java -ea -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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf -i ../../../trunk/examples/svcomp/ldv-regression/volatile_alias_true-termination.c_true-unreach-call_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 18:13:59,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 18:13:59,461 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 18:13:59,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 18:13:59,476 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 18:13:59,477 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 18:13:59,479 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 18:13:59,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 18:13:59,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 18:13:59,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 18:13:59,486 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 18:13:59,486 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 18:13:59,487 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 18:13:59,489 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 18:13:59,490 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 18:13:59,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 18:13:59,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 18:13:59,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 18:13:59,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 18:13:59,497 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 18:13:59,498 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 18:13:59,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 18:13:59,503 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 18:13:59,522 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf [2018-11-14 18:13:59,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 18:13:59,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 18:13:59,542 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 18:13:59,542 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 18:13:59,543 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 18:13:59,543 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 18:13:59,544 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 18:13:59,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 18:13:59,544 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 18:13:59,544 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 18:13:59,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 18:13:59,545 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 18:13:59,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 18:13:59,545 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 18:13:59,545 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-14 18:13:59,545 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-14 18:13:59,546 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 18:13:59,546 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 18:13:59,546 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 18:13:59,546 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 18:13:59,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 18:13:59,547 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 18:13:59,547 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 18:13:59,547 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 18:13:59,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 18:13:59,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 18:13:59,548 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 18:13:59,548 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 18:13:59,548 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-14 18:13:59,548 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 18:13:59,549 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-14 18:13:59,549 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-14 18:13:59,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 18:13:59,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 18:13:59,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 18:13:59,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 18:13:59,626 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 18:13:59,626 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 18:13:59,627 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/volatile_alias_true-termination.c_true-unreach-call_1.i [2018-11-14 18:13:59,683 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13a43ee8/108e59d0b9524d149da3b324bbfe6848/FLAG0765d8293 [2018-11-14 18:14:00,133 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 18:14:00,133 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/volatile_alias_true-termination.c_true-unreach-call_1.i [2018-11-14 18:14:00,139 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13a43ee8/108e59d0b9524d149da3b324bbfe6848/FLAG0765d8293 [2018-11-14 18:14:00,154 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13a43ee8/108e59d0b9524d149da3b324bbfe6848 [2018-11-14 18:14:00,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 18:14:00,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 18:14:00,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 18:14:00,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 18:14:00,173 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 18:14:00,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15afd13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00, skipping insertion in model container [2018-11-14 18:14:00,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 18:14:00,209 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 18:14:00,443 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:14:00,466 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 18:14:00,485 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:14:00,510 INFO L195 MainTranslator]: Completed translation [2018-11-14 18:14:00,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00 WrapperNode [2018-11-14 18:14:00,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 18:14:00,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 18:14:00,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 18:14:00,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 18:14:00,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (1/1) ... [2018-11-14 18:14:00,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 18:14:00,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 18:14:00,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 18:14:00,563 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 18:14:00,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (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 [2018-11-14 18:14:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 18:14:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 18:14:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 18:14:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 18:14:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 18:14:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 18:14:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-14 18:14:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-14 18:14:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-14 18:14:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 18:14:00,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 18:14:00,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 18:14:01,138 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 18:14:01,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:14:01 BoogieIcfgContainer [2018-11-14 18:14:01,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 18:14:01,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 18:14:01,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 18:14:01,143 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 18:14:01,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 06:14:00" (1/3) ... [2018-11-14 18:14:01,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bab1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:14:01, skipping insertion in model container [2018-11-14 18:14:01,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:14:00" (2/3) ... [2018-11-14 18:14:01,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bab1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:14:01, skipping insertion in model container [2018-11-14 18:14:01,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:14:01" (3/3) ... [2018-11-14 18:14:01,148 INFO L112 eAbstractionObserver]: Analyzing ICFG volatile_alias_true-termination.c_true-unreach-call_1.i [2018-11-14 18:14:01,158 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 18:14:01,167 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 18:14:01,183 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 18:14:01,213 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 18:14:01,213 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 18:14:01,214 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 18:14:01,214 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 18:14:01,214 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 18:14:01,214 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 18:14:01,214 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 18:14:01,214 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 18:14:01,214 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 18:14:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-14 18:14:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-14 18:14:01,237 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:14:01,238 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:14:01,240 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:14:01,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:14:01,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2096341077, now seen corresponding path program 1 times [2018-11-14 18:14:01,252 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:14:01,252 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 18:14:01,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:14:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:14:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:14:01,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 18:14:01,471 INFO L256 TraceCheckUtils]: 0: Hoare triple {17#true} call ULTIMATE.init(); {17#true} is VALID [2018-11-14 18:14:01,475 INFO L273 TraceCheckUtils]: 1: Hoare triple {17#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {17#true} is VALID [2018-11-14 18:14:01,475 INFO L273 TraceCheckUtils]: 2: Hoare triple {17#true} assume true; {17#true} is VALID [2018-11-14 18:14:01,476 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {17#true} {17#true} #18#return; {17#true} is VALID [2018-11-14 18:14:01,476 INFO L256 TraceCheckUtils]: 4: Hoare triple {17#true} call #t~ret2 := main(); {17#true} is VALID [2018-11-14 18:14:01,490 INFO L273 TraceCheckUtils]: 5: Hoare triple {17#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4bv32);call write~unchecked~intINTTYPE4(0bv32, ~#a~0.base, ~#a~0.offset, 4bv32);call write~unchecked~intINTTYPE4(4bv32, ~#a~0.base, ~#a~0.offset, 4bv32);~p~0.base, ~p~0.offset := ~#a~0.base, ~#a~0.offset;~p~0.base, ~p~0.offset := ~#a~0.base, ~#a~0.offset;call #t~mem0 := read~intINTTYPE4(~#a~0.base, ~#a~0.offset, 4bv32);call write~intINTTYPE4(~bvsub32(#t~mem0, 4bv32), ~#a~0.base, ~#a~0.offset, 4bv32);havoc #t~mem0;call #t~mem1 := read~intINTTYPE4(~p~0.base, ~p~0.offset, 4bv32); {37#(= (_ bv0 32) |main_#t~mem1|)} is VALID [2018-11-14 18:14:01,491 INFO L273 TraceCheckUtils]: 6: Hoare triple {37#(= (_ bv0 32) |main_#t~mem1|)} assume #t~mem1 != 0bv32;havoc #t~mem1; {18#false} is VALID [2018-11-14 18:14:01,492 INFO L273 TraceCheckUtils]: 7: Hoare triple {18#false} assume !false; {18#false} is VALID [2018-11-14 18:14:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 18:14:01,494 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 18:14:01,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 18:14:01,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-14 18:14:01,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-14 18:14:01,506 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 18:14:01,510 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-14 18:14:01,582 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:14:01,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-14 18:14:01,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-14 18:14:01,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-14 18:14:01,593 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-11-14 18:14:01,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:14:01,752 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-11-14 18:14:01,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-14 18:14:01,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-14 18:14:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 18:14:01,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-14 18:14:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2018-11-14 18:14:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-14 18:14:01,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2018-11-14 18:14:01,771 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2018-11-14 18:14:01,989 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:14:01,997 INFO L225 Difference]: With dead ends: 19 [2018-11-14 18:14:01,998 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 18:14:02,001 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-14 18:14:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 18:14:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 18:14:02,031 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 18:14:02,032 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 18:14:02,033 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 18:14:02,033 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 18:14:02,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:14:02,034 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 18:14:02,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 18:14:02,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:14:02,035 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:14:02,035 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 18:14:02,036 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 18:14:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:14:02,036 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 18:14:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 18:14:02,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:14:02,037 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:14:02,037 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 18:14:02,037 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 18:14:02,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 18:14:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 18:14:02,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-14 18:14:02,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 18:14:02,040 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 18:14:02,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-14 18:14:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 18:14:02,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:14:02,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 18:14:02,134 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-14 18:14:02,135 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-14 18:14:02,135 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 18:14:02,135 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 18:14:02,135 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 18:14:02,135 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 18:14:02,135 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 18:14:02,135 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2018-11-14 18:14:02,136 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 16 26) no Hoare annotation was computed. [2018-11-14 18:14:02,136 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 16 26) no Hoare annotation was computed. [2018-11-14 18:14:02,136 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2018-11-14 18:14:02,136 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-14 18:14:02,136 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 24) no Hoare annotation was computed. [2018-11-14 18:14:02,137 INFO L425 ceAbstractionStarter]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2018-11-14 18:14:02,138 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 18:14:02,139 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2018-11-14 18:14:02,139 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 18:14:02,139 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 18:14:02,139 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2018-11-14 18:14:02,139 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2018-11-14 18:14:02,139 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 18:14:02,140 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 18:14:02,140 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2018-11-14 18:14:02,140 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2018-11-14 18:14:02,140 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2018-11-14 18:14:02,140 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 18:14:02,141 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 18:14:02,141 INFO L163 areAnnotationChecker]: CFG has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 18:14:02,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 06:14:02 BoogieIcfgContainer [2018-11-14 18:14:02,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 18:14:02,145 INFO L168 Benchmark]: Toolchain (without parser) took 1978.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -701.7 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:02,148 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-14 18:14:02,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.86 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. [2018-11-14 18:14:02,149 INFO L168 Benchmark]: Boogie Preprocessor took 50.48 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. [2018-11-14 18:14:02,150 INFO L168 Benchmark]: RCFGBuilder took 576.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:02,151 INFO L168 Benchmark]: TraceAbstraction took 1003.72 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: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-11-14 18:14:02,155 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 342.86 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 Preprocessor took 50.48 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 576.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1003.72 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: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 6 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...