/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:42,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:42,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:42,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:26:42,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:26:42,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:26:42,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:26:42,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:26:42,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:26:42,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:26:42,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:26:42,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:26:42,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:42,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:42,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:42,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:42,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:42,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:42,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:42,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:42,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:42,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:42,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:42,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:42,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:26:42,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:26:42,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:26:42,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:26:42,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:26:42,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:26:42,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:26:42,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:26:42,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:26:42,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:26:42,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:26:42,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:26:42,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:26:42,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:26:42,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:42,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:42,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:42,839 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 [2019-11-06 22:26:42,874 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:42,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:42,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:42,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:42,876 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:42,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:42,876 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:42,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:42,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:42,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:42,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:42,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:42,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:42,878 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:42,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:42,878 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:42,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:42,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:42,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:42,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:42,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:42,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:42,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:42,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:42,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:42,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:42,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:42,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:42,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:26:43,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:43,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:43,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:43,183 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:43,183 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:43,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-2.i [2019-11-06 22:26:43,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5fec3585/6c8857fa0f964330abdca4286371f508/FLAG0b29969b2 [2019-11-06 22:26:43,667 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:43,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-2.i [2019-11-06 22:26:43,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5fec3585/6c8857fa0f964330abdca4286371f508/FLAG0b29969b2 [2019-11-06 22:26:44,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5fec3585/6c8857fa0f964330abdca4286371f508 [2019-11-06 22:26:44,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:44,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:44,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:44,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:44,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:44,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a18eb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44, skipping insertion in model container [2019-11-06 22:26:44,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,070 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:44,092 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:44,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:44,279 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:44,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:44,319 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:44,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44 WrapperNode [2019-11-06 22:26:44,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:44,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:44,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:44,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:44,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:44,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:44,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:44,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:44,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (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 [2019-11-06 22:26:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:44,747 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:44,748 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-06 22:26:44,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:44 BoogieIcfgContainer [2019-11-06 22:26:44,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:44,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:44,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:44,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:44,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:44" (1/3) ... [2019-11-06 22:26:44,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a1c860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:44, skipping insertion in model container [2019-11-06 22:26:44,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (2/3) ... [2019-11-06 22:26:44,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a1c860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:44, skipping insertion in model container [2019-11-06 22:26:44,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:44" (3/3) ... [2019-11-06 22:26:44,757 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copyInitSum2_ground-2.i [2019-11-06 22:26:44,767 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:44,776 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:44,819 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:44,864 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:44,864 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:44,864 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:44,864 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:44,864 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:44,865 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:44,865 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:44,865 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-11-06 22:26:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:26:44,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:44,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:44,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:44,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:44,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1001985310, now seen corresponding path program 1 times [2019-11-06 22:26:44,907 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:44,907 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118608994] [2019-11-06 22:26:44,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:45,035 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118608994] [2019-11-06 22:26:45,036 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:45,037 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:45,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42202201] [2019-11-06 22:26:45,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:45,043 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:45,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:45,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:45,062 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-11-06 22:26:45,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:45,093 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2019-11-06 22:26:45,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:45,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-06 22:26:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:45,110 INFO L225 Difference]: With dead ends: 51 [2019-11-06 22:26:45,110 INFO L226 Difference]: Without dead ends: 24 [2019-11-06 22:26:45,117 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-06 22:26:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-06 22:26:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-06 22:26:45,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-11-06 22:26:45,175 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2019-11-06 22:26:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:45,176 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-11-06 22:26:45,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-11-06 22:26:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:26:45,177 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:45,178 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:45,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:45,179 INFO L82 PathProgramCache]: Analyzing trace with hash -400143846, now seen corresponding path program 1 times [2019-11-06 22:26:45,179 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:45,180 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275809774] [2019-11-06 22:26:45,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:45,298 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275809774] [2019-11-06 22:26:45,298 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:45,298 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:45,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613675746] [2019-11-06 22:26:45,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:45,301 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:45,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:45,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:45,302 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 3 states. [2019-11-06 22:26:45,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:45,363 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2019-11-06 22:26:45,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:45,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-06 22:26:45,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:45,365 INFO L225 Difference]: With dead ends: 46 [2019-11-06 22:26:45,365 INFO L226 Difference]: Without dead ends: 29 [2019-11-06 22:26:45,366 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:45,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-06 22:26:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-06 22:26:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-06 22:26:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-11-06 22:26:45,374 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2019-11-06 22:26:45,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:45,374 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-11-06 22:26:45,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-11-06 22:26:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-06 22:26:45,376 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:45,376 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:45,376 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:45,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:45,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1150570790, now seen corresponding path program 1 times [2019-11-06 22:26:45,378 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:45,378 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409953126] [2019-11-06 22:26:45,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-06 22:26:45,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409953126] [2019-11-06 22:26:45,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198363125] [2019-11-06 22:26:45,483 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 [2019-11-06 22:26:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:45,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-06 22:26:45,582 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-06 22:26:45,633 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [397672287] [2019-11-06 22:26:45,642 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-11-06 22:26:45,671 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:45,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:45,725 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:45,726 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 23 variables. [2019-11-06 22:26:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:45,729 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:45,759 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:45,759 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:45,761 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-11-06 22:26:45,761 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:45,762 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:45,762 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-06 22:26:45,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534036763] [2019-11-06 22:26:45,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:45,763 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:45,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:45,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:45,764 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 2 states. [2019-11-06 22:26:45,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:45,766 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-11-06 22:26:45,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:45,766 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-11-06 22:26:45,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:45,767 INFO L225 Difference]: With dead ends: 27 [2019-11-06 22:26:45,767 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:45,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:45,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:45,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-06 22:26:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:45,769 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:45,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:45,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:45,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:45,973 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:45,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:46,027 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,027 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:46,028 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,028 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,028 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:46,029 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:46,029 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,029 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 22) no Hoare annotation was computed. [2019-11-06 22:26:46,029 INFO L439 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: false [2019-11-06 22:26:46,029 INFO L443 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-11-06 22:26:46,030 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-11-06 22:26:46,030 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: false [2019-11-06 22:26:46,030 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-11-06 22:26:46,032 INFO L439 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: false [2019-11-06 22:26:46,032 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-06 22:26:46,032 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 22) no Hoare annotation was computed. [2019-11-06 22:26:46,032 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 22) the Hoare annotation is: true [2019-11-06 22:26:46,032 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-11-06 22:26:46,033 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: false [2019-11-06 22:26:46,033 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-11-06 22:26:46,033 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-11-06 22:26:46,033 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: false [2019-11-06 22:26:46,033 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 16) no Hoare annotation was computed. [2019-11-06 22:26:46,033 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,034 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,034 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,034 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:46,034 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,035 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:46 BoogieIcfgContainer [2019-11-06 22:26:46,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:46,062 INFO L168 Benchmark]: Toolchain (without parser) took 2010.87 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 102.7 MB in the beginning and 107.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,063 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.30 ms. Allocated memory is still 145.2 MB. Free memory was 102.5 MB in the beginning and 92.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,067 INFO L168 Benchmark]: Boogie Preprocessor took 134.24 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 92.5 MB in the beginning and 181.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,069 INFO L168 Benchmark]: RCFGBuilder took 293.75 ms. Allocated memory is still 203.9 MB. Free memory was 181.7 MB in the beginning and 167.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,072 INFO L168 Benchmark]: TraceAbstraction took 1304.18 ms. Allocated memory is still 203.9 MB. Free memory was 166.5 MB in the beginning and 107.0 MB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,077 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.30 ms. Allocated memory is still 145.2 MB. Free memory was 102.5 MB in the beginning and 92.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.24 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 92.5 MB in the beginning and 181.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 293.75 ms. Allocated memory is still 203.9 MB. Free memory was 181.7 MB in the beginning and 167.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1304.18 ms. Allocated memory is still 203.9 MB. Free memory was 166.5 MB in the beginning and 107.0 MB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 2 SDslu, 16 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2119 SizeOfPredicates, 1 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 88, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9404761904761905, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8095238095238095, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...