/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:21:12,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:21:12,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:21:12,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:21:12,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:21:12,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:21:12,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:21:12,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:21:12,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:21:12,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:21:12,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:21:12,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:21:12,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:21:12,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:21:12,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:21:12,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:21:12,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:21:12,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:21:12,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:21:12,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:21:12,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:21:12,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:21:12,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:21:12,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:21:12,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:21:12,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:21:12,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:21:12,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:21:12,195 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 [2020-07-20 14:21:12,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:21:12,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:21:12,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:21:12,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:21:12,225 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:21:12,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:21:12,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:21:12,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:21:12,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:21:12,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:21:12,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:21:12,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:21:12,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:21:12,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:21:12,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:21:12,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:21:12,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:21:12,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:21:12,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:21:12,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:21:12,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:21:12,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:21:12,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:21:12,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:21:12,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:21:12,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:21:12,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:21:12,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:21:12,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:21:12,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC 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 [2020-07-20 14:21:12,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:21:12,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:21:12,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:21:12,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:21:12,597 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:21:12,598 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-07-20 14:21:12,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a67e095/6e0db90fb340412994421f9d8903fe90/FLAGcdf7e26fa [2020-07-20 14:21:13,186 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:21:13,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2020-07-20 14:21:13,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a67e095/6e0db90fb340412994421f9d8903fe90/FLAGcdf7e26fa [2020-07-20 14:21:13,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a67e095/6e0db90fb340412994421f9d8903fe90 [2020-07-20 14:21:13,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:21:13,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:21:13,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:21:13,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:21:13,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:21:13,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eead16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13, skipping insertion in model container [2020-07-20 14:21:13,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:21:13,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:21:13,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:21:13,783 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:21:13,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:21:13,826 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:21:13,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13 WrapperNode [2020-07-20 14:21:13,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:21:13,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:21:13,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:21:13,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:21:13,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (1/1) ... [2020-07-20 14:21:13,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:21:13,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:21:13,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:21:13,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:21:13,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (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 [2020-07-20 14:21:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:21:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:21:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 14:21:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 14:21:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:21:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:21:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 14:21:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 14:21:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 14:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-20 14:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 14:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 14:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 14:21:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 14:21:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:21:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:21:14,267 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:21:14,268 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:21:14,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:21:14 BoogieIcfgContainer [2020-07-20 14:21:14,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:21:14,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:21:14,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:21:14,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:21:14,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:21:13" (1/3) ... [2020-07-20 14:21:14,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1b9239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:21:14, skipping insertion in model container [2020-07-20 14:21:14,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:13" (2/3) ... [2020-07-20 14:21:14,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1b9239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:21:14, skipping insertion in model container [2020-07-20 14:21:14,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:21:14" (3/3) ... [2020-07-20 14:21:14,299 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2020-07-20 14:21:14,312 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:21:14,322 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:21:14,357 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:21:14,382 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:21:14,382 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:21:14,383 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:21:14,383 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:21:14,384 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:21:14,384 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:21:14,384 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:21:14,384 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:21:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-20 14:21:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 14:21:14,409 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:21:14,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:21:14,411 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:21:14,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:21:14,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1649343282, now seen corresponding path program 1 times [2020-07-20 14:21:14,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:21:14,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728866956] [2020-07-20 14:21:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:21:14,530 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 14:21:14,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:21:14,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 14:21:14,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:21:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:21:14,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:21:14,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728866956] [2020-07-20 14:21:14,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:21:14,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 14:21:14,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515783903] [2020-07-20 14:21:14,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 14:21:14,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:21:14,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 14:21:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 14:21:14,588 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-20 14:21:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:21:14,614 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2020-07-20 14:21:14,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 14:21:14,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-20 14:21:14,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:21:14,625 INFO L225 Difference]: With dead ends: 36 [2020-07-20 14:21:14,625 INFO L226 Difference]: Without dead ends: 15 [2020-07-20 14:21:14,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 14:21:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-20 14:21:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-20 14:21:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-20 14:21:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-07-20 14:21:14,667 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2020-07-20 14:21:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:21:14,668 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-07-20 14:21:14,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 14:21:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-20 14:21:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 14:21:14,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:21:14,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:21:14,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:21:14,877 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:21:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:21:14,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1939839121, now seen corresponding path program 1 times [2020-07-20 14:21:14,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:21:14,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124331359] [2020-07-20 14:21:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:21:14,953 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:21:14,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 14:21:14,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 14:21:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 14:21:14,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 14:21:14,996 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 14:21:14,997 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 14:21:15,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:21:15,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:21:15 BoogieIcfgContainer [2020-07-20 14:21:15,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:21:15,260 INFO L168 Benchmark]: Toolchain (without parser) took 1716.97 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 100.6 MB in the beginning and 131.1 MB in the end (delta: -30.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:21:15,261 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 14:21:15,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.32 ms. Allocated memory is still 143.1 MB. Free memory was 100.2 MB in the beginning and 90.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:21:15,265 INFO L168 Benchmark]: Boogie Preprocessor took 125.63 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 90.2 MB in the beginning and 178.2 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:21:15,267 INFO L168 Benchmark]: RCFGBuilder took 319.49 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 163.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:21:15,268 INFO L168 Benchmark]: TraceAbstraction took 980.27 ms. Allocated memory is still 200.3 MB. Free memory was 163.7 MB in the beginning and 131.1 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:21:15,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.32 ms. Allocated memory is still 143.1 MB. Free memory was 100.2 MB in the beginning and 90.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.63 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 90.2 MB in the beginning and 178.2 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 319.49 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 163.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 980.27 ms. Allocated memory is still 200.3 MB. Free memory was 163.7 MB in the beginning and 131.1 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] unsigned int array[10000]; [L25] unsigned int index = 0; [L26] unsigned int tmp = 0; VAL [array={2:0}, index=0, tmp=0] [L28] COND TRUE 1 [L29] index = __VERIFIER_nondet_uint() [L30] COND TRUE index >= 10000 VAL [array={2:0}, index=4294967295, tmp=0] [L37] EXPR tmp < 10000 && array[tmp] == tmp [L37] EXPR array[tmp] [L37] EXPR tmp < 10000 && array[tmp] == tmp VAL [array={2:0}, array[tmp]=4294967297, index=4294967295, tmp=0, tmp < 10000 && array[tmp] == tmp=0] [L37] CALL __VERIFIER_assert(tmp < 10000 && array[tmp] == tmp) VAL [\old(cond)=0] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L15] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...