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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test24-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:08:39,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:39,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:39,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:39,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:39,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:39,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:39,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:39,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:39,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:39,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:39,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:39,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:39,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:39,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:39,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:39,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:39,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:39,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:39,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:39,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:39,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:39,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:39,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:39,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:08:39,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:39,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:39,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:39,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:08:39,269 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:39,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:39,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:39,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:39,272 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:39,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:39,272 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:39,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:39,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:39,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:39,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:39,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:39,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:39,273 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:39,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:39,274 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:39,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:39,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:39,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:39,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:39,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:39,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:39,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:39,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:39,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:39,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:39,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:39,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:39,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:39,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:39,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:39,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:39,632 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:39,633 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:39,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test24-1.c [2019-10-14 23:08:39,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6385649/88dc74285ea24829b902e7f9bee8434a/FLAGac5eda951 [2019-10-14 23:08:40,162 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:40,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test24-1.c [2019-10-14 23:08:40,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6385649/88dc74285ea24829b902e7f9bee8434a/FLAGac5eda951 [2019-10-14 23:08:40,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6385649/88dc74285ea24829b902e7f9bee8434a [2019-10-14 23:08:40,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:40,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:40,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:40,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:40,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:40,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac258e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40, skipping insertion in model container [2019-10-14 23:08:40,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,589 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:40,606 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:40,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:40,799 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:40,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:40,829 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:40,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40 WrapperNode [2019-10-14 23:08:40,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:40,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:40,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:40,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:40,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:40,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:40,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:40,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:40,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (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 [2019-10-14 23:08:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-14 23:08:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:08:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:08:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:08:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:08:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:08:41,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:08:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:41,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:41,313 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:41,313 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:08:41,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:41 BoogieIcfgContainer [2019-10-14 23:08:41,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:41,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:41,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:41,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:41,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:40" (1/3) ... [2019-10-14 23:08:41,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4d2f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:41, skipping insertion in model container [2019-10-14 23:08:41,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (2/3) ... [2019-10-14 23:08:41,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4d2f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:41, skipping insertion in model container [2019-10-14 23:08:41,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:41" (3/3) ... [2019-10-14 23:08:41,325 INFO L109 eAbstractionObserver]: Analyzing ICFG test24-1.c [2019-10-14 23:08:41,337 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:41,357 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:08:41,381 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:08:41,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:41,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:41,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:41,404 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:41,404 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:41,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:41,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:41,405 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-14 23:08:41,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:08:41,426 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:41,427 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:41,429 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:41,434 INFO L82 PathProgramCache]: Analyzing trace with hash 149844724, now seen corresponding path program 1 times [2019-10-14 23:08:41,442 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:41,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306088618] [2019-10-14 23:08:41,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:41,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:41,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:41,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306088618] [2019-10-14 23:08:41,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:41,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:08:41,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671588825] [2019-10-14 23:08:41,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:08:41,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:41,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:08:41,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:08:41,700 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-10-14 23:08:41,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:41,846 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2019-10-14 23:08:41,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:08:41,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-14 23:08:41,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:41,866 INFO L225 Difference]: With dead ends: 35 [2019-10-14 23:08:41,866 INFO L226 Difference]: Without dead ends: 17 [2019-10-14 23:08:41,873 INFO L600 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 [2019-10-14 23:08:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-14 23:08:41,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-14 23:08:41,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-14 23:08:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-10-14 23:08:41,929 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2019-10-14 23:08:41,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:41,930 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-10-14 23:08:41,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:08:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-10-14 23:08:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:08:41,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:41,933 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:41,934 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:41,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1249419983, now seen corresponding path program 1 times [2019-10-14 23:08:41,936 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:41,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702456809] [2019-10-14 23:08:41,937 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:41,938 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:41,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:42,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702456809] [2019-10-14 23:08:42,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:42,170 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:08:42,170 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943271027] [2019-10-14 23:08:42,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:08:42,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:42,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:08:42,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:08:42,174 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2019-10-14 23:08:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:42,277 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-10-14 23:08:42,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:08:42,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-14 23:08:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:42,279 INFO L225 Difference]: With dead ends: 27 [2019-10-14 23:08:42,280 INFO L226 Difference]: Without dead ends: 19 [2019-10-14 23:08:42,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:08:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-14 23:08:42,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-14 23:08:42,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-14 23:08:42,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-14 23:08:42,289 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2019-10-14 23:08:42,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:42,290 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-14 23:08:42,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:08:42,290 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-14 23:08:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-14 23:08:42,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:42,291 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:42,292 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1840889772, now seen corresponding path program 1 times [2019-10-14 23:08:42,293 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:42,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935450694] [2019-10-14 23:08:42,293 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:42,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:42,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:42,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935450694] [2019-10-14 23:08:42,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869451572] [2019-10-14 23:08:42,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:08:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:42,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-14 23:08:42,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:08:42,886 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2019-10-14 23:08:42,888 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:08:42,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:08:42,901 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:08:42,902 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2019-10-14 23:08:43,139 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-14 23:08:43,141 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:08:43,142 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 20 [2019-10-14 23:08:43,144 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:08:43,155 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:08:43,156 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-14 23:08:43,159 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:56, output treesize:28 [2019-10-14 23:08:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:43,201 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:08:43,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2019-10-14 23:08:43,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968659013] [2019-10-14 23:08:43,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-14 23:08:43,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:43,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-14 23:08:43,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:08:43,203 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 14 states. [2019-10-14 23:08:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:44,185 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-10-14 23:08:44,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:08:44,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2019-10-14 23:08:44,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:44,186 INFO L225 Difference]: With dead ends: 27 [2019-10-14 23:08:44,186 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:08:44,187 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2019-10-14 23:08:44,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:08:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:08:44,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:08:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:08:44,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-14 23:08:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:44,189 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:08:44,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-14 23:08:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:08:44,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:08:44,395 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:08:44,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:08:44,510 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:44,511 INFO L439 ceAbstractionStarter]: 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)|)) [2019-10-14 23:08:44,511 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:44,511 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:44,511 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:08:44,512 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:08:44,512 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:44,512 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-10-14 23:08:44,512 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2019-10-14 23:08:44,512 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 14 38) no Hoare annotation was computed. [2019-10-14 23:08:44,512 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 32) no Hoare annotation was computed. [2019-10-14 23:08:44,512 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 32) no Hoare annotation was computed. [2019-10-14 23:08:44,513 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2019-10-14 23:08:44,513 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 14 38) no Hoare annotation was computed. [2019-10-14 23:08:44,513 INFO L439 ceAbstractionStarter]: At program point L30(lines 15 38) the Hoare annotation is: false [2019-10-14 23:08:44,513 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 14 38) the Hoare annotation is: (= |#valid| |old(#valid)|) [2019-10-14 23:08:44,513 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2019-10-14 23:08:44,513 INFO L439 ceAbstractionStarter]: At program point L26-3(lines 26 28) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (and (= (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|)) .cse0) (= |main_~#ad1~0.offset| 0) (<= (* 8 main_~i~0) (* 8 .cse0)))) [2019-10-14 23:08:44,514 INFO L439 ceAbstractionStarter]: At program point L26-4(lines 26 28) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (.cse0 (select |#memory_int| |main_~#ad1~0.base|))) (and (= (select .cse0 (+ (* .cse1 8) |main_~#ad1~0.offset|)) .cse1) (= |main_~#ad1~0.offset| 0) (<= (* 8 main_~i~0) (* 8 .cse1)) (= (select .cse0 (+ (* main_~i~0 8) |main_~#ad1~0.offset|)) main_~i~0))) [2019-10-14 23:08:44,514 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 9 12) the Hoare annotation is: true [2019-10-14 23:08:44,514 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 9 12) no Hoare annotation was computed. [2019-10-14 23:08:44,514 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 9 12) no Hoare annotation was computed. [2019-10-14 23:08:44,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:08:44 BoogieIcfgContainer [2019-10-14 23:08:44,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:08:44,540 INFO L168 Benchmark]: Toolchain (without parser) took 3967.06 ms. Allocated memory was 145.8 MB in the beginning and 235.4 MB in the end (delta: 89.7 MB). Free memory was 103.3 MB in the beginning and 117.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:44,541 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:08:44,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.86 ms. Allocated memory is still 145.8 MB. Free memory was 103.1 MB in the beginning and 93.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:44,543 INFO L168 Benchmark]: Boogie Preprocessor took 119.73 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 93.0 MB in the beginning and 180.4 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:44,544 INFO L168 Benchmark]: RCFGBuilder took 364.31 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 166.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:44,545 INFO L168 Benchmark]: TraceAbstraction took 3221.50 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 117.9 MB in the end (delta: 48.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:44,550 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.86 ms. Allocated memory is still 145.8 MB. Free memory was 103.1 MB in the beginning and 93.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.73 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 93.0 MB in the beginning and 180.4 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 364.31 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 166.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3221.50 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 117.9 MB in the end (delta: 48.3 MB). Peak memory consumption was 80.8 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 * 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: 26]: Loop Invariant [2019-10-14 23:08:44,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:08:44,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (unknown-#memory_int-unknown[ad1][unknown-#memory_int-unknown[pa][pa] * 8 + ad1] == unknown-#memory_int-unknown[pa][pa] && ad1 == 0) && 8 * i <= 8 * unknown-#memory_int-unknown[pa][pa] - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 41 SDtfs, 22 SDslu, 56 SDs, 0 SdLazy, 123 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 14 NumberOfFragments, 96 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 172 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 4 QuantifiedInterpolants, 7220 SizeOfPredicates, 8 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...