/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/test24-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:24:30,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:24:30,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:24:30,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-07 13:24:30,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:24:30,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:24:30,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:24:30,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:24:30,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:24:30,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:24:30,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:24:30,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:24:30,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:24:30,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:24:30,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:24:30,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:24:30,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:24:30,877 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 13:24:30,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:24:30,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:24:30,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:24:30,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:24:30,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:24:30,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:24:30,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:24:30,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:24:30,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:24:30,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:24:30,907 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:24:30,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:24:30,907 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:24:30,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:24:30,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:24:30,908 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:24:30,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:24:30,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:24:30,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:24:30,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:24:30,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:24:30,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:24:30,909 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:24:31,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:24:31,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:24:31,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:24:31,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:24:31,213 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:24:31,214 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test24-1.c [2020-07-07 13:24:31,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65db6464/a52c7c034e5d4b4ab21307fd07273ea1/FLAGc71cd185a [2020-07-07 13:24:31,782 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:24:31,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test24-1.c [2020-07-07 13:24:31,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65db6464/a52c7c034e5d4b4ab21307fd07273ea1/FLAGc71cd185a [2020-07-07 13:24:32,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65db6464/a52c7c034e5d4b4ab21307fd07273ea1 [2020-07-07 13:24:32,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:24:32,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:24:32,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:32,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:24:32,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:24:32,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e30c4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32, skipping insertion in model container [2020-07-07 13:24:32,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:24:32,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:24:32,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:32,356 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:24:32,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:24:32,390 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:24:32,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32 WrapperNode [2020-07-07 13:24:32,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:24:32,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:24:32,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:24:32,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:24:32,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (1/1) ... [2020-07-07 13:24:32,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:24:32,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:24:32,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:24:32,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:24:32,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (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 13:24:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:24:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:24:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-07-07 13:24:32,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:24:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:24:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:24:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-07 13:24:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:24:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:24:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:24:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:24:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:24:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:24:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:24:32,842 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:24:32,843 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:24:32,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:32 BoogieIcfgContainer [2020-07-07 13:24:32,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:24:32,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:24:32,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:24:32,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:24:32,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:24:32" (1/3) ... [2020-07-07 13:24:32,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f293e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:32, skipping insertion in model container [2020-07-07 13:24:32,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:24:32" (2/3) ... [2020-07-07 13:24:32,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f293e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:24:32, skipping insertion in model container [2020-07-07 13:24:32,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:24:32" (3/3) ... [2020-07-07 13:24:32,859 INFO L109 eAbstractionObserver]: Analyzing ICFG test24-1.c [2020-07-07 13:24:32,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:24:32,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:24:32,908 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:24:32,946 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:24:32,947 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:24:32,947 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:24:32,947 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:24:32,947 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:24:32,947 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:24:32,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:24:32,948 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:24:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-07-07 13:24:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-07 13:24:32,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:32,981 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] [2020-07-07 13:24:32,981 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:32,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:32,987 INFO L82 PathProgramCache]: Analyzing trace with hash 606292035, now seen corresponding path program 1 times [2020-07-07 13:24:32,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:32,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239389395] [2020-07-07 13:24:32,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:33,220 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 13:24:33,221 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:33,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239389395] [2020-07-07 13:24:33,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:33,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:24:33,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919635608] [2020-07-07 13:24:33,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:24:33,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:24:33,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:24:33,271 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2020-07-07 13:24:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:33,409 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2020-07-07 13:24:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:24:33,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-07-07 13:24:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:33,422 INFO L225 Difference]: With dead ends: 73 [2020-07-07 13:24:33,423 INFO L226 Difference]: Without dead ends: 41 [2020-07-07 13:24:33,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:24:33,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-07 13:24:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-07-07 13:24:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-07 13:24:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-07-07 13:24:33,474 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 34 [2020-07-07 13:24:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:33,475 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-07-07 13:24:33,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:24:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-07-07 13:24:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-07 13:24:33,477 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:33,477 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] [2020-07-07 13:24:33,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:24:33,478 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:33,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1986388344, now seen corresponding path program 1 times [2020-07-07 13:24:33,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:33,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123488281] [2020-07-07 13:24:33,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:33,775 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 13:24:33,776 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:33,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123488281] [2020-07-07 13:24:33,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:33,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:24:33,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896551521] [2020-07-07 13:24:33,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:24:33,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:33,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:24:33,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:24:33,783 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 9 states. [2020-07-07 13:24:34,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:34,225 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2020-07-07 13:24:34,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 13:24:34,226 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2020-07-07 13:24:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:34,228 INFO L225 Difference]: With dead ends: 60 [2020-07-07 13:24:34,228 INFO L226 Difference]: Without dead ends: 46 [2020-07-07 13:24:34,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-07-07 13:24:34,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-07 13:24:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2020-07-07 13:24:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-07 13:24:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2020-07-07 13:24:34,243 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 36 [2020-07-07 13:24:34,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:34,244 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2020-07-07 13:24:34,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:24:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2020-07-07 13:24:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-07 13:24:34,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:24:34,246 INFO L422 BasicCegarLoop]: trace histogram [2, 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 13:24:34,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:24:34,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:24:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:24:34,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1471095088, now seen corresponding path program 1 times [2020-07-07 13:24:34,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:24:34,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949757583] [2020-07-07 13:24:34,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:24:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:34,768 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 13:24:34,768 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:24:34,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949757583] [2020-07-07 13:24:34,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:24:34,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-07-07 13:24:34,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600467248] [2020-07-07 13:24:34,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-07 13:24:34,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:24:34,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-07 13:24:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-07-07 13:24:34,771 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 16 states. [2020-07-07 13:24:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:24:35,512 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2020-07-07 13:24:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 13:24:35,516 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2020-07-07 13:24:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:24:35,517 INFO L225 Difference]: With dead ends: 43 [2020-07-07 13:24:35,517 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:24:35,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2020-07-07 13:24:35,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:24:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:24:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:24:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:24:35,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-07-07 13:24:35,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:24:35,522 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:24:35,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-07 13:24:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:24:35,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:24:35,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:24:35,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:24:36,022 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,022 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,022 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,022 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-07 13:24:36,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,023 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:24:36,023 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|))) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= 0 |main_~#ad1~0.offset|) (<= (+ (* 8 main_~i~0) 8) (* 8 .cse0)) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,024 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|))) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= 0 |main_~#ad1~0.offset|) (<= (+ (* 8 main_~i~0) 8) (* 8 .cse0)) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,024 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|))) (<= main_~i~0 .cse0) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,024 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 14 38) the Hoare annotation is: true [2020-07-07 13:24:36,024 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= |main_~#ad1~0.base| main_~ad2~0.base)) [2020-07-07 13:24:36,024 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (= |main_~#ad1~0.base| main_~ad2~0.base)) [2020-07-07 13:24:36,025 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,025 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,025 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,025 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,025 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-07-07 13:24:36,025 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-07-07 13:24:36,026 INFO L264 CegarLoopResult]: At program point L16-3(line 16) the Hoare annotation is: false [2020-07-07 13:24:36,026 INFO L264 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: false [2020-07-07 13:24:36,026 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: false [2020-07-07 13:24:36,026 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse1 (select |#memory_int| |main_~#ad1~0.base|))) (and (= .cse0 (select .cse1 (+ (* .cse0 8) |main_~#ad1~0.offset|))) (<= main_~i~0 .cse0) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select .cse1 (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (<= 1 |main_#t~ret5|) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,026 INFO L264 CegarLoopResult]: At program point L29-1(lines 29 31) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse1 (select |#memory_int| |main_~#ad1~0.base|))) (and (= .cse0 (select .cse1 (+ (* .cse0 8) |main_~#ad1~0.offset|))) (<= main_~i~0 .cse0) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select .cse1 (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (<= 1 |main_#t~ret5|) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,027 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: false [2020-07-07 13:24:36,027 INFO L271 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: true [2020-07-07 13:24:36,027 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (= (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset) main_~i~0) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (= |main_~#ad1~0.base| main_~ad2~0.base)) [2020-07-07 13:24:36,027 INFO L264 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 main_~i~0) (<= |main_#t~mem2| (+ .cse0 9)) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,027 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|))) (<= |main_#t~mem2| (+ .cse0 9)) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (<= (+ main_~i~0 1) .cse0) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,028 INFO L264 CegarLoopResult]: At program point L21(lines 21 32) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,028 INFO L271 CegarLoopResult]: At program point L21-2(lines 21 32) the Hoare annotation is: true [2020-07-07 13:24:36,028 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,028 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,028 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 14 38) the Hoare annotation is: true [2020-07-07 13:24:36,028 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) the Hoare annotation is: false [2020-07-07 13:24:36,029 INFO L264 CegarLoopResult]: At program point L30(lines 15 38) the Hoare annotation is: false [2020-07-07 13:24:36,029 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 38) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-07 13:24:36,029 INFO L264 CegarLoopResult]: At program point L26-1(lines 26 28) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse1 (select |#memory_int| |main_~#ad1~0.base|))) (and (= .cse0 (select .cse1 (+ (* .cse0 8) |main_~#ad1~0.offset|))) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (<= |main_#t~mem3| .cse0) (or (< main_~i~0 |main_#t~mem3|) (= (select .cse1 (+ (* |main_#t~mem3| 8) |main_~#ad1~0.offset|)) |main_#t~mem3|)) (= |main_~#ad1~0.base| main_~ad2~0.base) (<= (* 8 main_~i~0) (* 8 |main_#t~mem3|)))) [2020-07-07 13:24:36,029 INFO L264 CegarLoopResult]: At program point L26-2(line 26) the Hoare annotation is: (let ((.cse1 (select |#memory_int| |main_~#ad1~0.base|)) (.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select .cse1 (+ (* .cse0 8) |main_~#ad1~0.offset|))) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select .cse1 (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (<= |main_#t~mem3| .cse0) (= |main_~#ad1~0.base| main_~ad2~0.base) (<= (* 8 main_~i~0) (* 8 |main_#t~mem3|)))) [2020-07-07 13:24:36,029 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= 0 |main_~#ad1~0.offset|) [2020-07-07 13:24:36,030 INFO L264 CegarLoopResult]: At program point L26-4(line 26) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|))) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (<= (+ main_~i~0 1) |main_#t~mem3|) (<= |main_#t~mem3| .cse0) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,030 INFO L264 CegarLoopResult]: At program point L26-5(lines 26 28) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= .cse0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|))) (<= main_~i~0 .cse0) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,030 INFO L264 CegarLoopResult]: At program point L26-6(lines 26 28) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse1 (select |#memory_int| |main_~#ad1~0.base|))) (and (= .cse0 (select .cse1 (+ (* .cse0 8) |main_~#ad1~0.offset|))) (<= main_~i~0 .cse0) (= 0 |main_~#ad1~0.offset|) (= |main_~#ad1~0.offset| main_~ad2~0.offset) (= main_~i~0 (select .cse1 (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (= |main_~#ad1~0.base| main_~ad2~0.base))) [2020-07-07 13:24:36,030 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 9 12) the Hoare annotation is: true [2020-07-07 13:24:36,031 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (= check_~ad1.offset |check_#in~ad1.offset|) (= |check_#in~b| check_~b) (= check_~ad1.base |check_#in~ad1.base|)) [2020-07-07 13:24:36,031 INFO L264 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (and (= |check_#t~mem0| (select (select |#memory_int| |check_#in~ad1.base|) (+ |check_#in~ad1.offset| (* check_~b 8)))) (= check_~ad1.offset |check_#in~ad1.offset|) (= |check_#in~b| check_~b) (= check_~ad1.base |check_#in~ad1.base|)) [2020-07-07 13:24:36,031 INFO L264 CegarLoopResult]: At program point L9(lines 9 12) the Hoare annotation is: (and (= check_~ad1.offset |check_#in~ad1.offset|) (= check_~ad1.base |check_#in~ad1.base|)) [2020-07-07 13:24:36,031 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |check_#in~ad1.base|))) (and (= |check_#t~mem0| (select .cse0 (+ |check_#in~ad1.offset| (* check_~b 8)))) (= check_~ad1.offset |check_#in~ad1.offset|) (= |check_#in~b| check_~b) (= check_~ad1.base |check_#in~ad1.base|) (or (not (= |check_#in~b| (select .cse0 (+ |check_#in~ad1.offset| (* |check_#in~b| 8))))) (<= 1 |check_#res|)))) [2020-07-07 13:24:36,031 INFO L264 CegarLoopResult]: At program point checkFINAL(lines 9 12) the Hoare annotation is: (and (= check_~ad1.offset |check_#in~ad1.offset|) (= |check_#in~b| check_~b) (= check_~ad1.base |check_#in~ad1.base|) (or (not (= |check_#in~b| (select (select |#memory_int| |check_#in~ad1.base|) (+ |check_#in~ad1.offset| (* |check_#in~b| 8))))) (<= 1 |check_#res|))) [2020-07-07 13:24:36,032 INFO L264 CegarLoopResult]: At program point checkEXIT(lines 9 12) the Hoare annotation is: (and (= check_~ad1.offset |check_#in~ad1.offset|) (= |check_#in~b| check_~b) (= check_~ad1.base |check_#in~ad1.base|) (or (not (= |check_#in~b| (select (select |#memory_int| |check_#in~ad1.base|) (+ |check_#in~ad1.offset| (* |check_#in~b| 8))))) (<= 1 |check_#res|))) [2020-07-07 13:24:36,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,067 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:24:36 BoogieIcfgContainer [2020-07-07 13:24:36,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:24:36,073 INFO L168 Benchmark]: Toolchain (without parser) took 3951.95 ms. Allocated memory was 146.8 MB in the beginning and 246.9 MB in the end (delta: 100.1 MB). Free memory was 105.0 MB in the beginning and 220.2 MB in the end (delta: -115.2 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:36,074 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 13:24:36,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.30 ms. Allocated memory is still 146.8 MB. Free memory was 104.8 MB in the beginning and 94.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:36,076 INFO L168 Benchmark]: Boogie Preprocessor took 143.65 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 94.1 MB in the beginning and 182.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:36,077 INFO L168 Benchmark]: RCFGBuilder took 312.72 ms. Allocated memory is still 205.0 MB. Free memory was 182.6 MB in the beginning and 166.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:36,078 INFO L168 Benchmark]: TraceAbstraction took 3219.72 ms. Allocated memory was 205.0 MB in the beginning and 246.9 MB in the end (delta: 41.9 MB). Free memory was 165.8 MB in the beginning and 220.3 MB in the end (delta: -54.5 MB). Peak memory consumption was 107.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:24:36,083 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.30 ms. Allocated memory is still 146.8 MB. Free memory was 104.8 MB in the beginning and 94.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.65 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 94.1 MB in the beginning and 182.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.72 ms. Allocated memory is still 205.0 MB. Free memory was 182.6 MB in the beginning and 166.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3219.72 ms. Allocated memory was 205.0 MB in the beginning and 246.9 MB in the end (delta: 41.9 MB). Free memory was 165.8 MB in the beginning and 220.3 MB in the end (delta: -54.5 MB). Peak memory consumption was 107.7 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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: 36]: 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: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant [2020-07-07 13:24:36,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((unknown-#memory_int-unknown[pa][pa] == unknown-#memory_int-unknown[ad1][unknown-#memory_int-unknown[pa][pa] * 8 + ad1] && i <= unknown-#memory_int-unknown[pa][pa]) && 0 == ad1) && ad1 == ad2) && ad1 == ad2 - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 9]: Procedure Contract for check [2020-07-07 13:24:36,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 13:24:36,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure check: ((ad1 == ad1 && \old(b) == b) && ad1 == ad1) && (!(\old(b) == unknown-#memory_int-unknown[ad1][ad1 + \old(b) * 8]) || 1 <= \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 105 SDtfs, 90 SDslu, 250 SDs, 0 SdLazy, 371 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 66 PreInvPairs, 80 NumberOfFragments, 784 HoareAnnotationTreeSize, 66 FomulaSimplifications, 59 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 52 FomulaSimplificationsInter, 195 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...