/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/array-fpi/res1of.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 17:36:30,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 17:36:30,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 17:36:30,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 17:36:30,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 17:36:30,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 17:36:30,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 17:36:30,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 17:36:30,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 17:36:30,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 17:36:30,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 17:36:30,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 17:36:30,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 17:36:30,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 17:36:30,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 17:36:30,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 17:36:30,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 17:36:31,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 17:36:31,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 17:36:31,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 17:36:31,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 17:36:31,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 17:36:31,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 17:36:31,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 17:36:31,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 17:36:31,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 17:36:31,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 17:36:31,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 17:36:31,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 17:36:31,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 17:36:31,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 17:36:31,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 17:36:31,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 17:36:31,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 17:36:31,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 17:36:31,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 17:36:31,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 17:36:31,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 17:36:31,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 17:36:31,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 17:36:31,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 17:36:31,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 17:36:31,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 17:36:31,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 17:36:31,076 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 17:36:31,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 17:36:31,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 17:36:31,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:36:31,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 17:36:31,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 17:36:31,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 17:36:31,077 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 17:36:31,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 17:36:31,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 17:36:31,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 17:36:31,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 17:36:31,367 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 17:36:31,368 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1of.c [2020-07-08 17:36:31,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842740d04/361ed6edeb114197b84eb47f31215101/FLAG349316716 [2020-07-08 17:36:31,889 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 17:36:31,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res1of.c [2020-07-08 17:36:31,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842740d04/361ed6edeb114197b84eb47f31215101/FLAG349316716 [2020-07-08 17:36:32,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842740d04/361ed6edeb114197b84eb47f31215101 [2020-07-08 17:36:32,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 17:36:32,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 17:36:32,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 17:36:32,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 17:36:32,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 17:36:32,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660ab6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32, skipping insertion in model container [2020-07-08 17:36:32,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 17:36:32,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 17:36:32,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:36:32,644 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 17:36:32,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:36:32,693 INFO L208 MainTranslator]: Completed translation [2020-07-08 17:36:32,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32 WrapperNode [2020-07-08 17:36:32,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 17:36:32,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 17:36:32,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 17:36:32,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 17:36:32,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (1/1) ... [2020-07-08 17:36:32,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 17:36:32,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 17:36:32,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 17:36:32,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 17:36:32,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (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 [2020-07-08 17:36:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 17:36:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 17:36:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 17:36:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 17:36:32,958 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 17:36:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 17:36:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 17:36:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 17:36:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 17:36:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 17:36:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 17:36:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 17:36:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 17:36:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 17:36:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 17:36:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 17:36:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 17:36:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 17:36:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 17:36:33,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 17:36:33,451 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-08 17:36:33,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:36:33 BoogieIcfgContainer [2020-07-08 17:36:33,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 17:36:33,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 17:36:33,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 17:36:33,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 17:36:33,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 05:36:32" (1/3) ... [2020-07-08 17:36:33,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d5dc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:36:33, skipping insertion in model container [2020-07-08 17:36:33,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:36:32" (2/3) ... [2020-07-08 17:36:33,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d5dc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:36:33, skipping insertion in model container [2020-07-08 17:36:33,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:36:33" (3/3) ... [2020-07-08 17:36:33,465 INFO L109 eAbstractionObserver]: Analyzing ICFG res1of.c [2020-07-08 17:36:33,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 17:36:33,485 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 17:36:33,500 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 17:36:33,524 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 17:36:33,525 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 17:36:33,525 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 17:36:33,525 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 17:36:33,526 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 17:36:33,526 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 17:36:33,526 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 17:36:33,526 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 17:36:33,543 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-08 17:36:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-08 17:36:33,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:36:33,561 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] [2020-07-08 17:36:33,562 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:36:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:36:33,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1485233439, now seen corresponding path program 1 times [2020-07-08 17:36:33,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:36:33,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897980399] [2020-07-08 17:36:33,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:36:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:33,865 INFO L280 TraceCheckUtils]: 0: Hoare triple {89#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {77#true} is VALID [2020-07-08 17:36:33,866 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} #valid := #valid[0 := 0]; {77#true} is VALID [2020-07-08 17:36:33,866 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} assume 0 < #StackHeapBarrier; {77#true} is VALID [2020-07-08 17:36:33,867 INFO L280 TraceCheckUtils]: 3: Hoare triple {77#true} ~N~0 := 0; {77#true} is VALID [2020-07-08 17:36:33,867 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:33,868 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {77#true} {77#true} #132#return; {77#true} is VALID [2020-07-08 17:36:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:33,877 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} ~cond := #in~cond; {77#true} is VALID [2020-07-08 17:36:33,878 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume !(0 == ~cond); {77#true} is VALID [2020-07-08 17:36:33,879 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:33,879 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {77#true} {77#true} #128#return; {77#true} is VALID [2020-07-08 17:36:33,881 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {89#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 17:36:33,882 INFO L280 TraceCheckUtils]: 1: Hoare triple {89#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {77#true} is VALID [2020-07-08 17:36:33,882 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} #valid := #valid[0 := 0]; {77#true} is VALID [2020-07-08 17:36:33,882 INFO L280 TraceCheckUtils]: 3: Hoare triple {77#true} assume 0 < #StackHeapBarrier; {77#true} is VALID [2020-07-08 17:36:33,883 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} ~N~0 := 0; {77#true} is VALID [2020-07-08 17:36:33,883 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:33,884 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {77#true} {77#true} #132#return; {77#true} is VALID [2020-07-08 17:36:33,884 INFO L263 TraceCheckUtils]: 7: Hoare triple {77#true} call #t~ret12 := main(); {77#true} is VALID [2020-07-08 17:36:33,884 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-08 17:36:33,885 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~N~0 := #t~nondet0; {77#true} is VALID [2020-07-08 17:36:33,885 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-08 17:36:33,886 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~N~0 <= 0); {77#true} is VALID [2020-07-08 17:36:33,886 INFO L263 TraceCheckUtils]: 12: Hoare triple {77#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {77#true} is VALID [2020-07-08 17:36:33,887 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~cond := #in~cond; {77#true} is VALID [2020-07-08 17:36:33,887 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} assume !(0 == ~cond); {77#true} is VALID [2020-07-08 17:36:33,887 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:36:33,888 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {77#true} {77#true} #128#return; {77#true} is VALID [2020-07-08 17:36:33,888 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-08 17:36:33,889 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L26 {77#true} is VALID [2020-07-08 17:36:33,889 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L26-1 {77#true} is VALID [2020-07-08 17:36:33,889 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {77#true} is VALID [2020-07-08 17:36:33,890 INFO L280 TraceCheckUtils]: 21: Hoare triple {77#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L28 {77#true} is VALID [2020-07-08 17:36:33,890 INFO L280 TraceCheckUtils]: 22: Hoare triple {77#true} ~b~0.base, ~b~0.offset := #t~malloc2.base, #t~malloc2.offset; {77#true} is VALID [2020-07-08 17:36:33,891 INFO L280 TraceCheckUtils]: 23: Hoare triple {77#true} SUMMARY for call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L30 {77#true} is VALID [2020-07-08 17:36:33,891 INFO L280 TraceCheckUtils]: 24: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-08 17:36:33,893 INFO L280 TraceCheckUtils]: 25: Hoare triple {77#true} assume !true; {78#false} is VALID [2020-07-08 17:36:33,893 INFO L280 TraceCheckUtils]: 26: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-08 17:36:33,895 INFO L280 TraceCheckUtils]: 27: Hoare triple {78#false} assume !(~i~0 < ~N~0); {78#false} is VALID [2020-07-08 17:36:33,895 INFO L280 TraceCheckUtils]: 28: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-08 17:36:33,896 INFO L280 TraceCheckUtils]: 29: Hoare triple {78#false} assume !(~i~0 < ~N~0); {78#false} is VALID [2020-07-08 17:36:33,896 INFO L280 TraceCheckUtils]: 30: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-08 17:36:33,897 INFO L280 TraceCheckUtils]: 31: Hoare triple {78#false} assume !true; {78#false} is VALID [2020-07-08 17:36:33,897 INFO L280 TraceCheckUtils]: 32: Hoare triple {78#false} SUMMARY for call #t~mem11 := read~int(~#sum~0.base, ~#sum~0.offset, 8); srcloc: L46-6 {78#false} is VALID [2020-07-08 17:36:33,898 INFO L263 TraceCheckUtils]: 33: Hoare triple {78#false} call __VERIFIER_assert((if #t~mem11 <= ~N~0 then 1 else 0)); {78#false} is VALID [2020-07-08 17:36:33,898 INFO L280 TraceCheckUtils]: 34: Hoare triple {78#false} ~cond := #in~cond; {78#false} is VALID [2020-07-08 17:36:33,899 INFO L280 TraceCheckUtils]: 35: Hoare triple {78#false} assume 0 == ~cond; {78#false} is VALID [2020-07-08 17:36:33,899 INFO L280 TraceCheckUtils]: 36: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-08 17:36:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:36:33,905 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:36:33,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897980399] [2020-07-08 17:36:33,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:36:33,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 17:36:33,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971525266] [2020-07-08 17:36:33,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-08 17:36:33,923 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:36:33,928 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 17:36:33,990 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:33,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 17:36:33,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:36:33,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 17:36:34,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 17:36:34,003 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-07-08 17:36:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:34,456 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2020-07-08 17:36:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 17:36:34,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-08 17:36:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:36:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 17:36:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2020-07-08 17:36:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 17:36:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2020-07-08 17:36:34,477 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 150 transitions. [2020-07-08 17:36:34,656 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:34,670 INFO L225 Difference]: With dead ends: 131 [2020-07-08 17:36:34,670 INFO L226 Difference]: Without dead ends: 62 [2020-07-08 17:36:34,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 17:36:34,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-08 17:36:34,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-07-08 17:36:34,769 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:36:34,769 INFO L82 GeneralOperation]: Start isEquivalent. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:34,770 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:34,770 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:34,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:34,777 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-07-08 17:36:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-08 17:36:34,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:34,778 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:34,779 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:34,779 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 62 states. [2020-07-08 17:36:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:34,785 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-07-08 17:36:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-08 17:36:34,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:34,786 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:34,787 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:36:34,787 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:36:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-08 17:36:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-07-08 17:36:34,793 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 37 [2020-07-08 17:36:34,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:36:34,793 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-07-08 17:36:34,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 17:36:34,794 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 62 states and 65 transitions. [2020-07-08 17:36:34,875 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-08 17:36:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-08 17:36:34,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:36:34,877 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] [2020-07-08 17:36:34,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 17:36:34,877 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:36:34,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:36:34,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1275810423, now seen corresponding path program 1 times [2020-07-08 17:36:34,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:36:34,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080699099] [2020-07-08 17:36:34,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:36:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:35,035 INFO L280 TraceCheckUtils]: 0: Hoare triple {616#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {602#true} is VALID [2020-07-08 17:36:35,036 INFO L280 TraceCheckUtils]: 1: Hoare triple {602#true} #valid := #valid[0 := 0]; {602#true} is VALID [2020-07-08 17:36:35,038 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} assume 0 < #StackHeapBarrier; {602#true} is VALID [2020-07-08 17:36:35,039 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#true} ~N~0 := 0; {602#true} is VALID [2020-07-08 17:36:35,039 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:35,043 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {602#true} {602#true} #132#return; {602#true} is VALID [2020-07-08 17:36:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:36:35,062 INFO L280 TraceCheckUtils]: 0: Hoare triple {602#true} ~cond := #in~cond; {602#true} is VALID [2020-07-08 17:36:35,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {602#true} assume !(0 == ~cond); {602#true} is VALID [2020-07-08 17:36:35,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:35,064 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {602#true} {610#(<= 1 ~N~0)} #128#return; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,066 INFO L263 TraceCheckUtils]: 0: Hoare triple {602#true} call ULTIMATE.init(); {616#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 17:36:35,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {616#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {602#true} is VALID [2020-07-08 17:36:35,067 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} #valid := #valid[0 := 0]; {602#true} is VALID [2020-07-08 17:36:35,067 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#true} assume 0 < #StackHeapBarrier; {602#true} is VALID [2020-07-08 17:36:35,067 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#true} ~N~0 := 0; {602#true} is VALID [2020-07-08 17:36:35,068 INFO L280 TraceCheckUtils]: 5: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:35,068 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {602#true} {602#true} #132#return; {602#true} is VALID [2020-07-08 17:36:35,068 INFO L263 TraceCheckUtils]: 7: Hoare triple {602#true} call #t~ret12 := main(); {602#true} is VALID [2020-07-08 17:36:35,069 INFO L280 TraceCheckUtils]: 8: Hoare triple {602#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {602#true} is VALID [2020-07-08 17:36:35,071 INFO L280 TraceCheckUtils]: 9: Hoare triple {602#true} ~N~0 := #t~nondet0; {602#true} is VALID [2020-07-08 17:36:35,071 INFO L280 TraceCheckUtils]: 10: Hoare triple {602#true} havoc #t~nondet0; {602#true} is VALID [2020-07-08 17:36:35,072 INFO L280 TraceCheckUtils]: 11: Hoare triple {602#true} assume !(~N~0 <= 0); {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,073 INFO L263 TraceCheckUtils]: 12: Hoare triple {610#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {602#true} is VALID [2020-07-08 17:36:35,073 INFO L280 TraceCheckUtils]: 13: Hoare triple {602#true} ~cond := #in~cond; {602#true} is VALID [2020-07-08 17:36:35,073 INFO L280 TraceCheckUtils]: 14: Hoare triple {602#true} assume !(0 == ~cond); {602#true} is VALID [2020-07-08 17:36:35,074 INFO L280 TraceCheckUtils]: 15: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-08 17:36:35,075 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {602#true} {610#(<= 1 ~N~0)} #128#return; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,077 INFO L280 TraceCheckUtils]: 17: Hoare triple {610#(<= 1 ~N~0)} havoc ~i~0; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,077 INFO L280 TraceCheckUtils]: 18: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L26 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,078 INFO L280 TraceCheckUtils]: 19: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L26-1 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,079 INFO L280 TraceCheckUtils]: 20: Hoare triple {610#(<= 1 ~N~0)} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,080 INFO L280 TraceCheckUtils]: 21: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4 * ~N~0); srcloc: L28 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,081 INFO L280 TraceCheckUtils]: 22: Hoare triple {610#(<= 1 ~N~0)} ~b~0.base, ~b~0.offset := #t~malloc2.base, #t~malloc2.offset; {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,081 INFO L280 TraceCheckUtils]: 23: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L30 {610#(<= 1 ~N~0)} is VALID [2020-07-08 17:36:35,082 INFO L280 TraceCheckUtils]: 24: Hoare triple {610#(<= 1 ~N~0)} ~i~0 := 0; {615#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-08 17:36:35,084 INFO L280 TraceCheckUtils]: 25: Hoare triple {615#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:35,084 INFO L280 TraceCheckUtils]: 26: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-08 17:36:35,084 INFO L280 TraceCheckUtils]: 27: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:35,085 INFO L280 TraceCheckUtils]: 28: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-08 17:36:35,085 INFO L280 TraceCheckUtils]: 29: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:35,085 INFO L280 TraceCheckUtils]: 30: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-08 17:36:35,086 INFO L280 TraceCheckUtils]: 31: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-08 17:36:35,086 INFO L280 TraceCheckUtils]: 32: Hoare triple {603#false} SUMMARY for call #t~mem11 := read~int(~#sum~0.base, ~#sum~0.offset, 8); srcloc: L46-6 {603#false} is VALID [2020-07-08 17:36:35,087 INFO L263 TraceCheckUtils]: 33: Hoare triple {603#false} call __VERIFIER_assert((if #t~mem11 <= ~N~0 then 1 else 0)); {603#false} is VALID [2020-07-08 17:36:35,087 INFO L280 TraceCheckUtils]: 34: Hoare triple {603#false} ~cond := #in~cond; {603#false} is VALID [2020-07-08 17:36:35,087 INFO L280 TraceCheckUtils]: 35: Hoare triple {603#false} assume 0 == ~cond; {603#false} is VALID [2020-07-08 17:36:35,088 INFO L280 TraceCheckUtils]: 36: Hoare triple {603#false} assume !false; {603#false} is VALID [2020-07-08 17:36:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:36:35,091 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:36:35,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080699099] [2020-07-08 17:36:35,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:36:35,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:36:35,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948341765] [2020-07-08 17:36:35,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-08 17:36:35,096 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:36:35,096 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:36:35,146 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:35,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:36:35,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:36:35,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:36:35,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:36:35,148 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 5 states. [2020-07-08 17:36:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:35,795 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2020-07-08 17:36:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:36:35,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-08 17:36:35,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:36:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:36:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-08 17:36:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:36:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-08 17:36:35,804 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-08 17:36:35,948 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:35,953 INFO L225 Difference]: With dead ends: 118 [2020-07-08 17:36:35,953 INFO L226 Difference]: Without dead ends: 86 [2020-07-08 17:36:35,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:36:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-08 17:36:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2020-07-08 17:36:36,070 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:36:36,070 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand 66 states. [2020-07-08 17:36:36,070 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 66 states. [2020-07-08 17:36:36,070 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 66 states. [2020-07-08 17:36:36,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:36,075 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-07-08 17:36:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-07-08 17:36:36,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:36,077 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:36,077 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 86 states. [2020-07-08 17:36:36,077 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 86 states. [2020-07-08 17:36:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:36:36,082 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-07-08 17:36:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-07-08 17:36:36,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:36:36,083 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:36:36,083 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:36:36,084 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:36:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-08 17:36:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-07-08 17:36:36,087 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 37 [2020-07-08 17:36:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:36:36,088 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-07-08 17:36:36,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:36:36,101 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 66 states and 69 transitions. [2020-07-08 17:36:36,190 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:36:36,191 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-07-08 17:36:36,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-08 17:36:36,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:36:36,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:36:36,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 17:36:36,195 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:36:36,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:36:36,195 INFO L82 PathProgramCache]: Analyzing trace with hash 499886001, now seen corresponding path program 1 times [2020-07-08 17:36:36,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:36:36,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655782490] [2020-07-08 17:36:36,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:36:36,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 17:36:36,221 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:277) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 17:36:36,227 INFO L168 Benchmark]: Toolchain (without parser) took 3906.00 ms. Allocated memory was 146.3 MB in the beginning and 244.3 MB in the end (delta: 98.0 MB). Free memory was 102.7 MB in the beginning and 200.1 MB in the end (delta: -97.4 MB). Peak memory consumption was 627.6 kB. Max. memory is 7.1 GB. [2020-07-08 17:36:36,228 INFO L168 Benchmark]: CDTParser took 0.22 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-08 17:36:36,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.94 ms. Allocated memory is still 146.3 MB. Free memory was 102.5 MB in the beginning and 90.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:36,230 INFO L168 Benchmark]: Boogie Preprocessor took 191.18 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 90.9 MB in the beginning and 182.4 MB in the end (delta: -91.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:36,231 INFO L168 Benchmark]: RCFGBuilder took 564.70 ms. Allocated memory is still 205.5 MB. Free memory was 182.4 MB in the beginning and 150.4 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2020-07-08 17:36:36,232 INFO L168 Benchmark]: TraceAbstraction took 2766.62 ms. Allocated memory was 205.5 MB in the beginning and 244.3 MB in the end (delta: 38.8 MB). Free memory was 149.7 MB in the beginning and 202.1 MB in the end (delta: -52.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 17:36:36,236 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 0.22 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.94 ms. Allocated memory is still 146.3 MB. Free memory was 102.5 MB in the beginning and 90.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 191.18 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 90.9 MB in the beginning and 182.4 MB in the end (delta: -91.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 564.70 ms. Allocated memory is still 205.5 MB. Free memory was 182.4 MB in the beginning and 150.4 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2766.62 ms. Allocated memory was 205.5 MB in the beginning and 244.3 MB in the end (delta: 38.8 MB). Free memory was 149.7 MB in the beginning and 202.1 MB in the end (delta: -52.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...