/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 19:01:56,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 19:01:56,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 19:01:56,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 19:01:56,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 19:01:56,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 19:01:56,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 19:01:56,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 19:01:56,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 19:01:56,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 19:01:56,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 19:01:56,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 19:01:56,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 19:01:56,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 19:01:56,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 19:01:56,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 19:01:56,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 19:01:56,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 19:01:56,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 19:01:56,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 19:01:56,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 19:01:56,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 19:01:56,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 19:01:56,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 19:01:56,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 19:01:56,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 19:01:56,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 19:01:56,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 19:01:56,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 19:01:56,887 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 19:01:56,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 19:01:56,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 19:01:56,894 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 19:01:56,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 19:01:56,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 19:01:56,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 19:01:56,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 19:01:56,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 19:01:56,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 19:01:56,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 19:01:56,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 19:01:56,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 19:01:56,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 19:01:56,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 19:01:56,897 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 19:01:56,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 19:01:56,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 19:01:56,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:01:56,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 19:01:56,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 19:01:56,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 19:01:56,899 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 19:01:57,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 19:01:57,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 19:01:57,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 19:01:57,173 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 19:01:57,173 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 19:01:57,174 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test06.c [2020-07-10 19:01:57,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97762534f/5af00d00b2cb4f3088f2a5559a0345bb/FLAG2583d2e62 [2020-07-10 19:01:57,692 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 19:01:57,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test06.c [2020-07-10 19:01:57,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97762534f/5af00d00b2cb4f3088f2a5559a0345bb/FLAG2583d2e62 [2020-07-10 19:01:58,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97762534f/5af00d00b2cb4f3088f2a5559a0345bb [2020-07-10 19:01:58,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 19:01:58,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 19:01:58,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 19:01:58,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 19:01:58,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 19:01:58,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5952304e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58, skipping insertion in model container [2020-07-10 19:01:58,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 19:01:58,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 19:01:58,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:01:58,358 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 19:01:58,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:01:58,393 INFO L208 MainTranslator]: Completed translation [2020-07-10 19:01:58,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58 WrapperNode [2020-07-10 19:01:58,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 19:01:58,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 19:01:58,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 19:01:58,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 19:01:58,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... [2020-07-10 19:01:58,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 19:01:58,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 19:01:58,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 19:01:58,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 19:01:58,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:01:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 19:01:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 19:01:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-10 19:01:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-10 19:01:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-10 19:01:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 19:01:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 19:01:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 19:01:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 19:01:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 19:01:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 19:01:59,042 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 19:01:59,042 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 19:01:59,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:01:59 BoogieIcfgContainer [2020-07-10 19:01:59,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 19:01:59,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 19:01:59,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 19:01:59,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 19:01:59,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 07:01:58" (1/3) ... [2020-07-10 19:01:59,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dee5c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:01:59, skipping insertion in model container [2020-07-10 19:01:59,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:01:58" (2/3) ... [2020-07-10 19:01:59,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dee5c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:01:59, skipping insertion in model container [2020-07-10 19:01:59,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:01:59" (3/3) ... [2020-07-10 19:01:59,055 INFO L109 eAbstractionObserver]: Analyzing ICFG test06.c [2020-07-10 19:01:59,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 19:01:59,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 19:01:59,087 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 19:01:59,109 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 19:01:59,109 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 19:01:59,109 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 19:01:59,109 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 19:01:59,109 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 19:01:59,110 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 19:01:59,110 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 19:01:59,110 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 19:01:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-07-10 19:01:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-10 19:01:59,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:01:59,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:01:59,139 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:01:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:01:59,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1600319067, now seen corresponding path program 1 times [2020-07-10 19:01:59,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:01:59,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332355215] [2020-07-10 19:01:59,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:01:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:01:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:01:59,591 INFO L280 TraceCheckUtils]: 0: Hoare triple {99#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {80#true} is VALID [2020-07-10 19:01:59,592 INFO L280 TraceCheckUtils]: 1: Hoare triple {80#true} #valid := #valid[0 := 0]; {80#true} is VALID [2020-07-10 19:01:59,592 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} assume 0 < #StackHeapBarrier; {80#true} is VALID [2020-07-10 19:01:59,592 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} assume true; {80#true} is VALID [2020-07-10 19:01:59,593 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {80#true} {80#true} #82#return; {80#true} is VALID [2020-07-10 19:01:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:01:59,711 INFO L280 TraceCheckUtils]: 0: Hoare triple {100#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~a := #in~a; {101#(= |f_#in~a| f_~a)} is VALID [2020-07-10 19:01:59,712 INFO L280 TraceCheckUtils]: 1: Hoare triple {101#(= |f_#in~a| f_~a)} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {101#(= |f_#in~a| f_~a)} is VALID [2020-07-10 19:01:59,713 INFO L280 TraceCheckUtils]: 2: Hoare triple {101#(= |f_#in~a| f_~a)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {101#(= |f_#in~a| f_~a)} is VALID [2020-07-10 19:01:59,717 INFO L280 TraceCheckUtils]: 3: Hoare triple {101#(= |f_#in~a| f_~a)} assume !(4 == ~a); {102#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 19:01:59,718 INFO L280 TraceCheckUtils]: 4: Hoare triple {102#(not (= 4 |f_#in~a|))} #res := 0; {102#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 19:01:59,720 INFO L280 TraceCheckUtils]: 5: Hoare triple {102#(not (= 4 |f_#in~a|))} assume true; {102#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 19:01:59,723 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {102#(not (= 4 |f_#in~a|))} {91#(= 4 |main_#t~mem4|)} #86#return; {81#false} is VALID [2020-07-10 19:01:59,726 INFO L263 TraceCheckUtils]: 0: Hoare triple {80#true} call ULTIMATE.init(); {99#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:01:59,727 INFO L280 TraceCheckUtils]: 1: Hoare triple {99#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {80#true} is VALID [2020-07-10 19:01:59,727 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} #valid := #valid[0 := 0]; {80#true} is VALID [2020-07-10 19:01:59,728 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} assume 0 < #StackHeapBarrier; {80#true} is VALID [2020-07-10 19:01:59,728 INFO L280 TraceCheckUtils]: 4: Hoare triple {80#true} assume true; {80#true} is VALID [2020-07-10 19:01:59,732 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {80#true} {80#true} #82#return; {80#true} is VALID [2020-07-10 19:01:59,732 INFO L263 TraceCheckUtils]: 6: Hoare triple {80#true} call #t~ret8 := main(); {80#true} is VALID [2020-07-10 19:01:59,733 INFO L280 TraceCheckUtils]: 7: Hoare triple {80#true} SUMMARY for call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4); srcloc: mainENTRY {80#true} is VALID [2020-07-10 19:01:59,733 INFO L280 TraceCheckUtils]: 8: Hoare triple {80#true} SUMMARY for call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); srcloc: L21 {80#true} is VALID [2020-07-10 19:01:59,734 INFO L280 TraceCheckUtils]: 9: Hoare triple {80#true} SUMMARY for call ~#p1~0.base, ~#p1~0.offset := #Ultimate.allocOnStack(4); srcloc: L21-1 {80#true} is VALID [2020-07-10 19:01:59,734 INFO L280 TraceCheckUtils]: 10: Hoare triple {80#true} SUMMARY for call ~#p2~0.base, ~#p2~0.offset := #Ultimate.allocOnStack(4); srcloc: L22 {80#true} is VALID [2020-07-10 19:01:59,735 INFO L280 TraceCheckUtils]: 11: Hoare triple {80#true} SUMMARY for call write~$Pointer$(~#a~0.base, ~#a~0.offset, ~#p1~0.base, ~#p1~0.offset, 4); srcloc: L22-1 {80#true} is VALID [2020-07-10 19:01:59,735 INFO L280 TraceCheckUtils]: 12: Hoare triple {80#true} SUMMARY for call write~$Pointer$(~#b~0.base, ~#b~0.offset, ~#p2~0.base, ~#p2~0.offset, 4); srcloc: L24 {80#true} is VALID [2020-07-10 19:01:59,735 INFO L280 TraceCheckUtils]: 13: Hoare triple {80#true} SUMMARY for call write~int(1, ~#b~0.base, ~#b~0.offset, 4); srcloc: L25 {80#true} is VALID [2020-07-10 19:01:59,738 INFO L280 TraceCheckUtils]: 14: Hoare triple {80#true} SUMMARY for call write~int(5, ~#a~0.base, ~#a~0.offset, 4); srcloc: L27 {87#(= 5 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-10 19:01:59,739 INFO L280 TraceCheckUtils]: 15: Hoare triple {87#(= 5 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} SUMMARY for call #t~mem2 := read~int(~#a~0.base, ~#a~0.offset, 4); srcloc: L28 {88#(= 5 |main_#t~mem2|)} is VALID [2020-07-10 19:01:59,740 INFO L280 TraceCheckUtils]: 16: Hoare triple {88#(= 5 |main_#t~mem2|)} #t~post3 := #t~mem2; {89#(= 5 |main_#t~post3|)} is VALID [2020-07-10 19:01:59,742 INFO L280 TraceCheckUtils]: 17: Hoare triple {89#(= 5 |main_#t~post3|)} SUMMARY for call write~int(#t~post3 - 1, ~#a~0.base, ~#a~0.offset, 4); srcloc: L30-1 {90#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-10 19:01:59,743 INFO L280 TraceCheckUtils]: 18: Hoare triple {90#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} havoc #t~post3; {90#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-10 19:01:59,744 INFO L280 TraceCheckUtils]: 19: Hoare triple {90#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} havoc #t~mem2; {90#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-10 19:01:59,748 INFO L280 TraceCheckUtils]: 20: Hoare triple {90#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} SUMMARY for call #t~mem4 := read~int(~#a~0.base, ~#a~0.offset, 4); srcloc: L32 {91#(= 4 |main_#t~mem4|)} is VALID [2020-07-10 19:01:59,751 INFO L263 TraceCheckUtils]: 21: Hoare triple {91#(= 4 |main_#t~mem4|)} call #t~ret5 := f(#t~mem4, ~#p1~0.base, ~#p1~0.offset, ~#p2~0.base, ~#p2~0.offset); {100#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 19:01:59,753 INFO L280 TraceCheckUtils]: 22: Hoare triple {100#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~a := #in~a; {101#(= |f_#in~a| f_~a)} is VALID [2020-07-10 19:01:59,754 INFO L280 TraceCheckUtils]: 23: Hoare triple {101#(= |f_#in~a| f_~a)} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {101#(= |f_#in~a| f_~a)} is VALID [2020-07-10 19:01:59,755 INFO L280 TraceCheckUtils]: 24: Hoare triple {101#(= |f_#in~a| f_~a)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {101#(= |f_#in~a| f_~a)} is VALID [2020-07-10 19:01:59,756 INFO L280 TraceCheckUtils]: 25: Hoare triple {101#(= |f_#in~a| f_~a)} assume !(4 == ~a); {102#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 19:01:59,757 INFO L280 TraceCheckUtils]: 26: Hoare triple {102#(not (= 4 |f_#in~a|))} #res := 0; {102#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 19:01:59,758 INFO L280 TraceCheckUtils]: 27: Hoare triple {102#(not (= 4 |f_#in~a|))} assume true; {102#(not (= 4 |f_#in~a|))} is VALID [2020-07-10 19:01:59,760 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {102#(not (= 4 |f_#in~a|))} {91#(= 4 |main_#t~mem4|)} #86#return; {81#false} is VALID [2020-07-10 19:01:59,761 INFO L280 TraceCheckUtils]: 29: Hoare triple {81#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {81#false} is VALID [2020-07-10 19:01:59,761 INFO L280 TraceCheckUtils]: 30: Hoare triple {81#false} SUMMARY for call write~int(#t~ret5, ~#a~0.base, ~#a~0.offset, 4); srcloc: L32-3 {81#false} is VALID [2020-07-10 19:01:59,762 INFO L280 TraceCheckUtils]: 31: Hoare triple {81#false} havoc #t~ret5; {81#false} is VALID [2020-07-10 19:01:59,762 INFO L280 TraceCheckUtils]: 32: Hoare triple {81#false} havoc #t~mem4; {81#false} is VALID [2020-07-10 19:01:59,762 INFO L280 TraceCheckUtils]: 33: Hoare triple {81#false} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#p1~0.base, ~#p1~0.offset, 4); srcloc: L34 {81#false} is VALID [2020-07-10 19:01:59,763 INFO L280 TraceCheckUtils]: 34: Hoare triple {81#false} SUMMARY for call #t~mem7 := read~int(#t~mem6.base, #t~mem6.offset, 4); srcloc: L34-1 {81#false} is VALID [2020-07-10 19:01:59,763 INFO L280 TraceCheckUtils]: 35: Hoare triple {81#false} assume 0 == #t~mem7; {81#false} is VALID [2020-07-10 19:01:59,764 INFO L280 TraceCheckUtils]: 36: Hoare triple {81#false} havoc #t~mem7; {81#false} is VALID [2020-07-10 19:01:59,764 INFO L280 TraceCheckUtils]: 37: Hoare triple {81#false} havoc #t~mem6.base, #t~mem6.offset; {81#false} is VALID [2020-07-10 19:01:59,768 INFO L280 TraceCheckUtils]: 38: Hoare triple {81#false} assume !false; {81#false} is VALID [2020-07-10 19:01:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:01:59,781 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:01:59,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332355215] [2020-07-10 19:01:59,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:01:59,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-10 19:01:59,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267185792] [2020-07-10 19:01:59,796 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-10 19:01:59,801 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:01:59,805 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 19:01:59,881 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:01:59,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 19:01:59,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:01:59,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 19:01:59,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-07-10 19:01:59,894 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 11 states. [2020-07-10 19:02:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:02:01,452 INFO L93 Difference]: Finished difference Result 105 states and 106 transitions. [2020-07-10 19:02:01,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-10 19:02:01,452 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-10 19:02:01,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:02:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 19:02:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 106 transitions. [2020-07-10 19:02:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 19:02:01,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 106 transitions. [2020-07-10 19:02:01,479 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 106 transitions. [2020-07-10 19:02:01,635 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:02:01,656 INFO L225 Difference]: With dead ends: 105 [2020-07-10 19:02:01,657 INFO L226 Difference]: Without dead ends: 52 [2020-07-10 19:02:01,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-07-10 19:02:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-10 19:02:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-07-10 19:02:01,797 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:02:01,798 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 52 states. [2020-07-10 19:02:01,798 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-10 19:02:01,799 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-10 19:02:01,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:02:01,804 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2020-07-10 19:02:01,804 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2020-07-10 19:02:01,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:02:01,805 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:02:01,805 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-10 19:02:01,805 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-10 19:02:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:02:01,811 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2020-07-10 19:02:01,811 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2020-07-10 19:02:01,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:02:01,812 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:02:01,812 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:02:01,812 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:02:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-10 19:02:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2020-07-10 19:02:01,817 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 39 [2020-07-10 19:02:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:02:01,818 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2020-07-10 19:02:01,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 19:02:01,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 51 transitions. [2020-07-10 19:02:01,893 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:02:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2020-07-10 19:02:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-10 19:02:01,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:02:01,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:02:01,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 19:02:01,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:02:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:02:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2059010026, now seen corresponding path program 1 times [2020-07-10 19:02:01,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:02:01,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630686689] [2020-07-10 19:02:01,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:02:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:02:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:02:02,163 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:02:02,164 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 19:02:02,164 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 19:02:02,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 19:02:02,182 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 19:02:02,182 WARN L170 areAnnotationChecker]: fENTRY has no Hoare annotation [2020-07-10 19:02:02,183 WARN L170 areAnnotationChecker]: gENTRY has no Hoare annotation [2020-07-10 19:02:02,183 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:02:02,183 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:02:02,183 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 19:02:02,183 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:02:02,183 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 19:02:02,184 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: L5-1 has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 19:02:02,185 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: L5-2 has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 19:02:02,186 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-10 19:02:02,187 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: L32-3 has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: L32-4 has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: gFINAL has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-10 19:02:02,188 WARN L170 areAnnotationChecker]: L32-5 has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: gEXIT has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 19:02:02,189 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L34-5 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L34-4 has no Hoare annotation [2020-07-10 19:02:02,190 WARN L170 areAnnotationChecker]: L34-6 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L21-6 has no Hoare annotation [2020-07-10 19:02:02,191 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L21-7 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L21-4 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L21-8 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L21-5 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L21-9 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-10 19:02:02,192 WARN L170 areAnnotationChecker]: L22-6 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: L22-7 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: L22-4 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: L22-8 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: L22-5 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: L22-9 has no Hoare annotation [2020-07-10 19:02:02,193 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 19:02:02,194 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 19:02:02,194 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 19:02:02,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 07:02:02 BoogieIcfgContainer [2020-07-10 19:02:02,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 19:02:02,201 INFO L168 Benchmark]: Toolchain (without parser) took 4119.67 ms. Allocated memory was 146.3 MB in the beginning and 244.8 MB in the end (delta: 98.6 MB). Free memory was 103.2 MB in the beginning and 157.5 MB in the end (delta: -54.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2020-07-10 19:02:02,202 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 19:02:02,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.90 ms. Allocated memory is still 146.3 MB. Free memory was 103.0 MB in the beginning and 92.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-10 19:02:02,204 INFO L168 Benchmark]: Boogie Preprocessor took 123.70 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 181.1 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-10 19:02:02,204 INFO L168 Benchmark]: RCFGBuilder took 528.97 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 146.2 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-10 19:02:02,205 INFO L168 Benchmark]: TraceAbstraction took 3149.34 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 146.2 MB in the beginning and 157.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-07-10 19:02:02,209 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 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.90 ms. Allocated memory is still 146.3 MB. Free memory was 103.0 MB in the beginning and 92.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.70 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 181.1 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 528.97 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 146.2 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3149.34 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 146.2 MB in the beginning and 157.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 40]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int a, b; [L22] int *p1, *p2; [L24] p1 = &a [L25] p2 = &b [L27] b = 1 [L28] a = 5 [L30] EXPR \read(a) [L30] a-- [L32] EXPR \read(a) [L32] CALL, EXPR f(a, &p1, &p2) [L12] COND TRUE a == 4 [L13] CALL g(p1, p2) [L5] EXPR \read(**p2) [L5] int *pq = *p2; [L7] EXPR \read(**p2) [L7] *p1 = *p2 [L8] *pq = 0 [L13] RET g(p1, p2) [L14] return 1; [L32] RET, EXPR f(a, &p1, &p2) [L32] a = f(a, &p1, &p2) [L34] EXPR \read(*p1) [L34] COND TRUE *p1 == 0 [L40] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 52 SDslu, 262 SDs, 0 SdLazy, 287 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 incorrect! Received shutdown request...