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/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:06:57,579 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:06:57,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:06:57,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:06:57,594 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:06:57,595 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:06:57,596 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:06:57,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:06:57,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:06:57,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:06:57,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:06:57,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:06:57,602 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:06:57,605 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:06:57,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:06:57,607 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:06:57,611 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:06:57,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:06:57,618 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:06:57,619 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:06:57,620 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:06:57,621 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:06:57,623 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-23 11:06:57,632 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 11:06:57,657 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:06:57,658 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:06:57,659 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:06:57,659 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:06:57,659 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:06:57,661 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:06:57,661 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:06:57,661 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:06:57,661 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:06:57,662 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:06:57,662 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:06:57,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:06:57,662 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:06:57,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:06:57,662 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:06:57,663 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:06:57,663 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:06:57,663 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:06:57,663 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:06:57,664 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:06:57,664 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:06:57,664 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:06:57,664 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:06:57,664 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:06:57,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:06:57,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:06:57,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:06:57,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:06:57,667 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:06:57,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:06:57,667 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:06:57,667 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:06:57,667 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:06:57,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:06:57,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:06:57,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:06:57,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:06:57,739 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:06:57,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i [2018-11-23 11:06:57,802 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449726e80/acf3792c2cbf467c8b7b2ee11bf93f7d/FLAGc7d16b7ff [2018-11-23 11:06:58,218 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:06:58,219 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i [2018-11-23 11:06:58,224 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449726e80/acf3792c2cbf467c8b7b2ee11bf93f7d/FLAGc7d16b7ff [2018-11-23 11:06:58,606 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449726e80/acf3792c2cbf467c8b7b2ee11bf93f7d [2018-11-23 11:06:58,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:06:58,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:06:58,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:06:58,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:06:58,622 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:06:58,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:58,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e891ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58, skipping insertion in model container [2018-11-23 11:06:58,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:58,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:06:58,659 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:06:58,922 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:06:58,946 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:06:58,964 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:06:58,985 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:06:58,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58 WrapperNode [2018-11-23 11:06:58,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:06:58,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:06:58,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:06:58,987 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:06:58,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:06:59,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:06:59,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:06:59,017 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:06:59,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (1/1) ... [2018-11-23 11:06:59,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:06:59,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:06:59,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:06:59,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:06:59,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (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 [2018-11-23 11:06:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:06:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:06:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:06:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 11:06:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:06:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:06:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 11:06:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:06:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:06:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:06:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 11:06:59,576 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:06:59,577 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 11:06:59,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:59 BoogieIcfgContainer [2018-11-23 11:06:59,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:06:59,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:06:59,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:06:59,582 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:06:59,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:06:58" (1/3) ... [2018-11-23 11:06:59,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0edbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:59, skipping insertion in model container [2018-11-23 11:06:59,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:58" (2/3) ... [2018-11-23 11:06:59,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0edbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:59, skipping insertion in model container [2018-11-23 11:06:59,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:59" (3/3) ... [2018-11-23 11:06:59,586 INFO L112 eAbstractionObserver]: Analyzing ICFG volatile_alias_true-termination.c_true-unreach-call.i [2018-11-23 11:06:59,595 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:06:59,603 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:06:59,622 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:06:59,655 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:06:59,656 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:06:59,656 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:06:59,656 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:06:59,656 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:06:59,657 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:06:59,657 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:06:59,657 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:06:59,657 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:06:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-23 11:06:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 11:06:59,680 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:06:59,681 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:06:59,683 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:06:59,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:06:59,690 INFO L82 PathProgramCache]: Analyzing trace with hash 2096341077, now seen corresponding path program 1 times [2018-11-23 11:06:59,695 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:06:59,696 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 [2018-11-23 11:06:59,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:06:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:06:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:06:59,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:06:59,956 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 11:06:59,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 13 treesize of output 5 [2018-11-23 11:06:59,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:00,005 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:00,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:00,009 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2018-11-23 11:07:00,015 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 11:07:00,016 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_int_5|, main_~p~0.base]. (let ((.cse0 (select (select |v_#memory_int_5| main_~p~0.base) (_ bv0 32)))) (and (= .cse0 (_ bv4 32)) (= (bvadd |main_#t~mem1| (_ bv4 32)) .cse0))) [2018-11-23 11:07:00,016 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (= (bvadd |main_#t~mem1| (_ bv4 32)) (_ bv4 32)) [2018-11-23 11:07:00,061 INFO L256 TraceCheckUtils]: 0: Hoare triple {17#true} call ULTIMATE.init(); {17#true} is VALID [2018-11-23 11:07:00,065 INFO L273 TraceCheckUtils]: 1: Hoare triple {17#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {17#true} is VALID [2018-11-23 11:07:00,066 INFO L273 TraceCheckUtils]: 2: Hoare triple {17#true} assume true; {17#true} is VALID [2018-11-23 11:07:00,066 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {17#true} {17#true} #18#return; {17#true} is VALID [2018-11-23 11:07:00,067 INFO L256 TraceCheckUtils]: 4: Hoare triple {17#true} call #t~ret2 := main(); {17#true} is VALID [2018-11-23 11:07:00,076 INFO L273 TraceCheckUtils]: 5: Hoare triple {17#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4bv32);call write~init~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#(= |main_#t~mem1| (_ bv0 32))} is VALID [2018-11-23 11:07:00,078 INFO L273 TraceCheckUtils]: 6: Hoare triple {37#(= |main_#t~mem1| (_ bv0 32))} assume 0bv32 != #t~mem1;havoc #t~mem1; {18#false} is VALID [2018-11-23 11:07:00,078 INFO L273 TraceCheckUtils]: 7: Hoare triple {18#false} assume !false; {18#false} is VALID [2018-11-23 11:07:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:07:00,080 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:07:00,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:07:00,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 11:07:00,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 11:07:00,097 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:07:00,102 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 11:07:00,193 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:07:00,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 11:07:00,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 11:07:00,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 11:07:00,206 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-11-23 11:07:00,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:00,462 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-11-23 11:07:00,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 11:07:00,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 11:07:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:07:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 11:07:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2018-11-23 11:07:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 11:07:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2018-11-23 11:07:00,489 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2018-11-23 11:07:00,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:07:00,636 INFO L225 Difference]: With dead ends: 19 [2018-11-23 11:07:00,641 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:07:00,644 INFO L631 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 [2018-11-23 11:07:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:07:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:07:00,668 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:07:00,668 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:00,669 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:00,669 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:00,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:00,670 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:07:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:00,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:00,670 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:07:00,670 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:00,671 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:00,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:00,671 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:07:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:00,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:00,672 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:07:00,672 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:07:00,672 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:07:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:07:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:07:00,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-23 11:07:00,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:07:00,675 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:07:00,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 11:07:00,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:00,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:00,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:07:00,757 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:07:00,758 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:07:00,758 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:07:00,758 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:07:00,758 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 11:07:00,758 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:07:00,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:07:00,759 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-23 11:07:00,759 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-23 11:07:00,759 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-23 11:07:00,759 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2018-11-23 11:07:00,759 INFO L448 ceAbstractionStarter]: For program point L12-2(lines 12 14) no Hoare annotation was computed. [2018-11-23 11:07:00,760 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-23 11:07:00,760 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-11-23 11:07:00,762 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 11:07:00,762 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-23 11:07:00,762 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 11:07:00,762 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:07:00,763 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-23 11:07:00,763 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-23 11:07:00,763 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:07:00,763 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:07:00,763 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-23 11:07:00,763 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-23 11:07:00,764 WARN L170 areAnnotationChecker]: L12-2 has no Hoare annotation [2018-11-23 11:07:00,764 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:07:00,764 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 11:07:00,764 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. [2018-11-23 11:07:00,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:07:00 BoogieIcfgContainer [2018-11-23 11:07:00,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:07:00,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:07:00,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:07:00,767 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:07:00,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:59" (3/4) ... [2018-11-23 11:07:00,771 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:07:00,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:07:00,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:07:00,784 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 11:07:00,784 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 11:07:00,784 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:07:00,785 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:07:00,834 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i-witness.graphml [2018-11-23 11:07:00,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:07:00,836 INFO L168 Benchmark]: Toolchain (without parser) took 2219.33 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 706.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -682.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:00,838 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-23 11:07:00,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.67 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. [2018-11-23 11:07:00,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.16 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. [2018-11-23 11:07:00,840 INFO L168 Benchmark]: Boogie Preprocessor took 33.10 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. [2018-11-23 11:07:00,840 INFO L168 Benchmark]: RCFGBuilder took 527.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 706.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -759.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:00,841 INFO L168 Benchmark]: TraceAbstraction took 1187.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:00,842 INFO L168 Benchmark]: Witness Printer took 67.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:00,847 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 0.23 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. * CACSL2BoogieTranslator took 367.67 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 30.16 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 33.10 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 527.11 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 706.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -759.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1187.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. * Witness Printer took 67.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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, 1.1s 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, 0.2s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 6 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 8 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...