java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 11:25:00,748 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 11:25:00,751 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 11:25:00,767 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 11:25:00,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 11:25:00,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 11:25:00,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 11:25:00,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 11:25:00,775 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 11:25:00,775 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 11:25:00,778 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 11:25:00,778 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 11:25:00,779 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 11:25:00,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 11:25:00,790 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 11:25:00,791 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 11:25:00,792 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 11:25:00,794 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 11:25:00,796 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 11:25:00,797 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 11:25:00,798 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 11:25:00,800 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 11:25:00,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 11:25:00,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 11:25:00,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 11:25:00,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 11:25:00,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 11:25:00,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 11:25:00,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 11:25:00,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 11:25:00,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 11:25:00,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 11:25:00,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 11:25:00,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 11:25:00,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 11:25:00,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 11:25:00,810 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 11:25:00,831 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 11:25:00,831 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 11:25:00,834 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 11:25:00,835 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 11:25:00,835 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 11:25:00,835 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 11:25:00,835 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 11:25:00,836 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 11:25:00,836 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 11:25:00,836 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 11:25:00,836 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 11:25:00,836 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 11:25:00,836 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 11:25:00,838 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 11:25:00,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 11:25:00,838 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 11:25:00,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 11:25:00,839 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 11:25:00,839 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 11:25:00,839 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 11:25:00,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:25:00,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 11:25:00,840 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 11:25:00,841 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 11:25:00,841 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 11:25:00,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump [2018-10-10 11:25:00,909 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 11:25:00,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 11:25:00,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 11:25:00,927 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 11:25:00,928 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 11:25:00,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-10-10 11:25:01,244 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8299092af/5953f6930ea046d9a72df669d98c882d/FLAGe20128621 [2018-10-10 11:25:01,432 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 11:25:01,433 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-10-10 11:25:01,442 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8299092af/5953f6930ea046d9a72df669d98c882d/FLAGe20128621 [2018-10-10 11:25:01,457 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8299092af/5953f6930ea046d9a72df669d98c882d [2018-10-10 11:25:01,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 11:25:01,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 11:25:01,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 11:25:01,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 11:25:01,474 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 11:25:01,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9011366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01, skipping insertion in model container [2018-10-10 11:25:01,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 11:25:01,512 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 11:25:01,709 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:25:01,720 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 11:25:01,745 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:25:01,769 INFO L193 MainTranslator]: Completed translation [2018-10-10 11:25:01,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01 WrapperNode [2018-10-10 11:25:01,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 11:25:01,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 11:25:01,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 11:25:01,772 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 11:25:01,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 11:25:01,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 11:25:01,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 11:25:01,817 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 11:25:01,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (1/1) ... [2018-10-10 11:25:01,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 11:25:01,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 11:25:01,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 11:25:01,845 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 11:25:01,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (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 [2018-10-10 11:25:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 11:25:01,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 11:25:02,506 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 11:25:02,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:25:02 BoogieIcfgContainer [2018-10-10 11:25:02,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 11:25:02,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 11:25:02,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 11:25:02,510 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 11:25:02,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:25:01" (1/3) ... [2018-10-10 11:25:02,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9fd5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:25:02, skipping insertion in model container [2018-10-10 11:25:02,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:25:01" (2/3) ... [2018-10-10 11:25:02,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9fd5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:25:02, skipping insertion in model container [2018-10-10 11:25:02,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:25:02" (3/3) ... [2018-10-10 11:25:02,514 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength5_true-valid-memsafety.c [2018-10-10 11:25:02,525 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 11:25:02,532 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-10 11:25:02,547 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-10 11:25:02,575 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 11:25:02,576 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 11:25:02,576 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 11:25:02,576 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 11:25:02,576 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 11:25:02,577 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 11:25:02,577 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 11:25:02,577 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 11:25:02,577 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 11:25:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-10-10 11:25:02,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-10 11:25:02,601 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:02,602 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:02,604 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:25:02,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:02,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1805952520, now seen corresponding path program 1 times [2018-10-10 11:25:02,613 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:02,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:02,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:02,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:02,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:02,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:02,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:25:02,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:25:02,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:25:02,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:25:02,854 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2018-10-10 11:25:03,029 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-10 11:25:03,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:03,309 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2018-10-10 11:25:03,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:25:03,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-10-10 11:25:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:03,321 INFO L225 Difference]: With dead ends: 89 [2018-10-10 11:25:03,322 INFO L226 Difference]: Without dead ends: 81 [2018-10-10 11:25:03,323 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:25:03,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-10-10 11:25:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 39. [2018-10-10 11:25:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-10 11:25:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-10-10 11:25:03,361 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 7 [2018-10-10 11:25:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:03,361 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-10-10 11:25:03,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:25:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-10-10 11:25:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-10 11:25:03,362 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:03,363 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:03,363 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:25:03,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:03,364 INFO L82 PathProgramCache]: Analyzing trace with hash 353536214, now seen corresponding path program 1 times [2018-10-10 11:25:03,364 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:03,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:03,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:03,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:03,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:03,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:25:03,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:25:03,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:25:03,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:25:03,468 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 4 states. [2018-10-10 11:25:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:03,628 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-10-10 11:25:03,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:25:03,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-10-10 11:25:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:03,630 INFO L225 Difference]: With dead ends: 40 [2018-10-10 11:25:03,630 INFO L226 Difference]: Without dead ends: 40 [2018-10-10 11:25:03,631 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:25:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-10 11:25:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-10-10 11:25:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-10 11:25:03,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-10-10 11:25:03,636 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 9 [2018-10-10 11:25:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:03,637 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-10-10 11:25:03,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:25:03,637 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-10-10 11:25:03,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-10 11:25:03,638 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:03,638 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:03,638 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:25:03,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:03,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1925279186, now seen corresponding path program 1 times [2018-10-10 11:25:03,639 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:03,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:03,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:03,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:03,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:25:03,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:25:03,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:25:03,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:25:03,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:25:03,925 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 4 states. [2018-10-10 11:25:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:04,153 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2018-10-10 11:25:04,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:25:04,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-10 11:25:04,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:04,159 INFO L225 Difference]: With dead ends: 71 [2018-10-10 11:25:04,159 INFO L226 Difference]: Without dead ends: 71 [2018-10-10 11:25:04,159 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:25:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-10 11:25:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 42. [2018-10-10 11:25:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-10 11:25:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-10-10 11:25:04,170 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 10 [2018-10-10 11:25:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:04,170 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-10-10 11:25:04,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:25:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-10-10 11:25:04,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-10 11:25:04,171 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:04,172 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:04,172 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:25:04,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:04,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1869190066, now seen corresponding path program 1 times [2018-10-10 11:25:04,173 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:04,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:04,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:04,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:04,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:04,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:25:04,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 11:25:04,312 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 11:25:04,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:04,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:25:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 11:25:04,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-10 11:25:04,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-10-10 11:25:04,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 11:25:04,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 11:25:04,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-10 11:25:04,415 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 6 states. [2018-10-10 11:25:04,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:25:04,994 INFO L93 Difference]: Finished difference Result 145 states and 153 transitions. [2018-10-10 11:25:04,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 11:25:04,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-10 11:25:04,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:25:04,996 INFO L225 Difference]: With dead ends: 145 [2018-10-10 11:25:04,999 INFO L226 Difference]: Without dead ends: 145 [2018-10-10 11:25:04,999 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-10 11:25:05,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-10-10 11:25:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 54. [2018-10-10 11:25:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-10-10 11:25:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2018-10-10 11:25:05,014 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 16 [2018-10-10 11:25:05,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:25:05,017 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2018-10-10 11:25:05,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 11:25:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2018-10-10 11:25:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-10 11:25:05,019 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:25:05,019 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:25:05,020 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 11:25:05,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:25:05,020 INFO L82 PathProgramCache]: Analyzing trace with hash 2110317252, now seen corresponding path program 1 times [2018-10-10 11:25:05,020 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 11:25:05,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 11:25:05,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:05,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:05,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 11:25:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 11:25:05,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 11:25:05,133 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 11:25:05,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:25:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:25:05,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:25:05,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-10 11:25:05,207 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:25:05,220 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:25:05,220 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 11:25:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-10 11:25:05,245 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 11:25:05,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-10 11:25:05,274 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#mask~0.offset_1| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1| 1)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 32), (= |v_ULTIMATE.start_main_~#mask~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= v_ULTIMATE.start_main_~i~1_2 0), (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1|) 0), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (not (= |v_ULTIMATE.start_main_~#b~0.base_1| 0)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_3|), (= 0 |v_ULTIMATE.start_main_~#b~0.offset_1|), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#b~0.base_1| 128) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_5|), (= |v_ULTIMATE.start_main_~#mask~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.extractUpdateRhs(SimultaneousUpdate.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:104) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.addStatementsAndVariables(PathProgramDumper.java:634) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructTransitionStatements(PathProgramDumper.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.processTransition(PathProgramDumper.java:521) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructProcedureStatements(PathProgramDumper.java:489) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructNewImplementation(PathProgramDumper.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.(PathProgramDumper.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.doDump(PathProgramDumpController.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.reportPathProgram(PathProgramDumpController.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-10 11:25:05,282 INFO L168 Benchmark]: Toolchain (without parser) took 3814.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -640.0 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:05,284 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:25:05,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:05,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:25:05,287 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:25:05,288 INFO L168 Benchmark]: RCFGBuilder took 662.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:05,290 INFO L168 Benchmark]: TraceAbstraction took 2773.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. [2018-10-10 11:25:05,299 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 300.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 662.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2773.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#mask~0.offset_1| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1| 1)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 32), (= |v_ULTIMATE.start_main_~#mask~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= v_ULTIMATE.start_main_~i~1_2 0), (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1|) 0), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (not (= |v_ULTIMATE.start_main_~#b~0.base_1| 0)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_3|), (= 0 |v_ULTIMATE.start_main_~#b~0.offset_1|), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#b~0.base_1| 128) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_5|), (= |v_ULTIMATE.start_main_~#mask~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form, |v_ULTIMATE.start_main_~#mask~0.offset_1| has two outvars in equality [(not (= 0 |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (= |v_#length_1| (store |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| |v_ULTIMATE.start_#Ultimate.alloc_~size_1|)), (= |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| (store |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1| 1)), (= |v_ULTIMATE.start_#Ultimate.alloc_~size_1| 32), (= |v_ULTIMATE.start_main_~#mask~0.offset_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1|), (= v_ULTIMATE.start_main_~i~1_2 0), (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#b~0.base_1|) 0), (= |v_ULTIMATE.start_#Ultimate.alloc_#res.offset_1| 0), (= 0 (select |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)), (not (= |v_ULTIMATE.start_main_~#b~0.base_1| 0)), (= (store |v_ULTIMATE.start_#Ultimate.alloc_old_#valid_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1| 1) |v_#valid_3|), (= 0 |v_ULTIMATE.start_main_~#b~0.offset_1|), (= (store |v_#length_3| |v_ULTIMATE.start_main_~#b~0.base_1| 128) |v_ULTIMATE.start_#Ultimate.alloc_old_#length_1|), (= |v_ULTIMATE.start_main_old_#valid_1| |v_#valid_5|), (= |v_ULTIMATE.start_main_~#mask~0.base_1| |v_ULTIMATE.start_#Ultimate.alloc_#res.base_1|)]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.computeSubstitutionMapping(SimultaneousUpdate.java:174) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...