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_Default-Const.epf -i ../../../trunk/examples/svcomp/ldv-regression/test28_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 19:11:05,020 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 19:11:05,022 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 19:11:05,034 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 19:11:05,034 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 19:11:05,036 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 19:11:05,037 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 19:11:05,039 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 19:11:05,040 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 19:11:05,041 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 19:11:05,042 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 19:11:05,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 19:11:05,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 19:11:05,044 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 19:11:05,046 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 19:11:05,047 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 19:11:05,047 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 19:11:05,049 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 19:11:05,051 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 19:11:05,053 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 19:11:05,054 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 19:11:05,055 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 19:11:05,058 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 19:11:05,067 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default-Const.epf [2018-11-14 19:11:05,082 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 19:11:05,082 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 19:11:05,083 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 19:11:05,083 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 19:11:05,084 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 19:11:05,084 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 19:11:05,084 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 19:11:05,085 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 19:11:05,085 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 19:11:05,085 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 19:11:05,085 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 19:11:05,085 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 19:11:05,085 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 19:11:05,086 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 19:11:05,086 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 19:11:05,086 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 19:11:05,086 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 19:11:05,086 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 19:11:05,087 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 19:11:05,087 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 19:11:05,087 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 19:11:05,087 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 19:11:05,087 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 19:11:05,088 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 19:11:05,088 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 19:11:05,088 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 19:11:05,088 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 19:11:05,088 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 19:11:05,089 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 19:11:05,089 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 19:11:05,089 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 19:11:05,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 19:11:05,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 19:11:05,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 19:11:05,157 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 19:11:05,158 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 19:11:05,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28_true-unreach-call_true-termination.c [2018-11-14 19:11:05,227 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad07deaf2/bd4f55ffffbc412785aa6f1805b534d4/FLAG26a3b3b4b [2018-11-14 19:11:05,682 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 19:11:05,683 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28_true-unreach-call_true-termination.c [2018-11-14 19:11:05,689 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad07deaf2/bd4f55ffffbc412785aa6f1805b534d4/FLAG26a3b3b4b [2018-11-14 19:11:05,705 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad07deaf2/bd4f55ffffbc412785aa6f1805b534d4 [2018-11-14 19:11:05,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 19:11:05,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 19:11:05,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 19:11:05,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 19:11:05,722 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 19:11:05,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:11:05" (1/1) ... [2018-11-14 19:11:05,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391acb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:05, skipping insertion in model container [2018-11-14 19:11:05,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:11:05" (1/1) ... [2018-11-14 19:11:05,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 19:11:05,760 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 19:11:05,959 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:11:05,972 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 19:11:05,993 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:11:06,012 INFO L195 MainTranslator]: Completed translation [2018-11-14 19:11:06,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06 WrapperNode [2018-11-14 19:11:06,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 19:11:06,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 19:11:06,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 19:11:06,014 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 19:11:06,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (1/1) ... [2018-11-14 19:11:06,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 19:11:06,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 19:11:06,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 19:11:06,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 19:11:06,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (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 19:11:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 19:11:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 19:11:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 19:11:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 19:11:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 19:11:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 19:11:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 19:11:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-14 19:11:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-14 19:11:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 19:11:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 19:11:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 19:11:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-14 19:11:06,712 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 19:11:06,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:11:06 BoogieIcfgContainer [2018-11-14 19:11:06,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 19:11:06,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 19:11:06,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 19:11:06,717 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 19:11:06,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 07:11:05" (1/3) ... [2018-11-14 19:11:06,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9d1e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:11:06, skipping insertion in model container [2018-11-14 19:11:06,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:11:06" (2/3) ... [2018-11-14 19:11:06,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9d1e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:11:06, skipping insertion in model container [2018-11-14 19:11:06,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:11:06" (3/3) ... [2018-11-14 19:11:06,722 INFO L112 eAbstractionObserver]: Analyzing ICFG test28_true-unreach-call_true-termination.c [2018-11-14 19:11:06,732 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 19:11:06,741 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 19:11:06,758 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 19:11:06,788 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 19:11:06,789 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 19:11:06,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 19:11:06,790 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 19:11:06,790 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 19:11:06,790 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 19:11:06,790 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 19:11:06,790 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 19:11:06,790 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 19:11:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-14 19:11:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 19:11:06,816 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:11:06,818 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:11:06,820 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:11:06,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:11:06,827 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2018-11-14 19:11:06,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:11:06,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:11:06,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:06,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:11:06,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:11:07,202 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-14 19:11:07,206 INFO L273 TraceCheckUtils]: 1: Hoare triple {21#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {21#true} is VALID [2018-11-14 19:11:07,206 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-14 19:11:07,207 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #35#return; {21#true} is VALID [2018-11-14 19:11:07,207 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret4 := main(); {21#true} is VALID [2018-11-14 19:11:07,207 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.alloc(8);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.alloc(8);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {21#true} is VALID [2018-11-14 19:11:07,209 INFO L273 TraceCheckUtils]: 6: Hoare triple {21#true} assume ~n~0 != 0;#t~ite1.base, #t~ite1.offset := ~#d1~0.base, ~#d1~0.offset; {23#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_~#d1~0.offset| |main_#t~ite1.offset|))} is VALID [2018-11-14 19:11:07,221 INFO L273 TraceCheckUtils]: 7: Hoare triple {23#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_~#d1~0.offset| |main_#t~ite1.offset|))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset; {24#(and (= main_~pd~0.base |main_~#d1~0.base|) (= |main_~#d1~0.offset| main_~pd~0.offset))} is VALID [2018-11-14 19:11:07,235 INFO L273 TraceCheckUtils]: 8: Hoare triple {24#(and (= main_~pd~0.base |main_~#d1~0.base|) (= |main_~#d1~0.offset| main_~pd~0.offset))} assume !(~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset);call write~int(0, ~pd~0.base, ~pd~0.offset + 4, 4); {22#false} is VALID [2018-11-14 19:11:07,236 INFO L273 TraceCheckUtils]: 9: Hoare triple {22#false} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {22#false} is VALID [2018-11-14 19:11:07,236 INFO L273 TraceCheckUtils]: 10: Hoare triple {22#false} assume #t~short3;call #t~mem2 := read~int(~#d2~0.base, ~#d2~0.offset + 4, 4);#t~short3 := #t~mem2 != 0; {22#false} is VALID [2018-11-14 19:11:07,236 INFO L273 TraceCheckUtils]: 11: Hoare triple {22#false} assume #t~short3;havoc #t~mem2;havoc #t~short3; {22#false} is VALID [2018-11-14 19:11:07,237 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-14 19:11:07,240 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 19:11:07,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:11:07,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-14 19:11:07,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-14 19:11:07,252 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:11:07,256 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-14 19:11:07,407 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:07,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-14 19:11:07,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-14 19:11:07,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-14 19:11:07,422 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-11-14 19:11:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:07,731 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-11-14 19:11:07,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-14 19:11:07,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-14 19:11:07,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:11:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 19:11:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2018-11-14 19:11:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 19:11:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2018-11-14 19:11:07,752 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 41 transitions. [2018-11-14 19:11:07,979 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:07,991 INFO L225 Difference]: With dead ends: 34 [2018-11-14 19:11:07,991 INFO L226 Difference]: Without dead ends: 21 [2018-11-14 19:11:07,995 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-14 19:11:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-14 19:11:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2018-11-14 19:11:08,043 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:11:08,044 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 16 states. [2018-11-14 19:11:08,044 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 16 states. [2018-11-14 19:11:08,044 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 16 states. [2018-11-14 19:11:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:08,048 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-14 19:11:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-14 19:11:08,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:08,050 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:08,050 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 21 states. [2018-11-14 19:11:08,050 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 21 states. [2018-11-14 19:11:08,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:08,054 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-14 19:11:08,054 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-14 19:11:08,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:08,055 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:08,055 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:11:08,055 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:11:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-14 19:11:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-14 19:11:08,059 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2018-11-14 19:11:08,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:11:08,060 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-14 19:11:08,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-14 19:11:08,060 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-14 19:11:08,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 19:11:08,061 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:11:08,061 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:11:08,061 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:11:08,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:11:08,062 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2018-11-14 19:11:08,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:11:08,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:11:08,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:08,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:11:08,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:11:08,310 INFO L256 TraceCheckUtils]: 0: Hoare triple {131#true} call ULTIMATE.init(); {131#true} is VALID [2018-11-14 19:11:08,310 INFO L273 TraceCheckUtils]: 1: Hoare triple {131#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {131#true} is VALID [2018-11-14 19:11:08,311 INFO L273 TraceCheckUtils]: 2: Hoare triple {131#true} assume true; {131#true} is VALID [2018-11-14 19:11:08,312 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {131#true} {131#true} #35#return; {131#true} is VALID [2018-11-14 19:11:08,312 INFO L256 TraceCheckUtils]: 4: Hoare triple {131#true} call #t~ret4 := main(); {131#true} is VALID [2018-11-14 19:11:08,314 INFO L273 TraceCheckUtils]: 5: Hoare triple {131#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.alloc(8);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.alloc(8);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {133#(not (= |main_~#d1~0.base| |main_~#d2~0.base|))} is VALID [2018-11-14 19:11:08,315 INFO L273 TraceCheckUtils]: 6: Hoare triple {133#(not (= |main_~#d1~0.base| |main_~#d2~0.base|))} assume ~n~0 != 0;#t~ite1.base, #t~ite1.offset := ~#d1~0.base, ~#d1~0.offset; {134#(and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= |main_#t~ite1.base| |main_~#d1~0.base|))} is VALID [2018-11-14 19:11:08,316 INFO L273 TraceCheckUtils]: 7: Hoare triple {134#(and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= |main_#t~ite1.base| |main_~#d1~0.base|))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset; {135#(and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= main_~pd~0.base |main_~#d1~0.base|))} is VALID [2018-11-14 19:11:08,319 INFO L273 TraceCheckUtils]: 8: Hoare triple {135#(and (not (= |main_~#d1~0.base| |main_~#d2~0.base|)) (= main_~pd~0.base |main_~#d1~0.base|))} assume ~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset;call write~int(0, ~pd~0.base, ~pd~0.offset + 0, 4); {136#(not (= main_~pd~0.base |main_~#d2~0.base|))} is VALID [2018-11-14 19:11:08,320 INFO L273 TraceCheckUtils]: 9: Hoare triple {136#(not (= main_~pd~0.base |main_~#d2~0.base|))} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {137#(not |main_#t~short3|)} is VALID [2018-11-14 19:11:08,323 INFO L273 TraceCheckUtils]: 10: Hoare triple {137#(not |main_#t~short3|)} assume #t~short3;call #t~mem2 := read~int(~#d2~0.base, ~#d2~0.offset + 4, 4);#t~short3 := #t~mem2 != 0; {132#false} is VALID [2018-11-14 19:11:08,323 INFO L273 TraceCheckUtils]: 11: Hoare triple {132#false} assume #t~short3;havoc #t~mem2;havoc #t~short3; {132#false} is VALID [2018-11-14 19:11:08,323 INFO L273 TraceCheckUtils]: 12: Hoare triple {132#false} assume !false; {132#false} is VALID [2018-11-14 19:11:08,325 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 19:11:08,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:11:08,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-14 19:11:08,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-14 19:11:08,328 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:11:08,328 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-14 19:11:08,365 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:08,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-14 19:11:08,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-14 19:11:08,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-14 19:11:08,366 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2018-11-14 19:11:09,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:09,010 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-14 19:11:09,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-14 19:11:09,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-14 19:11:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:11:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-14 19:11:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 25 transitions. [2018-11-14 19:11:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-14 19:11:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 25 transitions. [2018-11-14 19:11:09,016 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 25 transitions. [2018-11-14 19:11:09,055 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:09,056 INFO L225 Difference]: With dead ends: 23 [2018-11-14 19:11:09,057 INFO L226 Difference]: Without dead ends: 14 [2018-11-14 19:11:09,058 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-14 19:11:09,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-14 19:11:09,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-14 19:11:09,067 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:11:09,067 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand 14 states. [2018-11-14 19:11:09,067 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2018-11-14 19:11:09,067 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2018-11-14 19:11:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:09,069 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-11-14 19:11:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-14 19:11:09,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:09,070 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:09,070 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2018-11-14 19:11:09,070 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2018-11-14 19:11:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:09,072 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-11-14 19:11:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-14 19:11:09,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:09,072 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:09,073 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:11:09,073 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:11:09,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-14 19:11:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-11-14 19:11:09,075 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2018-11-14 19:11:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:11:09,075 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-11-14 19:11:09,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-14 19:11:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-11-14 19:11:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 19:11:09,076 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:11:09,076 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:11:09,077 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:11:09,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:11:09,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2018-11-14 19:11:09,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:11:09,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:11:09,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:09,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:11:09,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:11:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:11:09,470 INFO L256 TraceCheckUtils]: 0: Hoare triple {220#true} call ULTIMATE.init(); {220#true} is VALID [2018-11-14 19:11:09,470 INFO L273 TraceCheckUtils]: 1: Hoare triple {220#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {220#true} is VALID [2018-11-14 19:11:09,471 INFO L273 TraceCheckUtils]: 2: Hoare triple {220#true} assume true; {220#true} is VALID [2018-11-14 19:11:09,471 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {220#true} {220#true} #35#return; {220#true} is VALID [2018-11-14 19:11:09,471 INFO L256 TraceCheckUtils]: 4: Hoare triple {220#true} call #t~ret4 := main(); {220#true} is VALID [2018-11-14 19:11:09,472 INFO L273 TraceCheckUtils]: 5: Hoare triple {220#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.alloc(8);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.alloc(8);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {222#(= |main_~#d2~0.offset| 0)} is VALID [2018-11-14 19:11:09,473 INFO L273 TraceCheckUtils]: 6: Hoare triple {222#(= |main_~#d2~0.offset| 0)} assume !(~n~0 != 0);#t~ite1.base, #t~ite1.offset := ~#d2~0.base, ~#d2~0.offset; {223#(and (= 0 |main_#t~ite1.offset|) (= |main_~#d2~0.base| |main_#t~ite1.base|) (= |main_~#d2~0.offset| 0))} is VALID [2018-11-14 19:11:09,474 INFO L273 TraceCheckUtils]: 7: Hoare triple {223#(and (= 0 |main_#t~ite1.offset|) (= |main_~#d2~0.base| |main_#t~ite1.base|) (= |main_~#d2~0.offset| 0))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset; {224#(and (= |main_~#d2~0.base| main_~pd~0.base) (= main_~pd~0.offset |main_~#d2~0.offset|))} is VALID [2018-11-14 19:11:09,476 INFO L273 TraceCheckUtils]: 8: Hoare triple {224#(and (= |main_~#d2~0.base| main_~pd~0.base) (= main_~pd~0.offset |main_~#d2~0.offset|))} assume !(~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset);call write~int(0, ~pd~0.base, ~pd~0.offset + 4, 4); {225#(and (= |main_~#d2~0.base| main_~pd~0.base) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= main_~pd~0.offset |main_~#d2~0.offset|))} is VALID [2018-11-14 19:11:09,483 INFO L273 TraceCheckUtils]: 9: Hoare triple {225#(and (= |main_~#d2~0.base| main_~pd~0.base) (= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4))) (= main_~pd~0.offset |main_~#d2~0.offset|))} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {226#(= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)))} is VALID [2018-11-14 19:11:09,484 INFO L273 TraceCheckUtils]: 10: Hoare triple {226#(= 0 (select (select |#memory_int| |main_~#d2~0.base|) (+ |main_~#d2~0.offset| 4)))} assume #t~short3;call #t~mem2 := read~int(~#d2~0.base, ~#d2~0.offset + 4, 4);#t~short3 := #t~mem2 != 0; {227#(not |main_#t~short3|)} is VALID [2018-11-14 19:11:09,485 INFO L273 TraceCheckUtils]: 11: Hoare triple {227#(not |main_#t~short3|)} assume #t~short3;havoc #t~mem2;havoc #t~short3; {221#false} is VALID [2018-11-14 19:11:09,485 INFO L273 TraceCheckUtils]: 12: Hoare triple {221#false} assume !false; {221#false} is VALID [2018-11-14 19:11:09,486 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 19:11:09,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:11:09,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-14 19:11:09,487 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-14 19:11:09,489 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:11:09,489 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-14 19:11:09,511 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:09,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-14 19:11:09,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-14 19:11:09,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-14 19:11:09,512 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 8 states. [2018-11-14 19:11:09,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:09,862 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-11-14 19:11:09,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-14 19:11:09,862 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-14 19:11:09,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:11:09,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-14 19:11:09,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2018-11-14 19:11:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-14 19:11:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2018-11-14 19:11:09,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 13 transitions. [2018-11-14 19:11:09,891 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 19:11:09,892 INFO L225 Difference]: With dead ends: 14 [2018-11-14 19:11:09,892 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 19:11:09,893 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-14 19:11:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 19:11:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 19:11:09,894 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:11:09,894 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:09,895 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:09,895 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:09,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:09,895 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 19:11:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 19:11:09,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:09,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:09,896 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:09,896 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 19:11:09,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:11:09,897 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 19:11:09,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 19:11:09,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:09,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:11:09,897 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:11:09,898 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:11:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 19:11:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 19:11:09,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-14 19:11:09,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:11:09,898 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 19:11:09,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-14 19:11:09,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 19:11:09,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:11:09,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 19:11:09,941 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-14 19:11:09,942 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-14 19:11:09,942 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 19:11:09,942 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 19:11:09,942 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 19:11:09,942 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 19:11:09,942 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 19:11:09,943 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2018-11-14 19:11:09,943 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2018-11-14 19:11:09,943 INFO L421 ceAbstractionStarter]: At program point L21(lines 11 28) the Hoare annotation is: false [2018-11-14 19:11:09,943 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-11-14 19:11:09,943 INFO L425 ceAbstractionStarter]: For program point L15-2(lines 15 19) no Hoare annotation was computed. [2018-11-14 19:11:09,944 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2018-11-14 19:11:09,944 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2018-11-14 19:11:09,944 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-14 19:11:09,944 INFO L425 ceAbstractionStarter]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2018-11-14 19:11:09,944 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-14 19:11:09,944 INFO L425 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-14 19:11:09,946 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 19:11:09,947 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-14 19:11:09,947 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 19:11:09,947 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 19:11:09,947 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-14 19:11:09,947 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-14 19:11:09,948 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 19:11:09,948 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 19:11:09,948 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2018-11-14 19:11:09,948 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 19:11:09,948 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 19:11:09,948 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2018-11-14 19:11:09,949 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-14 19:11:09,949 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-14 19:11:09,949 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2018-11-14 19:11:09,949 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2018-11-14 19:11:09,949 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-14 19:11:09,949 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 19:11:09,950 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 19:11:09,950 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 19:11:09,950 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 19:11:09,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 07:11:09 BoogieIcfgContainer [2018-11-14 19:11:09,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 19:11:09,958 INFO L168 Benchmark]: Toolchain (without parser) took 4242.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -617.2 MB). Peak memory consumption was 137.8 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:09,960 INFO L168 Benchmark]: CDTParser took 0.26 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 19:11:09,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.40 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 19:11:09,962 INFO L168 Benchmark]: Boogie Preprocessor took 45.03 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 19:11:09,962 INFO L168 Benchmark]: RCFGBuilder took 653.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:09,964 INFO L168 Benchmark]: TraceAbstraction took 3242.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 160.8 MB). Peak memory consumption was 160.8 MB. Max. memory is 7.1 GB. [2018-11-14 19:11:09,968 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 0.26 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 295.40 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 45.03 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 653.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3242.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 160.8 MB). Peak memory consumption was 160.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 32 SDslu, 71 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...