/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/res1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:47:28,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:47:28,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:47:29,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:47:29,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:47:29,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:47:29,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:47:29,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:47:29,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:47:29,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:47:29,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:47:29,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:47:29,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:47:29,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:47:29,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:47:29,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:47:29,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:47:29,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:47:29,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:47:29,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:47:29,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:47:29,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:47:29,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:47:29,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:47:29,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:47:29,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:47:29,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:47:29,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:47:29,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:47:29,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:47:29,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:47:29,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:47:29,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:47:29,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:47:29,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:47:29,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:47:29,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:47:29,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:47:29,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:47:29,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:47:29,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:47:29,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:47:29,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:47:29,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:47:29,054 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:47:29,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:47:29,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:47:29,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:47:29,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:47:29,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:47:29,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:47:29,055 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:47:29,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:47:29,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:47:29,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:47:29,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:47:29,338 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:47:29,339 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1f.c [2020-07-18 00:47:29,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a37c87b/3d1e6d3d5ba3463ab86876002ceb644c/FLAG820359f39 [2020-07-18 00:47:29,851 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:47:29,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res1f.c [2020-07-18 00:47:29,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a37c87b/3d1e6d3d5ba3463ab86876002ceb644c/FLAG820359f39 [2020-07-18 00:47:30,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a37c87b/3d1e6d3d5ba3463ab86876002ceb644c [2020-07-18 00:47:30,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:47:30,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:47:30,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:30,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:47:30,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:47:30,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6902f5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30, skipping insertion in model container [2020-07-18 00:47:30,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:47:30,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:47:30,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:30,529 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:47:30,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:30,661 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:47:30,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30 WrapperNode [2020-07-18 00:47:30,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:30,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:47:30,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:47:30,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:47:30,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (1/1) ... [2020-07-18 00:47:30,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:47:30,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:47:30,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:47:30,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:47:30,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (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 [2020-07-18 00:47:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:47:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:47:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:47:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:47:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:47:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:47:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:47:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:47:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:47:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:47:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:47:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:47:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:47:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:47:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:47:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:47:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:47:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:47:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:47:31,298 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:47:31,299 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-18 00:47:31,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:31 BoogieIcfgContainer [2020-07-18 00:47:31,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:47:31,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:47:31,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:47:31,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:47:31,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:47:30" (1/3) ... [2020-07-18 00:47:31,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e247e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:31, skipping insertion in model container [2020-07-18 00:47:31,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:30" (2/3) ... [2020-07-18 00:47:31,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e247e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:31, skipping insertion in model container [2020-07-18 00:47:31,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:31" (3/3) ... [2020-07-18 00:47:31,321 INFO L109 eAbstractionObserver]: Analyzing ICFG res1f.c [2020-07-18 00:47:31,333 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:47:31,343 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:47:31,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:47:31,383 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:47:31,384 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:47:31,384 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:47:31,384 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:47:31,384 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:47:31,384 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:47:31,385 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:47:31,385 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:47:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-18 00:47:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 00:47:31,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:31,431 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] [2020-07-18 00:47:31,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:31,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1226656927, now seen corresponding path program 1 times [2020-07-18 00:47:31,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:31,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794127748] [2020-07-18 00:47:31,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:31,696 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 [2020-07-18 00:47:31,697 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} #valid := #valid[0 := 0]; {77#true} is VALID [2020-07-18 00:47:31,697 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} assume 0 < #StackHeapBarrier; {77#true} is VALID [2020-07-18 00:47:31,698 INFO L280 TraceCheckUtils]: 3: Hoare triple {77#true} ~N~0 := 0; {77#true} is VALID [2020-07-18 00:47:31,698 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-18 00:47:31,699 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {77#true} {77#true} #132#return; {77#true} is VALID [2020-07-18 00:47:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:31,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} ~cond := #in~cond; {77#true} is VALID [2020-07-18 00:47:31,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume !(0 == ~cond); {77#true} is VALID [2020-07-18 00:47:31,709 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-18 00:47:31,709 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {77#true} {77#true} #128#return; {77#true} is VALID [2020-07-18 00:47:31,712 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 [2020-07-18 00:47:31,712 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 [2020-07-18 00:47:31,712 INFO L280 TraceCheckUtils]: 2: Hoare triple {77#true} #valid := #valid[0 := 0]; {77#true} is VALID [2020-07-18 00:47:31,713 INFO L280 TraceCheckUtils]: 3: Hoare triple {77#true} assume 0 < #StackHeapBarrier; {77#true} is VALID [2020-07-18 00:47:31,713 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} ~N~0 := 0; {77#true} is VALID [2020-07-18 00:47:31,714 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-18 00:47:31,714 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {77#true} {77#true} #132#return; {77#true} is VALID [2020-07-18 00:47:31,714 INFO L263 TraceCheckUtils]: 7: Hoare triple {77#true} call #t~ret12 := main(); {77#true} is VALID [2020-07-18 00:47:31,715 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-18 00:47:31,715 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~N~0 := #t~nondet0; {77#true} is VALID [2020-07-18 00:47:31,716 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-18 00:47:31,716 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~N~0 <= 0); {77#true} is VALID [2020-07-18 00:47:31,716 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 [2020-07-18 00:47:31,717 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~cond := #in~cond; {77#true} is VALID [2020-07-18 00:47:31,717 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} assume !(0 == ~cond); {77#true} is VALID [2020-07-18 00:47:31,718 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-18 00:47:31,718 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {77#true} {77#true} #128#return; {77#true} is VALID [2020-07-18 00:47:31,718 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-18 00:47:31,719 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 [2020-07-18 00:47:31,719 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 [2020-07-18 00:47:31,720 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {77#true} is VALID [2020-07-18 00:47:31,720 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 [2020-07-18 00:47:31,720 INFO L280 TraceCheckUtils]: 22: Hoare triple {77#true} ~b~0.base, ~b~0.offset := #t~malloc2.base, #t~malloc2.offset; {77#true} is VALID [2020-07-18 00:47:31,721 INFO L280 TraceCheckUtils]: 23: Hoare triple {77#true} SUMMARY for call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L30 {77#true} is VALID [2020-07-18 00:47:31,721 INFO L280 TraceCheckUtils]: 24: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-18 00:47:31,724 INFO L280 TraceCheckUtils]: 25: Hoare triple {77#true} assume !true; {78#false} is VALID [2020-07-18 00:47:31,725 INFO L280 TraceCheckUtils]: 26: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-18 00:47:31,725 INFO L280 TraceCheckUtils]: 27: Hoare triple {78#false} assume !(~i~0 < ~N~0); {78#false} is VALID [2020-07-18 00:47:31,726 INFO L280 TraceCheckUtils]: 28: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-18 00:47:31,726 INFO L280 TraceCheckUtils]: 29: Hoare triple {78#false} assume !(~i~0 < ~N~0); {78#false} is VALID [2020-07-18 00:47:31,727 INFO L280 TraceCheckUtils]: 30: Hoare triple {78#false} ~i~0 := 0; {78#false} is VALID [2020-07-18 00:47:31,727 INFO L280 TraceCheckUtils]: 31: Hoare triple {78#false} assume !true; {78#false} is VALID [2020-07-18 00:47:31,727 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 [2020-07-18 00:47:31,728 INFO L263 TraceCheckUtils]: 33: Hoare triple {78#false} call __VERIFIER_assert((if #t~mem11 <= 2 * ~N~0 then 1 else 0)); {78#false} is VALID [2020-07-18 00:47:31,728 INFO L280 TraceCheckUtils]: 34: Hoare triple {78#false} ~cond := #in~cond; {78#false} is VALID [2020-07-18 00:47:31,729 INFO L280 TraceCheckUtils]: 35: Hoare triple {78#false} assume 0 == ~cond; {78#false} is VALID [2020-07-18 00:47:31,729 INFO L280 TraceCheckUtils]: 36: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-18 00:47:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:47:31,737 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:47:31,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794127748] [2020-07-18 00:47:31,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:47:31,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:47:31,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360686594] [2020-07-18 00:47:31,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-18 00:47:31,751 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:47:31,754 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:47:31,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:31,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:47:31,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:47:31,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:47:31,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:47:31,825 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-07-18 00:47:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:32,243 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2020-07-18 00:47:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:47:32,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-18 00:47:32,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:47:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:47:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2020-07-18 00:47:32,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:47:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2020-07-18 00:47:32,264 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 150 transitions. [2020-07-18 00:47:32,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:32,451 INFO L225 Difference]: With dead ends: 131 [2020-07-18 00:47:32,451 INFO L226 Difference]: Without dead ends: 62 [2020-07-18 00:47:32,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:47:32,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-18 00:47:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-07-18 00:47:32,547 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:47:32,547 INFO L82 GeneralOperation]: Start isEquivalent. First operand 62 states. Second operand 62 states. [2020-07-18 00:47:32,548 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 62 states. [2020-07-18 00:47:32,548 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 62 states. [2020-07-18 00:47:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:32,554 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-07-18 00:47:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-18 00:47:32,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:32,556 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:32,556 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 62 states. [2020-07-18 00:47:32,556 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 62 states. [2020-07-18 00:47:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:32,563 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-07-18 00:47:32,563 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-18 00:47:32,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:32,564 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:32,564 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:47:32,564 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:47:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-18 00:47:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-07-18 00:47:32,570 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 37 [2020-07-18 00:47:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:47:32,571 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-07-18 00:47:32,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:47:32,571 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 62 states and 65 transitions. [2020-07-18 00:47:32,656 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-07-18 00:47:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 00:47:32,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:32,659 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] [2020-07-18 00:47:32,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:47:32,660 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:32,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:32,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1534386935, now seen corresponding path program 1 times [2020-07-18 00:47:32,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:32,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149453806] [2020-07-18 00:47:32,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:32,780 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 [2020-07-18 00:47:32,781 INFO L280 TraceCheckUtils]: 1: Hoare triple {602#true} #valid := #valid[0 := 0]; {602#true} is VALID [2020-07-18 00:47:32,781 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} assume 0 < #StackHeapBarrier; {602#true} is VALID [2020-07-18 00:47:32,781 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#true} ~N~0 := 0; {602#true} is VALID [2020-07-18 00:47:32,782 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-18 00:47:32,782 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {602#true} {602#true} #132#return; {602#true} is VALID [2020-07-18 00:47:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:32,791 INFO L280 TraceCheckUtils]: 0: Hoare triple {602#true} ~cond := #in~cond; {602#true} is VALID [2020-07-18 00:47:32,792 INFO L280 TraceCheckUtils]: 1: Hoare triple {602#true} assume !(0 == ~cond); {602#true} is VALID [2020-07-18 00:47:32,792 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-18 00:47:32,793 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {602#true} {610#(<= 1 ~N~0)} #128#return; {610#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:32,795 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 [2020-07-18 00:47:32,795 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 [2020-07-18 00:47:32,796 INFO L280 TraceCheckUtils]: 2: Hoare triple {602#true} #valid := #valid[0 := 0]; {602#true} is VALID [2020-07-18 00:47:32,796 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#true} assume 0 < #StackHeapBarrier; {602#true} is VALID [2020-07-18 00:47:32,796 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#true} ~N~0 := 0; {602#true} is VALID [2020-07-18 00:47:32,797 INFO L280 TraceCheckUtils]: 5: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-18 00:47:32,797 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {602#true} {602#true} #132#return; {602#true} is VALID [2020-07-18 00:47:32,797 INFO L263 TraceCheckUtils]: 7: Hoare triple {602#true} call #t~ret12 := main(); {602#true} is VALID [2020-07-18 00:47:32,798 INFO L280 TraceCheckUtils]: 8: Hoare triple {602#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {602#true} is VALID [2020-07-18 00:47:32,798 INFO L280 TraceCheckUtils]: 9: Hoare triple {602#true} ~N~0 := #t~nondet0; {602#true} is VALID [2020-07-18 00:47:32,799 INFO L280 TraceCheckUtils]: 10: Hoare triple {602#true} havoc #t~nondet0; {602#true} is VALID [2020-07-18 00:47:32,800 INFO L280 TraceCheckUtils]: 11: Hoare triple {602#true} assume !(~N~0 <= 0); {610#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:32,800 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 [2020-07-18 00:47:32,801 INFO L280 TraceCheckUtils]: 13: Hoare triple {602#true} ~cond := #in~cond; {602#true} is VALID [2020-07-18 00:47:32,801 INFO L280 TraceCheckUtils]: 14: Hoare triple {602#true} assume !(0 == ~cond); {602#true} is VALID [2020-07-18 00:47:32,801 INFO L280 TraceCheckUtils]: 15: Hoare triple {602#true} assume true; {602#true} is VALID [2020-07-18 00:47:32,803 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {602#true} {610#(<= 1 ~N~0)} #128#return; {610#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:32,804 INFO L280 TraceCheckUtils]: 17: Hoare triple {610#(<= 1 ~N~0)} havoc ~i~0; {610#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:32,804 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 [2020-07-18 00:47:32,805 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 [2020-07-18 00:47:32,806 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 [2020-07-18 00:47:32,807 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 [2020-07-18 00:47:32,808 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 [2020-07-18 00:47:32,809 INFO L280 TraceCheckUtils]: 23: Hoare triple {610#(<= 1 ~N~0)} SUMMARY for call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L30 {610#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:32,810 INFO L280 TraceCheckUtils]: 24: Hoare triple {610#(<= 1 ~N~0)} ~i~0 := 0; {615#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-18 00:47:32,811 INFO L280 TraceCheckUtils]: 25: Hoare triple {615#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-18 00:47:32,811 INFO L280 TraceCheckUtils]: 26: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-18 00:47:32,812 INFO L280 TraceCheckUtils]: 27: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-18 00:47:32,812 INFO L280 TraceCheckUtils]: 28: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-18 00:47:32,812 INFO L280 TraceCheckUtils]: 29: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-18 00:47:32,813 INFO L280 TraceCheckUtils]: 30: Hoare triple {603#false} ~i~0 := 0; {603#false} is VALID [2020-07-18 00:47:32,813 INFO L280 TraceCheckUtils]: 31: Hoare triple {603#false} assume !(~i~0 < ~N~0); {603#false} is VALID [2020-07-18 00:47:32,813 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 [2020-07-18 00:47:32,814 INFO L263 TraceCheckUtils]: 33: Hoare triple {603#false} call __VERIFIER_assert((if #t~mem11 <= 2 * ~N~0 then 1 else 0)); {603#false} is VALID [2020-07-18 00:47:32,814 INFO L280 TraceCheckUtils]: 34: Hoare triple {603#false} ~cond := #in~cond; {603#false} is VALID [2020-07-18 00:47:32,815 INFO L280 TraceCheckUtils]: 35: Hoare triple {603#false} assume 0 == ~cond; {603#false} is VALID [2020-07-18 00:47:32,815 INFO L280 TraceCheckUtils]: 36: Hoare triple {603#false} assume !false; {603#false} is VALID [2020-07-18 00:47:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:47:32,823 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:47:32,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149453806] [2020-07-18 00:47:32,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:47:32,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:47:32,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227359175] [2020-07-18 00:47:32,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-18 00:47:32,826 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:47:32,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:47:32,874 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:32,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:47:32,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:47:32,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:47:32,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:47:32,876 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 5 states. [2020-07-18 00:47:33,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:33,474 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2020-07-18 00:47:33,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:47:33,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-18 00:47:33,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:47:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:47:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-18 00:47:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:47:33,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-18 00:47:33,484 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-18 00:47:33,660 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:33,666 INFO L225 Difference]: With dead ends: 118 [2020-07-18 00:47:33,666 INFO L226 Difference]: Without dead ends: 86 [2020-07-18 00:47:33,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:47:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-18 00:47:33,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2020-07-18 00:47:33,770 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:47:33,770 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand 66 states. [2020-07-18 00:47:33,772 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 66 states. [2020-07-18 00:47:33,772 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 66 states. [2020-07-18 00:47:33,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:33,781 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-07-18 00:47:33,781 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-07-18 00:47:33,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:33,783 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:33,783 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 86 states. [2020-07-18 00:47:33,783 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 86 states. [2020-07-18 00:47:33,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:33,794 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2020-07-18 00:47:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2020-07-18 00:47:33,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:33,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:33,800 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:47:33,800 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:47:33,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-18 00:47:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-07-18 00:47:33,805 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 37 [2020-07-18 00:47:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:47:33,806 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-07-18 00:47:33,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:47:33,806 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 66 states and 69 transitions. [2020-07-18 00:47:33,907 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-07-18 00:47:33,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-18 00:47:33,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:33,910 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] [2020-07-18 00:47:33,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:47:33,910 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:33,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1623654441, now seen corresponding path program 1 times [2020-07-18 00:47:33,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:33,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362273878] [2020-07-18 00:47:33,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:33,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:47:33,937 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:458) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:290) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:47:33,943 INFO L168 Benchmark]: Toolchain (without parser) took 3682.94 ms. Allocated memory was 144.7 MB in the beginning and 247.5 MB in the end (delta: 102.8 MB). Free memory was 102.5 MB in the beginning and 218.5 MB in the end (delta: -116.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:47:33,944 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:47:33,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.95 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 102.1 MB in the beginning and 181.4 MB in the end (delta: -79.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:33,946 INFO L168 Benchmark]: Boogie Preprocessor took 49.31 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:33,947 INFO L168 Benchmark]: RCFGBuilder took 596.09 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 145.9 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:33,948 INFO L168 Benchmark]: TraceAbstraction took 2629.30 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 145.2 MB in the beginning and 218.5 MB in the end (delta: -73.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:47:33,952 INFO L336 ainManager$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 0.29 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 399.95 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 102.1 MB in the beginning and 181.4 MB in the end (delta: -79.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.31 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 596.09 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 145.9 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2629.30 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 145.2 MB in the beginning and 218.5 MB in the end (delta: -73.3 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:458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...