/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:02:35,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:02:35,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:02:35,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:02:35,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:02:35,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:02:35,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:02:35,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:02:35,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:02:35,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:02:35,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:02:35,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:02:35,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:02:35,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:02:35,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:02:35,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:02:35,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:02:35,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:02:35,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:02:35,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:02:35,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:02:35,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:02:35,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:02:35,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:02:35,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:02:35,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:02:35,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:02:35,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:02:35,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 12:02:35,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:02:35,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:02:35,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:02:35,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:02:35,292 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:02:35,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:02:35,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:02:35,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:02:35,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:02:35,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:02:35,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:02:35,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:02:35,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:02:35,294 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:02:35,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:02:35,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:02:35,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:02:35,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:02:35,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:02:35,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:02:35,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:02:35,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:02:35,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:02:35,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:02:35,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:02:35,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:02:35,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:02:35,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:02:35,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:02:35,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:02:35,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:02:35,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:02:35,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:02:35,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:02:35,632 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:02:35,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19.c [2020-07-17 12:02:35,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abb48d8a/8d42f257898141e8805d3ab8d9698f94/FLAG7905c54e8 [2020-07-17 12:02:36,131 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:02:36,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19.c [2020-07-17 12:02:36,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abb48d8a/8d42f257898141e8805d3ab8d9698f94/FLAG7905c54e8 [2020-07-17 12:02:36,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abb48d8a/8d42f257898141e8805d3ab8d9698f94 [2020-07-17 12:02:36,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:02:36,562 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:02:36,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:02:36,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:02:36,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:02:36,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3297cb6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36, skipping insertion in model container [2020-07-17 12:02:36,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:02:36,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:02:36,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:02:36,776 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:02:36,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:02:36,812 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:02:36,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36 WrapperNode [2020-07-17 12:02:36,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:02:36,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:02:36,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:02:36,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:02:36,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (1/1) ... [2020-07-17 12:02:36,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:02:36,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:02:36,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:02:36,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:02:36,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (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 [2020-07-17 12:02:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:02:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:02:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-07-17 12:02:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 12:02:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:02:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 12:02:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 12:02:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-17 12:02:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 12:02:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:02:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:02:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 12:02:37,261 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:02:37,261 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 12:02:37,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:02:37 BoogieIcfgContainer [2020-07-17 12:02:37,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:02:37,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:02:37,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:02:37,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:02:37,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:02:36" (1/3) ... [2020-07-17 12:02:37,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7ce83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:02:37, skipping insertion in model container [2020-07-17 12:02:37,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:02:36" (2/3) ... [2020-07-17 12:02:37,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7ce83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:02:37, skipping insertion in model container [2020-07-17 12:02:37,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:02:37" (3/3) ... [2020-07-17 12:02:37,274 INFO L109 eAbstractionObserver]: Analyzing ICFG test19.c [2020-07-17 12:02:37,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:02:37,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:02:37,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:02:37,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:02:37,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:02:37,345 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:02:37,346 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:02:37,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:02:37,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:02:37,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:02:37,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:02:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-17 12:02:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 12:02:37,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:02:37,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:02:37,397 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:02:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:02:37,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1876068538, now seen corresponding path program 1 times [2020-07-17 12:02:37,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:02:37,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502681025] [2020-07-17 12:02:37,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:02:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:02:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:02:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:02:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:02:37,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502681025] [2020-07-17 12:02:37,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:02:37,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 12:02:37,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098195674] [2020-07-17 12:02:37,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:02:37,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:02:37,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:02:37,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:02:37,884 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 8 states. [2020-07-17 12:02:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:02:38,094 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-07-17 12:02:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:02:38,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-07-17 12:02:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:02:38,104 INFO L225 Difference]: With dead ends: 22 [2020-07-17 12:02:38,104 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:02:38,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-07-17 12:02:38,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:02:38,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:02:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:02:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:02:38,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-07-17 12:02:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:02:38,137 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:02:38,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:02:38,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:02:38,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:02:38,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:02:38,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:02:38,270 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:02:38,271 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 12:02:38,271 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:02:38,271 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:02:38,271 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 12:02:38,272 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:02:38,272 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:02:38,273 INFO L264 CegarLoopResult]: At program point L17(lines 11 24) the Hoare annotation is: false [2020-07-17 12:02:38,273 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-07-17 12:02:38,273 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-07-17 12:02:38,274 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= |main_~#b~0.base| (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |main_~#a~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (= |main_~#b~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-17 12:02:38,274 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-07-17 12:02:38,274 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 24) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-17 12:02:38,275 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2020-07-17 12:02:38,275 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2020-07-17 12:02:38,275 INFO L268 CegarLoopResult]: For program point assignEXIT(lines 5 9) no Hoare annotation was computed. [2020-07-17 12:02:38,276 INFO L264 CegarLoopResult]: At program point assignENTRY(lines 5 9) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-17 12:02:38,276 INFO L268 CegarLoopResult]: For program point assignFINAL(lines 5 9) no Hoare annotation was computed. [2020-07-17 12:02:38,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:02:38 BoogieIcfgContainer [2020-07-17 12:02:38,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:02:38,295 INFO L168 Benchmark]: Toolchain (without parser) took 1733.02 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 100.2 MB in the beginning and 94.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 62.1 MB. Max. memory is 7.1 GB. [2020-07-17 12:02:38,297 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 12:02:38,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.25 ms. Allocated memory is still 143.7 MB. Free memory was 100.0 MB in the beginning and 90.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:02:38,302 INFO L168 Benchmark]: Boogie Preprocessor took 128.88 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 90.0 MB in the beginning and 178.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-17 12:02:38,303 INFO L168 Benchmark]: RCFGBuilder took 322.82 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 161.7 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-17 12:02:38,304 INFO L168 Benchmark]: TraceAbstraction took 1024.86 ms. Allocated memory is still 200.3 MB. Free memory was 161.7 MB in the beginning and 94.8 MB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:02:38,316 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.25 ms. Allocated memory is still 143.7 MB. Free memory was 100.0 MB in the beginning and 90.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.88 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 90.0 MB in the beginning and 178.2 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 322.82 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 161.7 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1024.86 ms. Allocated memory is still 200.3 MB. Free memory was 161.7 MB in the beginning and 94.8 MB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 26 SDs, 0 SdLazy, 53 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 78 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 1800 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...