/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:30:02,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:30:02,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:30:02,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-17 22:30:02,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:30:02,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:30:02,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:30:02,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:30:02,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:30:02,700 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:30:02,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:30:02,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:30:02,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:30:02,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:30:02,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:30:02,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:30:02,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:30:02,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:30:02,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:30:02,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:30:02,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:30:02,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:30:02,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:30:02,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:30:02,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:30:02,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:30:02,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:30:02,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:30:02,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:30:02,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:30:02,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:30:02,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:30:02,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:30:02,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:30:02,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:30:03,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:30:03,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:30:03,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:30:03,037 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:30:03,037 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:30:03,038 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2020-07-17 22:30:03,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89a57477/b9ef30dffcf94eddb2c6bc7c799cd587/FLAG163f79f7f [2020-07-17 22:30:03,578 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:30:03,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2020-07-17 22:30:03,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89a57477/b9ef30dffcf94eddb2c6bc7c799cd587/FLAG163f79f7f [2020-07-17 22:30:03,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89a57477/b9ef30dffcf94eddb2c6bc7c799cd587 [2020-07-17 22:30:03,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:30:03,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:30:03,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:30:03,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:30:03,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:30:03,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:30:03" (1/1) ... [2020-07-17 22:30:03,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cac8201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:03, skipping insertion in model container [2020-07-17 22:30:03,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:30:03" (1/1) ... [2020-07-17 22:30:03,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:30:03,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:30:04,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:30:04,190 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:30:04,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:30:04,228 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:30:04,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04 WrapperNode [2020-07-17 22:30:04,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:30:04,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:30:04,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:30:04,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:30:04,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (1/1) ... [2020-07-17 22:30:04,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:30:04,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:30:04,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:30:04,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:30:04,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (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 [2020-07-17 22:30:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:30:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:30:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-07-17 22:30:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-07-17 22:30:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-07-17 22:30:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:30:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:30:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:30:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-17 22:30:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-17 22:30:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:30:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-07-17 22:30:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-17 22:30:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:30:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:30:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:30:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:30:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 22:30:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:30:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:30:04,852 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:30:04,852 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 22:30:04,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:30:04 BoogieIcfgContainer [2020-07-17 22:30:04,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:30:04,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:30:04,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:30:04,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:30:04,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:30:03" (1/3) ... [2020-07-17 22:30:04,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd46ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:30:04, skipping insertion in model container [2020-07-17 22:30:04,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:30:04" (2/3) ... [2020-07-17 22:30:04,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd46ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:30:04, skipping insertion in model container [2020-07-17 22:30:04,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:30:04" (3/3) ... [2020-07-17 22:30:04,867 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2020-07-17 22:30:04,875 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:30:04,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:30:04,893 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:30:04,915 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:30:04,915 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:30:04,915 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:30:04,915 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:30:04,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:30:04,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:30:04,916 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:30:04,916 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:30:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-17 22:30:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-17 22:30:04,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:30:04,946 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:30:04,946 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:30:04,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:30:04,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1351082661, now seen corresponding path program 1 times [2020-07-17 22:30:04,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:30:04,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871109086] [2020-07-17 22:30:04,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:30:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:05,540 INFO L280 TraceCheckUtils]: 0: Hoare triple {58#(and (= |~#d2~0.offset| |old(~#d2~0.offset)|) (= |~#d1~0.base| |old(~#d1~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#d2~0.base| |old(~#d2~0.base)|) (= |~#d1~0.offset| |old(~#d1~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#d1~0.base, ~#d1~0.offset, 4);call write~init~int(0, ~#d1~0.base, 4 + ~#d1~0.offset, 4);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#d2~0.base, ~#d2~0.offset, 4);call write~init~int(0, ~#d2~0.base, 4 + ~#d2~0.offset, 4); {34#true} is VALID [2020-07-17 22:30:05,541 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:30:05,542 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #48#return; {34#true} is VALID [2020-07-17 22:30:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:05,570 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(= |#memory_int| |old(#memory_int)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;call write~int(#t~nondet0, ~#d1~0.base, ~#d1~0.offset, 4);havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;call write~int(#t~nondet1, ~#d1~0.base, 4 + ~#d1~0.offset, 4);havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;call write~int(#t~nondet2, ~#d2~0.base, ~#d2~0.offset, 4);havoc #t~nondet2;assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647;call write~int(#t~nondet3, ~#d2~0.base, 4 + ~#d2~0.offset, 4);havoc #t~nondet3; {34#true} is VALID [2020-07-17 22:30:05,570 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:30:05,570 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #40#return; {34#true} is VALID [2020-07-17 22:30:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:05,645 INFO L280 TraceCheckUtils]: 0: Hoare triple {34#true} assume !(0 != #t~nondet4 % 256);#t~ite5.base, #t~ite5.offset := ~#d2~0.base, ~#d2~0.offset; {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,647 INFO L280 TraceCheckUtils]: 1: Hoare triple {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} #res.base, #res.offset := #t~ite5.base, #t~ite5.offset;havoc #t~ite5.base, #t~ite5.offset;havoc #t~nondet4; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,648 INFO L280 TraceCheckUtils]: 2: Hoare triple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} assume true; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,650 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} {34#true} #42#return; {46#(and (= |~#d2~0.base| |main_#t~ret8.base|) (= |main_#t~ret8.offset| |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:05,673 INFO L280 TraceCheckUtils]: 0: Hoare triple {34#true} assume !(0 != #t~nondet4 % 256);#t~ite5.base, #t~ite5.offset := ~#d2~0.base, ~#d2~0.offset; {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,674 INFO L280 TraceCheckUtils]: 1: Hoare triple {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} #res.base, #res.offset := #t~ite5.base, #t~ite5.offset;havoc #t~ite5.base, #t~ite5.offset;havoc #t~nondet4; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,675 INFO L280 TraceCheckUtils]: 2: Hoare triple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} assume true; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,677 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} {47#(and (= |~#d2~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d2~0.offset|))} #44#return; {52#(and (= |main_#t~ret9.base| main_~pd1~0.base) (= main_~pd1~0.offset |main_#t~ret9.offset|))} is VALID [2020-07-17 22:30:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:30:05,735 INFO L280 TraceCheckUtils]: 0: Hoare triple {34#true} ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset;~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset;call #t~mem6 := read~int(~s1.base, ~s1.offset, 4);call #t~mem7 := read~int(~s2.base, ~s2.offset, 4);#res := (if #t~mem6 == #t~mem7 then 1 else 0);havoc #t~mem7;havoc #t~mem6; {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} is VALID [2020-07-17 22:30:05,736 INFO L280 TraceCheckUtils]: 1: Hoare triple {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} assume true; {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} is VALID [2020-07-17 22:30:05,738 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} {53#(and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))} #46#return; {57#(<= 1 |main_#t~ret10|)} is VALID [2020-07-17 22:30:05,741 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {58#(and (= |~#d2~0.offset| |old(~#d2~0.offset)|) (= |~#d1~0.base| |old(~#d1~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#d2~0.base| |old(~#d2~0.base)|) (= |~#d1~0.offset| |old(~#d1~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:30:05,741 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(and (= |~#d2~0.offset| |old(~#d2~0.offset)|) (= |~#d1~0.base| |old(~#d1~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#d2~0.base| |old(~#d2~0.base)|) (= |~#d1~0.offset| |old(~#d1~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#d1~0.base, ~#d1~0.offset, 4);call write~init~int(0, ~#d1~0.base, 4 + ~#d1~0.offset, 4);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#d2~0.base, ~#d2~0.offset, 4);call write~init~int(0, ~#d2~0.base, 4 + ~#d2~0.offset, 4); {34#true} is VALID [2020-07-17 22:30:05,742 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:30:05,742 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #48#return; {34#true} is VALID [2020-07-17 22:30:05,742 INFO L263 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret11 := main(); {34#true} is VALID [2020-07-17 22:30:05,744 INFO L263 TraceCheckUtils]: 5: Hoare triple {34#true} call init(); {59#(= |#memory_int| |old(#memory_int)|)} is VALID [2020-07-17 22:30:05,744 INFO L280 TraceCheckUtils]: 6: Hoare triple {59#(= |#memory_int| |old(#memory_int)|)} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;call write~int(#t~nondet0, ~#d1~0.base, ~#d1~0.offset, 4);havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;call write~int(#t~nondet1, ~#d1~0.base, 4 + ~#d1~0.offset, 4);havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;call write~int(#t~nondet2, ~#d2~0.base, ~#d2~0.offset, 4);havoc #t~nondet2;assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647;call write~int(#t~nondet3, ~#d2~0.base, 4 + ~#d2~0.offset, 4);havoc #t~nondet3; {34#true} is VALID [2020-07-17 22:30:05,745 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:30:05,745 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {34#true} {34#true} #40#return; {34#true} is VALID [2020-07-17 22:30:05,745 INFO L263 TraceCheckUtils]: 9: Hoare triple {34#true} call #t~ret8.base, #t~ret8.offset := get_dummy(); {34#true} is VALID [2020-07-17 22:30:05,747 INFO L280 TraceCheckUtils]: 10: Hoare triple {34#true} assume !(0 != #t~nondet4 % 256);#t~ite5.base, #t~ite5.offset := ~#d2~0.base, ~#d2~0.offset; {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,748 INFO L280 TraceCheckUtils]: 11: Hoare triple {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} #res.base, #res.offset := #t~ite5.base, #t~ite5.offset;havoc #t~ite5.base, #t~ite5.offset;havoc #t~nondet4; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,749 INFO L280 TraceCheckUtils]: 12: Hoare triple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} assume true; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,751 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} {34#true} #42#return; {46#(and (= |~#d2~0.base| |main_#t~ret8.base|) (= |main_#t~ret8.offset| |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,752 INFO L280 TraceCheckUtils]: 14: Hoare triple {46#(and (= |~#d2~0.base| |main_#t~ret8.base|) (= |main_#t~ret8.offset| |~#d2~0.offset|))} ~pd1~0.base, ~pd1~0.offset := #t~ret8.base, #t~ret8.offset;havoc #t~ret8.base, #t~ret8.offset; {47#(and (= |~#d2~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,753 INFO L263 TraceCheckUtils]: 15: Hoare triple {47#(and (= |~#d2~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d2~0.offset|))} call #t~ret9.base, #t~ret9.offset := get_dummy(); {34#true} is VALID [2020-07-17 22:30:05,754 INFO L280 TraceCheckUtils]: 16: Hoare triple {34#true} assume !(0 != #t~nondet4 % 256);#t~ite5.base, #t~ite5.offset := ~#d2~0.base, ~#d2~0.offset; {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} is VALID [2020-07-17 22:30:05,755 INFO L280 TraceCheckUtils]: 17: Hoare triple {60#(and (= |~#d2~0.base| |get_dummy_#t~ite5.base|) (= |get_dummy_#t~ite5.offset| |~#d2~0.offset|))} #res.base, #res.offset := #t~ite5.base, #t~ite5.offset;havoc #t~ite5.base, #t~ite5.offset;havoc #t~nondet4; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,756 INFO L280 TraceCheckUtils]: 18: Hoare triple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} assume true; {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} is VALID [2020-07-17 22:30:05,758 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {61#(and (= |get_dummy_#res.offset| |~#d2~0.offset|) (= |get_dummy_#res.base| |~#d2~0.base|))} {47#(and (= |~#d2~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d2~0.offset|))} #44#return; {52#(and (= |main_#t~ret9.base| main_~pd1~0.base) (= main_~pd1~0.offset |main_#t~ret9.offset|))} is VALID [2020-07-17 22:30:05,759 INFO L280 TraceCheckUtils]: 20: Hoare triple {52#(and (= |main_#t~ret9.base| main_~pd1~0.base) (= main_~pd1~0.offset |main_#t~ret9.offset|))} ~pd2~0.base, ~pd2~0.offset := #t~ret9.base, #t~ret9.offset;havoc #t~ret9.base, #t~ret9.offset; {53#(and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))} is VALID [2020-07-17 22:30:05,760 INFO L280 TraceCheckUtils]: 21: Hoare triple {53#(and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))} assume (~pd1~0.base != 0 || ~pd1~0.offset != 0) && ~pd1~0.base == ~pd2~0.base && ~pd1~0.offset == ~pd2~0.offset; {53#(and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))} is VALID [2020-07-17 22:30:05,761 INFO L263 TraceCheckUtils]: 22: Hoare triple {53#(and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))} call #t~ret10 := check(~pd1~0.base, ~pd1~0.offset, ~pd2~0.base, ~pd2~0.offset); {34#true} is VALID [2020-07-17 22:30:05,762 INFO L280 TraceCheckUtils]: 23: Hoare triple {34#true} ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset;~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset;call #t~mem6 := read~int(~s1.base, ~s1.offset, 4);call #t~mem7 := read~int(~s2.base, ~s2.offset, 4);#res := (if #t~mem6 == #t~mem7 then 1 else 0);havoc #t~mem7;havoc #t~mem6; {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} is VALID [2020-07-17 22:30:05,763 INFO L280 TraceCheckUtils]: 24: Hoare triple {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} assume true; {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} is VALID [2020-07-17 22:30:05,766 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {62#(or (not (= |check_#in~s1.base| |check_#in~s2.base|)) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (<= 1 |check_#res|))} {53#(and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))} #46#return; {57#(<= 1 |main_#t~ret10|)} is VALID [2020-07-17 22:30:05,767 INFO L280 TraceCheckUtils]: 26: Hoare triple {57#(<= 1 |main_#t~ret10|)} assume -2147483648 <= #t~ret10 && #t~ret10 <= 2147483647; {57#(<= 1 |main_#t~ret10|)} is VALID [2020-07-17 22:30:05,768 INFO L280 TraceCheckUtils]: 27: Hoare triple {57#(<= 1 |main_#t~ret10|)} assume 0 == #t~ret10;havoc #t~ret10; {35#false} is VALID [2020-07-17 22:30:05,768 INFO L280 TraceCheckUtils]: 28: Hoare triple {35#false} assume !false; {35#false} is VALID [2020-07-17 22:30:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-17 22:30:05,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871109086] [2020-07-17 22:30:05,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:30:05,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-17 22:30:05,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396837230] [2020-07-17 22:30:05,782 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2020-07-17 22:30:05,785 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:30:05,789 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-17 22:30:05,867 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:05,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 22:30:05,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:30:05,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 22:30:05,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-07-17 22:30:05,881 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 12 states. [2020-07-17 22:30:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:07,803 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2020-07-17 22:30:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 22:30:07,804 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2020-07-17 22:30:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:30:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:30:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 65 transitions. [2020-07-17 22:30:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-17 22:30:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 65 transitions. [2020-07-17 22:30:07,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 65 transitions. [2020-07-17 22:30:07,994 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:30:08,003 INFO L225 Difference]: With dead ends: 56 [2020-07-17 22:30:08,010 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:30:08,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2020-07-17 22:30:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:30:08,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:30:08,046 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:30:08,047 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:08,048 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:08,051 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:08,052 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:30:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:30:08,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:08,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:08,056 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:08,056 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:30:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:30:08,056 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:30:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:30:08,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:08,057 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:30:08,057 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:30:08,058 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:30:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:30:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:30:08,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-07-17 22:30:08,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:30:08,060 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:30:08,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 22:30:08,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:30:08,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:30:08,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:30:08,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:30:08,286 INFO L268 CegarLoopResult]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2020-07-17 22:30:08,286 INFO L264 CegarLoopResult]: At program point initENTRY(lines 11 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-07-17 22:30:08,286 INFO L268 CegarLoopResult]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2020-07-17 22:30:08,287 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:30:08,287 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~#d2~0.base)| |~#d2~0.base|) (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |old(~#d2~0.offset)| |~#d2~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#d1~0.base)| |~#d1~0.base|) (= |old(~#d1~0.offset)| |~#d1~0.offset|) (= |old(#length)| |#length|)) [2020-07-17 22:30:08,287 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:30:08,287 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2020-07-17 22:30:08,287 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2020-07-17 22:30:08,287 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-07-17 22:30:08,288 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2020-07-17 22:30:08,288 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:30:08,288 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:30:08,288 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:30:08,288 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:30:08,288 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-07-17 22:30:08,288 INFO L268 CegarLoopResult]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2020-07-17 22:30:08,289 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-07-17 22:30:08,289 INFO L271 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: true [2020-07-17 22:30:08,289 INFO L268 CegarLoopResult]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2020-07-17 22:30:08,289 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-07-17 22:30:08,289 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-07-17 22:30:08,289 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 30 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-07-17 22:30:08,289 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2020-07-17 22:30:08,290 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2020-07-17 22:30:08,290 INFO L264 CegarLoopResult]: At program point L36(lines 31 44) the Hoare annotation is: false [2020-07-17 22:30:08,290 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-07-17 22:30:08,290 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-07-17 22:30:08,290 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-07-17 22:30:08,290 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2020-07-17 22:30:08,290 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2020-07-17 22:30:08,290 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2020-07-17 22:30:08,295 WARN L170 areAnnotationChecker]: initFINAL has no Hoare annotation [2020-07-17 22:30:08,295 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:30:08,297 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-17 22:30:08,298 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-17 22:30:08,298 WARN L170 areAnnotationChecker]: checkFINAL has no Hoare annotation [2020-07-17 22:30:08,299 WARN L170 areAnnotationChecker]: initFINAL has no Hoare annotation [2020-07-17 22:30:08,299 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:30:08,299 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:30:08,299 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: checkFINAL has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: initEXIT has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: get_dummyFINAL has no Hoare annotation [2020-07-17 22:30:08,300 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: checkEXIT has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: get_dummyEXIT has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: get_dummyEXIT has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-17 22:30:08,301 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-17 22:30:08,302 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:30:08,302 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:30:08,302 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-17 22:30:08,302 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:30:08,302 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-17 22:30:08,302 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2020-07-17 22:30:08,303 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:30:08,303 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:30:08,303 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:30:08,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:30:08 BoogieIcfgContainer [2020-07-17 22:30:08,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:30:08,315 INFO L168 Benchmark]: Toolchain (without parser) took 4363.00 ms. Allocated memory was 136.8 MB in the beginning and 251.1 MB in the end (delta: 114.3 MB). Free memory was 100.0 MB in the beginning and 114.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:08,317 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:30:08,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.14 ms. Allocated memory is still 136.8 MB. Free memory was 99.5 MB in the beginning and 88.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:08,321 INFO L168 Benchmark]: Boogie Preprocessor took 124.89 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 88.9 MB in the beginning and 177.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:08,322 INFO L168 Benchmark]: RCFGBuilder took 504.06 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 153.5 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:08,323 INFO L168 Benchmark]: TraceAbstraction took 3451.91 ms. Allocated memory was 199.8 MB in the beginning and 251.1 MB in the end (delta: 51.4 MB). Free memory was 152.8 MB in the beginning and 114.8 MB in the end (delta: 38.0 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:30:08,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.14 ms. Allocated memory is still 136.8 MB. Free memory was 99.5 MB in the beginning and 88.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.89 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 88.9 MB in the beginning and 177.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.06 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 153.5 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3451.91 ms. Allocated memory was 199.8 MB in the beginning and 251.1 MB in the end (delta: 51.4 MB). Free memory was 152.8 MB in the beginning and 114.8 MB in the end (delta: 38.0 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 45 SDslu, 55 SDs, 0 SdLazy, 244 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 70 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 179 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 4088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...