/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/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:46:37,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:46:37,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:46:37,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:46:37,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:46:37,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:46:37,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:46:37,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:46:37,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:46:37,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:46:37,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:46:37,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:46:37,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:46:37,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:46:37,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:46:37,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:46:37,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:46:37,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:46:37,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:46:37,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:46:37,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:46:37,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:46:37,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:46:37,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:46:37,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 12:46:37,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:46:37,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:46:37,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:46:37,420 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 [2020-07-08 12:46:37,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:46:37,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:46:37,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:46:37,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:46:37,439 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:46:37,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:46:37,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:46:37,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:46:37,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:46:37,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:46:37,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:46:37,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:46:37,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:46:37,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:46:37,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:46:37,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:46:37,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:46:37,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:46:37,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:46:37,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:46:37,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:46:37,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:46:37,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:46:37,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:46:37,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:46:37,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:46:37,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:46:37,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:46:37,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:46:37,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:46:37,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:46:37,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:46:37,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:46:37,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:46:37,810 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:46:37,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-07-08 12:46:37,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb7c87e6/0f4e082b58ce4503a9cbef69b0884c3a/FLAGa6f49e78d [2020-07-08 12:46:38,467 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:46:38,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-07-08 12:46:38,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb7c87e6/0f4e082b58ce4503a9cbef69b0884c3a/FLAGa6f49e78d [2020-07-08 12:46:38,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb7c87e6/0f4e082b58ce4503a9cbef69b0884c3a [2020-07-08 12:46:38,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:46:38,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:46:38,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:46:38,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:46:38,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:46:38,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:46:38" (1/1) ... [2020-07-08 12:46:38,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b2e897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:38, skipping insertion in model container [2020-07-08 12:46:38,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:46:38" (1/1) ... [2020-07-08 12:46:38,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:46:38,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:46:39,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:46:39,066 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:46:39,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:46:39,120 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:46:39,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39 WrapperNode [2020-07-08 12:46:39,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:46:39,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:46:39,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:46:39,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:46:39,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... [2020-07-08 12:46:39,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:46:39,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:46:39,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:46:39,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:46:39,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:46:39,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:46:39,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:46:39,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 12:46:39,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 12:46:39,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:46:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:46:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 12:46:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 12:46:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 12:46:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-08 12:46:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:46:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 12:46:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 12:46:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 12:46:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:46:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:46:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 12:46:39,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:46:39,821 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-08 12:46:39,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:46:39 BoogieIcfgContainer [2020-07-08 12:46:39,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:46:39,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:46:39,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:46:39,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:46:39,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:46:38" (1/3) ... [2020-07-08 12:46:39,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9ab52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:46:39, skipping insertion in model container [2020-07-08 12:46:39,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:46:39" (2/3) ... [2020-07-08 12:46:39,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9ab52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:46:39, skipping insertion in model container [2020-07-08 12:46:39,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:46:39" (3/3) ... [2020-07-08 12:46:39,835 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2020-07-08 12:46:39,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:46:39,855 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:46:39,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:46:39,897 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:46:39,897 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:46:39,897 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:46:39,898 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:46:39,898 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:46:39,898 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:46:39,898 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:46:39,898 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:46:39,919 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-08 12:46:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 12:46:39,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:46:39,927 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:46:39,927 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:46:39,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:46:39,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1561713717, now seen corresponding path program 1 times [2020-07-08 12:46:39,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:46:39,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368153622] [2020-07-08 12:46:39,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:46:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:46:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:46:40,216 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#(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; {36#true} is VALID [2020-07-08 12:46:40,217 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-08 12:46:40,217 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} #67#return; {36#true} is VALID [2020-07-08 12:46:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:46:40,263 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-08 12:46:40,264 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-08 12:46:40,265 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-08 12:46:40,266 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#false} {36#true} #71#return; {37#false} is VALID [2020-07-08 12:46:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:46:40,274 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-08 12:46:40,275 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-08 12:46:40,276 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-08 12:46:40,276 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#false} {37#false} #73#return; {37#false} is VALID [2020-07-08 12:46:40,278 INFO L263 TraceCheckUtils]: 0: Hoare triple {36#true} call ULTIMATE.init(); {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:46:40,279 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#(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; {36#true} is VALID [2020-07-08 12:46:40,279 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-08 12:46:40,280 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36#true} {36#true} #67#return; {36#true} is VALID [2020-07-08 12:46:40,280 INFO L263 TraceCheckUtils]: 4: Hoare triple {36#true} call #t~ret10 := main(); {36#true} is VALID [2020-07-08 12:46:40,281 INFO L280 TraceCheckUtils]: 5: Hoare triple {36#true} call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(400000);havoc ~index1~0;havoc ~index2~0;~loop_entered~0 := 0;~index1~0 := #t~nondet0;havoc #t~nondet0; {36#true} is VALID [2020-07-08 12:46:40,281 INFO L263 TraceCheckUtils]: 6: Hoare triple {36#true} call assume_abort_if_not((if ~index1~0 % 4294967296 < 100000 then 1 else 0)); {36#true} is VALID [2020-07-08 12:46:40,282 INFO L280 TraceCheckUtils]: 7: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-08 12:46:40,283 INFO L280 TraceCheckUtils]: 8: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-08 12:46:40,283 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-08 12:46:40,284 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {37#false} {36#true} #71#return; {37#false} is VALID [2020-07-08 12:46:40,284 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#false} ~index2~0 := #t~nondet1;havoc #t~nondet1; {37#false} is VALID [2020-07-08 12:46:40,284 INFO L263 TraceCheckUtils]: 12: Hoare triple {37#false} call assume_abort_if_not((if ~index2~0 % 4294967296 < 100000 then 1 else 0)); {36#true} is VALID [2020-07-08 12:46:40,285 INFO L280 TraceCheckUtils]: 13: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-08 12:46:40,286 INFO L280 TraceCheckUtils]: 14: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-08 12:46:40,286 INFO L280 TraceCheckUtils]: 15: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-08 12:46:40,287 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {37#false} {37#false} #73#return; {37#false} is VALID [2020-07-08 12:46:40,287 INFO L280 TraceCheckUtils]: 17: Hoare triple {37#false} assume !!(~index1~0 % 4294967296 < ~index2~0 % 4294967296); {37#false} is VALID [2020-07-08 12:46:40,288 INFO L263 TraceCheckUtils]: 18: Hoare triple {37#false} call __VERIFIER_assert((if ~index1~0 % 4294967296 < 100000 && ~index2~0 % 4294967296 < 100000 then 1 else 0)); {37#false} is VALID [2020-07-08 12:46:40,288 INFO L280 TraceCheckUtils]: 19: Hoare triple {37#false} ~cond := #in~cond; {37#false} is VALID [2020-07-08 12:46:40,289 INFO L280 TraceCheckUtils]: 20: Hoare triple {37#false} assume 0 == ~cond; {37#false} is VALID [2020-07-08 12:46:40,289 INFO L280 TraceCheckUtils]: 21: Hoare triple {37#false} assume !false; {37#false} is VALID [2020-07-08 12:46:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 12:46:40,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368153622] [2020-07-08 12:46:40,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:46:40,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 12:46:40,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429981930] [2020-07-08 12:46:40,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-08 12:46:40,307 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:46:40,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 12:46:40,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:46:40,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 12:46:40,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:46:40,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 12:46:40,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 12:46:40,374 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-07-08 12:46:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:46:40,632 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2020-07-08 12:46:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 12:46:40,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-08 12:46:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:46:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 12:46:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2020-07-08 12:46:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 12:46:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2020-07-08 12:46:40,654 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 81 transitions. [2020-07-08 12:46:40,864 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:46:40,888 INFO L225 Difference]: With dead ends: 59 [2020-07-08 12:46:40,888 INFO L226 Difference]: Without dead ends: 28 [2020-07-08 12:46:40,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 12:46:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-08 12:46:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-08 12:46:40,953 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:46:40,954 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand 28 states. [2020-07-08 12:46:40,954 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2020-07-08 12:46:40,955 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2020-07-08 12:46:40,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:46:40,962 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2020-07-08 12:46:40,962 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-07-08 12:46:40,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:46:40,963 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:46:40,963 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2020-07-08 12:46:40,963 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2020-07-08 12:46:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:46:40,969 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2020-07-08 12:46:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-07-08 12:46:40,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:46:40,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:46:40,971 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:46:40,971 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:46:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-08 12:46:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-07-08 12:46:40,977 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 22 [2020-07-08 12:46:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:46:40,978 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-07-08 12:46:40,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 12:46:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-07-08 12:46:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 12:46:40,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:46:40,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:46:40,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:46:40,980 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:46:40,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:46:40,981 INFO L82 PathProgramCache]: Analyzing trace with hash -258750159, now seen corresponding path program 1 times [2020-07-08 12:46:40,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:46:40,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248779141] [2020-07-08 12:46:40,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:46:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:46:41,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 12:46:41,119 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:799) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:883) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 12:46:41,132 INFO L168 Benchmark]: Toolchain (without parser) took 2317.29 ms. Allocated memory was 136.8 MB in the beginning and 230.7 MB in the end (delta: 93.8 MB). Free memory was 100.8 MB in the beginning and 187.8 MB in the end (delta: -87.0 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2020-07-08 12:46:41,133 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 136.8 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 12:46:41,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.95 ms. Allocated memory is still 136.8 MB. Free memory was 100.8 MB in the beginning and 89.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-08 12:46:41,134 INFO L168 Benchmark]: Boogie Preprocessor took 167.54 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 89.5 MB in the beginning and 177.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:46:41,135 INFO L168 Benchmark]: RCFGBuilder took 535.29 ms. Allocated memory is still 200.3 MB. Free memory was 177.8 MB in the beginning and 153.5 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-07-08 12:46:41,136 INFO L168 Benchmark]: TraceAbstraction took 1297.39 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 153.5 MB in the beginning and 187.8 MB in the end (delta: -34.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 12:46:41,140 INFO L336 ainManager$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 0.32 ms. Allocated memory is still 136.8 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.95 ms. Allocated memory is still 136.8 MB. Free memory was 100.8 MB in the beginning and 89.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.54 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 89.5 MB in the beginning and 177.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 535.29 ms. Allocated memory is still 200.3 MB. Free memory was 177.8 MB in the beginning and 153.5 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1297.39 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 153.5 MB in the beginning and 187.8 MB in the end (delta: -34.3 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...