MB in the beginning and 190.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 144.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:15,167 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 13:24:15,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.20 ms. Allocated memory is still 145.2 MB. Free memory was 103.8 MB in the beginning and 94.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:15,169 INFO L168 Benchmark]: Boogie Preprocessor took 155.72 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 94.0 MB in the beginning and 181.1 MB in the end (delta: -87.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:15,170 INFO L168 Benchmark]: RCFGBuilder took 383.90 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 163.2 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:15,172 INFO L168 Benchmark]: TraceAbstraction took 4820.83 ms. Allocated memory was 202.9 MB in the beginning and 282.6 MB in the end (delta: 79.7 MB). Free memory was 162.5 MB in the beginning and 190.9 MB in the end (delta: -28.4 MB). Peak memory consumption was 145.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:15,176 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.20 ms. Allocated memory is still 145.2 MB. Free memory was 103.8 MB in the beginning and 94.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.72 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 94.0 MB in the beginning and 181.1 MB in the end (delta: -87.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.90 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 163.2 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4820.83 ms. Allocated memory was 202.9 MB in the beginning and 282.6 MB in the end (delta: 79.7 MB). Free memory was 162.5 MB in the beginning and 190.9 MB in the end (delta: -28.4 MB). Peak memory consumption was 145.3 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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: 17]: Loop Invariant Derived loop invariant: a == b || !(1 == \valid[a]) - ProcedureContractResult [Line: 7]: Procedure Contract for f [2020-07-07 13:24:15,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:15,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:15,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:15,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure f: ((((((!(1 == unknown-#memory_int-unknown[a := unknown-#memory_int-unknown[a][a := 5]][p2][p2]) || !(p2 == b)) || ((((p2 == p1 && v <= 1) && 1 <= \result) && 1 <= v) && p2 == p1)) || !(b == p2)) || !(\old(p1) == a)) || !(1 == \valid[a])) || p2 == a) || !(\old(p1) == a) - ProcedureContractResult [Line: 17]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 144 SDslu, 270 SDs, 0 SdLazy, 371 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 51 PreInvPairs, 64 NumberOfFragments, 1400 HoareAnnotationTreeSize, 51 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 51 FomulaSimplificationsInter, 1096 FormulaSimplificationTreeSizeReductionInter, 1.5s 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...