/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 0.1.25-72570d3 [2020-08-22 16:45:26,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:45:26,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:45:26,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:45:26,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:45:26,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:45:26,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:45:26,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:45:26,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:45:26,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:45:26,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:45:26,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:45:26,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:45:26,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:45:26,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:45:26,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:45:26,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:45:26,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:45:26,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:45:26,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:45:26,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:45:26,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:45:26,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:45:26,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:45:26,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:45:26,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:45:26,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:45:26,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:45:26,868 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 [2020-08-22 16:45:26,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:45:26,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:45:26,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:45:26,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:45:26,903 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:45:26,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:45:26,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:45:26,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:45:26,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:45:26,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:45:26,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:45:26,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:45:26,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:45:26,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:45:26,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:45:26,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:45:26,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:45:26,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:45:26,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:45:26,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:45:26,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:45:26,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:45:26,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:45:26,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:45:26,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:45:26,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:45:26,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:45:26,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:45:26,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:45:26,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:45:27,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:45:27,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:45:27,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:45:27,231 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:45:27,232 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:45:27,233 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19.c [2020-08-22 16:45:27,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/370e66b09/371903c3299f45aca4faba8ddee0d046/FLAG65182da5a [2020-08-22 16:45:27,812 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:45:27,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19.c [2020-08-22 16:45:27,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/370e66b09/371903c3299f45aca4faba8ddee0d046/FLAG65182da5a [2020-08-22 16:45:28,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/370e66b09/371903c3299f45aca4faba8ddee0d046 [2020-08-22 16:45:28,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:45:28,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:45:28,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:45:28,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:45:28,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:45:28,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33024a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28, skipping insertion in model container [2020-08-22 16:45:28,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:45:28,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:45:28,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:45:28,502 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:45:28,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:45:28,533 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:45:28,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28 WrapperNode [2020-08-22 16:45:28,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:45:28,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:45:28,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:45:28,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:45:28,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (1/1) ... [2020-08-22 16:45:28,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:45:28,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:45:28,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:45:28,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:45:28,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (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 [2020-08-22 16:45:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:45:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:45:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-08-22 16:45:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:45:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:45:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:45:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-08-22 16:45:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:45:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:45:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:45:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:45:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:45:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 16:45:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 16:45:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:45:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:45:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:45:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:45:29,009 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:45:29,010 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 16:45:29,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:45:29 BoogieIcfgContainer [2020-08-22 16:45:29,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:45:29,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:45:29,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:45:29,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:45:29,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:45:28" (1/3) ... [2020-08-22 16:45:29,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf1cf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:45:29, skipping insertion in model container [2020-08-22 16:45:29,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:28" (2/3) ... [2020-08-22 16:45:29,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf1cf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:45:29, skipping insertion in model container [2020-08-22 16:45:29,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:45:29" (3/3) ... [2020-08-22 16:45:29,032 INFO L109 eAbstractionObserver]: Analyzing ICFG test19.c [2020-08-22 16:45:29,045 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:45:29,053 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:45:29,069 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:45:29,097 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:45:29,098 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:45:29,098 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:45:29,098 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:45:29,099 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:45:29,099 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:45:29,099 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:45:29,100 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:45:29,133 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-08-22 16:45:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-22 16:45:29,140 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:45:29,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:45:29,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:45:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:45:29,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1876068538, now seen corresponding path program 1 times [2020-08-22 16:45:29,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:45:29,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423224794] [2020-08-22 16:45:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:45:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:29,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:45:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:45:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:45:29,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423224794] [2020-08-22 16:45:29,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:45:29,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 16:45:29,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353473591] [2020-08-22 16:45:29,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:45:29,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:45:29,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:45:29,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:45:29,633 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 8 states. [2020-08-22 16:45:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:45:29,890 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-08-22 16:45:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 16:45:29,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-08-22 16:45:29,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:45:29,901 INFO L225 Difference]: With dead ends: 22 [2020-08-22 16:45:29,902 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:45:29,906 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 [2020-08-22 16:45:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:45:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:45:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:45:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:45:29,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-08-22 16:45:29,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:45:29,937 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:45:29,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:45:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:45:29,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:45:29,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:45:29,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:45:30,065 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:45:30,065 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 16:45:30,065 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:45:30,066 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:45:30,066 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 16:45:30,066 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:45:30,066 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:45:30,066 INFO L264 CegarLoopResult]: At program point L17(lines 11 24) the Hoare annotation is: false [2020-08-22 16:45:30,067 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-08-22 16:45:30,067 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-08-22 16:45:30,067 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.base|) (= |#memory_int| |old(#memory_int)|) (= (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.offset|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-22 16:45:30,068 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-08-22 16:45:30,068 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 24) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-22 16:45:30,068 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2020-08-22 16:45:30,068 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2020-08-22 16:45:30,068 INFO L268 CegarLoopResult]: For program point assignEXIT(lines 5 9) no Hoare annotation was computed. [2020-08-22 16:45:30,069 INFO L264 CegarLoopResult]: At program point assignENTRY(lines 5 9) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-22 16:45:30,069 INFO L268 CegarLoopResult]: For program point assignFINAL(lines 5 9) no Hoare annotation was computed. [2020-08-22 16:45:30,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:45:30 BoogieIcfgContainer [2020-08-22 16:45:30,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:45:30,085 INFO L168 Benchmark]: Toolchain (without parser) took 1809.05 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 97.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:30,087 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:45:30,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.62 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 92.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:30,089 INFO L168 Benchmark]: Boogie Preprocessor took 123.94 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 180.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:30,090 INFO L168 Benchmark]: RCFGBuilder took 361.78 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 164.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:30,091 INFO L168 Benchmark]: TraceAbstraction took 1060.19 ms. Allocated memory is still 202.9 MB. Free memory was 164.2 MB in the beginning and 97.0 MB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:30,095 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.62 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 92.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.94 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 180.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.78 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 164.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1060.19 ms. Allocated memory is still 202.9 MB. Free memory was 164.2 MB in the beginning and 97.0 MB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 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: 0.8s, 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, 0.1s 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...