/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/indp4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:37:25,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:37:25,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:37:25,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:37:25,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:37:25,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:37:25,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:37:25,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:37:25,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:37:25,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:37:25,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:37:25,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:37:25,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:37:25,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:37:25,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:37:25,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:37:25,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:37:25,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:37:25,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:37:25,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:37:25,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:37:25,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:37:25,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:37:25,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:37:25,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 23:37:25,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 23:37:25,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 23:37:25,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 23:37:25,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 23:37:25,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 23:37:25,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 23:37:25,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 23:37:25,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 23:37:25,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 23:37:25,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 23:37:25,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 23:37:25,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 23:37:25,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 23:37:25,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:37:25,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:37:25,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:37:25,504 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 [2020-07-19 23:37:25,523 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:37:25,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:37:25,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:37:25,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:37:25,525 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:37:25,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:37:25,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:37:25,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:37:25,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:37:25,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:37:25,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:37:25,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:37:25,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:37:25,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:37:25,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:37:25,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:37:25,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:37:25,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:37:25,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:37:25,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:37:25,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:37:25,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:37:25,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:37:25,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:37:25,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:37:25,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:37:25,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:37:25,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:37:25,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:37:25,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:37:25,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:37:25,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:37:25,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:37:25,833 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:37:25,833 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:37:25,834 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp4f.c [2020-07-19 23:37:25,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cde64f99/97cd9b1529b7478a91a65fc53cc4134e/FLAG17b977e23 [2020-07-19 23:37:26,277 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:37:26,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp4f.c [2020-07-19 23:37:26,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cde64f99/97cd9b1529b7478a91a65fc53cc4134e/FLAG17b977e23 [2020-07-19 23:37:26,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cde64f99/97cd9b1529b7478a91a65fc53cc4134e [2020-07-19 23:37:26,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:37:26,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:37:26,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:26,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:37:26,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:37:26,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:26,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bad1f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26, skipping insertion in model container [2020-07-19 23:37:26,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:26,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:37:26,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:37:26,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:26,917 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:37:26,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:26,948 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:37:26,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26 WrapperNode [2020-07-19 23:37:26,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:26,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:37:26,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:37:26,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:37:27,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (1/1) ... [2020-07-19 23:37:27,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:37:27,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:37:27,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:37:27,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:37:27,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (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 [2020-07-19 23:37:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:37:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:37:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 23:37:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:37:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:37:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:37:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:37:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 23:37:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:37:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:37:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 23:37:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:37:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 23:37:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:37:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:37:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:37:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:37:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:37:27,428 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:37:27,428 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-19 23:37:27,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:27 BoogieIcfgContainer [2020-07-19 23:37:27,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:37:27,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:37:27,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:37:27,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:37:27,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:37:26" (1/3) ... [2020-07-19 23:37:27,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d78270b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:27, skipping insertion in model container [2020-07-19 23:37:27,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:26" (2/3) ... [2020-07-19 23:37:27,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d78270b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:27, skipping insertion in model container [2020-07-19 23:37:27,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:27" (3/3) ... [2020-07-19 23:37:27,455 INFO L109 eAbstractionObserver]: Analyzing ICFG indp4f.c [2020-07-19 23:37:27,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:37:27,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:37:27,489 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:37:27,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:37:27,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:37:27,510 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:37:27,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:37:27,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:37:27,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:37:27,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:37:27,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:37:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-19 23:37:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 23:37:27,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:27,534 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] [2020-07-19 23:37:27,534 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:27,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-07-19 23:37:27,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:27,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638899552] [2020-07-19 23:37:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f7fcde7 [2020-07-19 23:37:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:37:27,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638899552] [2020-07-19 23:37:27,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:27,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 23:37:27,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367975894] [2020-07-19 23:37:27,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:37:27,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:27,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:37:27,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 23:37:27,768 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-07-19 23:37:27,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:27,896 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-07-19 23:37:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:37:27,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-19 23:37:27,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:27,907 INFO L225 Difference]: With dead ends: 64 [2020-07-19 23:37:27,908 INFO L226 Difference]: Without dead ends: 32 [2020-07-19 23:37:27,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 23:37:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-19 23:37:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-07-19 23:37:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-19 23:37:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-19 23:37:27,951 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-07-19 23:37:27,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:27,951 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-19 23:37:27,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:37:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-19 23:37:27,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 23:37:27,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:27,953 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] [2020-07-19 23:37:27,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:37:27,954 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:27,955 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-07-19 23:37:27,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:27,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974972448] [2020-07-19 23:37:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f7fcde7 [2020-07-19 23:37:27,991 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 23:37:27,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530175578] [2020-07-19 23:37:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32c570a0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:37:28,058 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32c570a0 issued 2 check-sat command(s) [2020-07-19 23:37:28,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:37:28,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-19 23:37:28,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:37:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:37:28,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974972448] [2020-07-19 23:37:28,112 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-19 23:37:28,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530175578] [2020-07-19 23:37:28,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:28,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:37:28,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536927436] [2020-07-19 23:37:28,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 23:37:28,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:28,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 23:37:28,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:37:28,117 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 4 states. [2020-07-19 23:37:28,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:28,190 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-07-19 23:37:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 23:37:28,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-19 23:37:28,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:28,194 INFO L225 Difference]: With dead ends: 59 [2020-07-19 23:37:28,194 INFO L226 Difference]: Without dead ends: 42 [2020-07-19 23:37:28,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:37:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-19 23:37:28,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2020-07-19 23:37:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-19 23:37:28,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-07-19 23:37:28,209 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-07-19 23:37:28,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:28,209 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-07-19 23:37:28,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 23:37:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-07-19 23:37:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:37:28,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:28,211 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] [2020-07-19 23:37:28,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 23:37:28,427 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:28,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:28,428 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-07-19 23:37:28,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:28,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543262904] [2020-07-19 23:37:28,430 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f7fcde7 [2020-07-19 23:37:28,452 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 23:37:28,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195838979] [2020-07-19 23:37:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65d74cd5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:37:28,518 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65d74cd5 issued 4 check-sat command(s) [2020-07-19 23:37:28,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-19 23:37:28,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:37:28,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:28,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:37:28,562 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:37:28,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:37:28,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:37:28 BoogieIcfgContainer [2020-07-19 23:37:28,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:37:28,818 INFO L168 Benchmark]: Toolchain (without parser) took 2126.89 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 104.4 MB in the beginning and 95.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:28,819 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 23:37:28,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.64 ms. Allocated memory is still 140.0 MB. Free memory was 104.0 MB in the beginning and 93.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:28,821 INFO L168 Benchmark]: Boogie Preprocessor took 110.70 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 180.5 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:28,822 INFO L168 Benchmark]: RCFGBuilder took 371.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 163.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:28,823 INFO L168 Benchmark]: TraceAbstraction took 1381.52 ms. Allocated memory is still 202.9 MB. Free memory was 162.8 MB in the beginning and 95.0 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:28,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.64 ms. Allocated memory is still 140.0 MB. Free memory was 104.0 MB in the beginning and 93.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.70 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 180.5 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 163.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1381.52 ms. Allocated memory is still 202.9 MB. Free memory was 162.8 MB in the beginning and 95.0 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=3, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L28] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1] [L28] COND TRUE i