/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/sum_array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:32,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:32,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:32,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:32,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:32,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:32,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:32,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:32,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:32,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:32,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:32,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:32,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:32,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:32,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:32,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:32,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:32,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:32,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:32,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:32,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:32,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:32,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:32,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:32,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:32,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:32,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:32,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:32,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:50:32,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:32,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:32,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:32,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:32,989 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:32,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:32,990 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:32,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:32,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:32,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:32,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:32,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:32,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:32,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:32,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:32,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:32,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:32,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:32,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:32,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:32,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:32,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:32,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:32,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:32,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:32,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:32,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:32,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:32,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:32,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:33,357 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:33,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:33,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:33,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:33,382 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:33,383 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array-1.c [2020-07-17 22:50:33,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be067a20/dc335a465d8b449396750f0f5d63a31c/FLAG379fd45fa [2020-07-17 22:50:34,231 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:34,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array-1.c [2020-07-17 22:50:34,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be067a20/dc335a465d8b449396750f0f5d63a31c/FLAG379fd45fa [2020-07-17 22:50:34,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be067a20/dc335a465d8b449396750f0f5d63a31c [2020-07-17 22:50:34,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:34,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:34,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:34,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:34,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:34,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:34,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb96a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34, skipping insertion in model container [2020-07-17 22:50:34,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:34,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:34,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:34,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:34,825 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:34,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:34,885 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:34,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34 WrapperNode [2020-07-17 22:50:34,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:34,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:34,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:34,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:34,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:34,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:35,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:35,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:35,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:35,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:35,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... [2020-07-17 22:50:35,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:35,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:35,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:35,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:35,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-17 22:50:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:50:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:50:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:50:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:50:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:35,730 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:35,730 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-17 22:50:35,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:35 BoogieIcfgContainer [2020-07-17 22:50:35,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:35,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:35,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:35,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:35,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:34" (1/3) ... [2020-07-17 22:50:35,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fde0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:35, skipping insertion in model container [2020-07-17 22:50:35,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:34" (2/3) ... [2020-07-17 22:50:35,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fde0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:35, skipping insertion in model container [2020-07-17 22:50:35,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:35" (3/3) ... [2020-07-17 22:50:35,754 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2020-07-17 22:50:35,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:35,783 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:35,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:35,833 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:35,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:35,834 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:35,834 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:35,834 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:35,834 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:35,834 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:35,835 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:35,862 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-17 22:50:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:50:35,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:35,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:35,874 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:35,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:35,881 INFO L82 PathProgramCache]: Analyzing trace with hash 415311520, now seen corresponding path program 1 times [2020-07-17 22:50:35,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:35,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866519547] [2020-07-17 22:50:35,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:36,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {38#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {33#true} is VALID [2020-07-17 22:50:36,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:50:36,207 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #77#return; {33#true} is VALID [2020-07-17 22:50:36,213 INFO L263 TraceCheckUtils]: 0: Hoare triple {33#true} call ULTIMATE.init(); {38#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:50:36,214 INFO L280 TraceCheckUtils]: 1: Hoare triple {38#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {33#true} is VALID [2020-07-17 22:50:36,215 INFO L280 TraceCheckUtils]: 2: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:50:36,216 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} #77#return; {33#true} is VALID [2020-07-17 22:50:36,216 INFO L263 TraceCheckUtils]: 4: Hoare triple {33#true} call #t~ret12 := main(); {33#true} is VALID [2020-07-17 22:50:36,217 INFO L280 TraceCheckUtils]: 5: Hoare triple {33#true} ~M~0 := #t~nondet0;havoc #t~nondet0;call ~#A~0.base, ~#A~0.offset := #Ultimate.allocOnStack(4 * (if ~M~0 % 4294967296 % 4294967296 <= 2147483647 then ~M~0 % 4294967296 % 4294967296 else ~M~0 % 4294967296 % 4294967296 - 4294967296));call ~#B~0.base, ~#B~0.offset := #Ultimate.allocOnStack(4 * (if ~M~0 % 4294967296 % 4294967296 <= 2147483647 then ~M~0 % 4294967296 % 4294967296 else ~M~0 % 4294967296 % 4294967296 - 4294967296));call ~#C~0.base, ~#C~0.offset := #Ultimate.allocOnStack(4 * (if ~M~0 % 4294967296 % 4294967296 <= 2147483647 then ~M~0 % 4294967296 % 4294967296 else ~M~0 % 4294967296 % 4294967296 - 4294967296));havoc ~i~0;~i~0 := 0; {33#true} is VALID [2020-07-17 22:50:36,221 INFO L280 TraceCheckUtils]: 6: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-17 22:50:36,222 INFO L280 TraceCheckUtils]: 7: Hoare triple {34#false} ~i~0 := 0; {34#false} is VALID [2020-07-17 22:50:36,223 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#false} assume !(~i~0 % 4294967296 < ~M~0 % 4294967296); {34#false} is VALID [2020-07-17 22:50:36,224 INFO L280 TraceCheckUtils]: 9: Hoare triple {34#false} ~i~0 := 0; {34#false} is VALID [2020-07-17 22:50:36,224 INFO L280 TraceCheckUtils]: 10: Hoare triple {34#false} assume !(~i~0 % 4294967296 < ~M~0 % 4294967296); {34#false} is VALID [2020-07-17 22:50:36,224 INFO L280 TraceCheckUtils]: 11: Hoare triple {34#false} ~i~0 := 0; {34#false} is VALID [2020-07-17 22:50:36,225 INFO L280 TraceCheckUtils]: 12: Hoare triple {34#false} assume !!(~i~0 % 4294967296 < ~M~0 % 4294967296);call #t~mem11 := read~int(~#C~0.base, ~#C~0.offset + 4 * (if ~i~0 % 4294967296 % 4294967296 <= 2147483647 then ~i~0 % 4294967296 % 4294967296 else ~i~0 % 4294967296 % 4294967296 - 4294967296), 4);call #t~mem9 := read~int(~#A~0.base, ~#A~0.offset + 4 * (if ~i~0 % 4294967296 % 4294967296 <= 2147483647 then ~i~0 % 4294967296 % 4294967296 else ~i~0 % 4294967296 % 4294967296 - 4294967296), 4);call #t~mem10 := read~int(~#B~0.base, ~#B~0.offset + 4 * (if ~i~0 % 4294967296 % 4294967296 <= 2147483647 then ~i~0 % 4294967296 % 4294967296 else ~i~0 % 4294967296 % 4294967296 - 4294967296), 4); {34#false} is VALID [2020-07-17 22:50:36,226 INFO L263 TraceCheckUtils]: 13: Hoare triple {34#false} call __VERIFIER_assert((if #t~mem11 == #t~mem9 - #t~mem10 then 1 else 0)); {34#false} is VALID [2020-07-17 22:50:36,227 INFO L280 TraceCheckUtils]: 14: Hoare triple {34#false} ~cond := #in~cond; {34#false} is VALID [2020-07-17 22:50:36,227 INFO L280 TraceCheckUtils]: 15: Hoare triple {34#false} assume 0 == ~cond; {34#false} is VALID [2020-07-17 22:50:36,228 INFO L280 TraceCheckUtils]: 16: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-17 22:50:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:36,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866519547] [2020-07-17 22:50:36,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:36,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:50:36,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897036543] [2020-07-17 22:50:36,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-17 22:50:36,245 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:36,250 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:50:36,313 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:36,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:50:36,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:36,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:50:36,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:36,326 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-07-17 22:50:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:36,635 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-07-17 22:50:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:50:36,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-17 22:50:36,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2020-07-17 22:50:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2020-07-17 22:50:36,659 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 67 transitions. [2020-07-17 22:50:36,847 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:36,889 INFO L225 Difference]: With dead ends: 52 [2020-07-17 22:50:36,890 INFO L226 Difference]: Without dead ends: 25 [2020-07-17 22:50:36,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-17 22:50:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-17 22:50:36,988 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:36,989 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 25 states. [2020-07-17 22:50:36,990 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-17 22:50:36,991 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-17 22:50:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:36,996 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-07-17 22:50:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-07-17 22:50:36,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:36,999 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:36,999 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-17 22:50:37,000 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-17 22:50:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:37,004 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-07-17 22:50:37,019 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-07-17 22:50:37,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:37,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:37,021 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:37,021 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 22:50:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-07-17 22:50:37,026 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2020-07-17 22:50:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:37,027 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-07-17 22:50:37,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:50:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-07-17 22:50:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:50:37,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:37,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:37,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:37,031 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:37,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1687882214, now seen corresponding path program 1 times [2020-07-17 22:50:37,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:37,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113572781] [2020-07-17 22:50:37,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:37,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:37,411 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-17 22:50:37,428 INFO L168 Benchmark]: Toolchain (without parser) took 2882.27 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 101.7 MB in the beginning and 191.2 MB in the end (delta: -89.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:50:37,433 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:37,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.35 ms. Allocated memory is still 144.7 MB. Free memory was 101.3 MB in the beginning and 90.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:37,438 INFO L168 Benchmark]: Boogie Preprocessor took 162.11 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 90.5 MB in the beginning and 179.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:37,447 INFO L168 Benchmark]: RCFGBuilder took 692.59 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 152.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:37,450 INFO L168 Benchmark]: TraceAbstraction took 1679.06 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 152.2 MB in the beginning and 191.2 MB in the end (delta: -39.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:50:37,463 INFO L336 ainManager$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 0.58 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 335.35 ms. Allocated memory is still 144.7 MB. Free memory was 101.3 MB in the beginning and 90.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.11 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 90.5 MB in the beginning and 179.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 692.59 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 152.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1679.06 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 152.2 MB in the beginning and 191.2 MB in the end (delta: -39.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...