/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/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:37:30,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:37:30,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:37:31,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:37:31,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:37:31,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:37:31,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:37:31,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:37:31,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:37:31,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:37:31,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:37:31,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:37:31,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:37:31,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:37:31,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:37:31,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:37:31,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:37:31,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:37:31,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:37:31,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:37:31,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:37:31,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:37:31,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:37:31,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:37:31,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 23:37:31,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 23:37:31,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 23:37:31,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 23:37:31,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 23:37:31,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 23:37:31,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 23:37:31,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 23:37:31,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 23:37:31,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 23:37:31,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 23:37:31,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 23:37:31,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 23:37:31,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 23:37:31,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:37:31,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:37:31,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:37:31,035 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 23:37:31,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:37:31,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:37:31,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:37:31,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:37:31,052 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:37:31,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:37:31,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:37:31,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:37:31,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:37:31,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:37:31,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:37:31,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:37:31,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:37:31,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:37:31,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:37:31,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:37:31,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:37:31,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:37:31,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:37:31,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:37:31,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:37:31,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:37:31,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:37:31,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:37:31,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:37:31,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:37:31,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:37:31,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:37:31,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:37:31,057 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 23:37:31,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:37:31,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:37:31,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:37:31,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:37:31,359 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:37:31,360 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-07-19 23:37:31,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd61b6bb/3e3bd582d55e4c949549df06233d1828/FLAGe8ef47436 [2020-07-19 23:37:31,849 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:37:31,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp5f.c [2020-07-19 23:37:31,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd61b6bb/3e3bd582d55e4c949549df06233d1828/FLAGe8ef47436 [2020-07-19 23:37:32,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd61b6bb/3e3bd582d55e4c949549df06233d1828 [2020-07-19 23:37:32,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:37:32,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:37:32,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:32,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:37:32,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:37:32,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34046307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32, skipping insertion in model container [2020-07-19 23:37:32,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:37:32,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:37:32,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:32,490 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:37:32,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:37:32,531 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:37:32,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32 WrapperNode [2020-07-19 23:37:32,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:37:32,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:37:32,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:37:32,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:37:32,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (1/1) ... [2020-07-19 23:37:32,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:37:32,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:37:32,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:37:32,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:37:32,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (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 23:37:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:37:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:37:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 23:37:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:37:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:37:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:37:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:37:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 23:37:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:37:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:37:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 23:37:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:37:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 23:37:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 23:37:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:37:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:37:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:37:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:37:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:37:32,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:37:32,995 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 23:37:33,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:33 BoogieIcfgContainer [2020-07-19 23:37:33,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:37:33,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:37:33,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:37:33,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:37:33,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:37:32" (1/3) ... [2020-07-19 23:37:33,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6a6df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:33, skipping insertion in model container [2020-07-19 23:37:33,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:37:32" (2/3) ... [2020-07-19 23:37:33,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6a6df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:33, skipping insertion in model container [2020-07-19 23:37:33,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:33" (3/3) ... [2020-07-19 23:37:33,012 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-07-19 23:37:33,022 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:37:33,030 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:37:33,058 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:37:33,113 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:37:33,113 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:37:33,113 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:37:33,113 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:37:33,114 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:37:33,114 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:37:33,114 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:37:33,114 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:37:33,133 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-19 23:37:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-19 23:37:33,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:33,141 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] [2020-07-19 23:37:33,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:33,147 INFO L82 PathProgramCache]: Analyzing trace with hash -976607933, now seen corresponding path program 1 times [2020-07-19 23:37:33,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:33,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651075516] [2020-07-19 23:37:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61f93b0f [2020-07-19 23:37:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:33,383 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 23:37:33,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651075516] [2020-07-19 23:37:33,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:33,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 23:37:33,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201738975] [2020-07-19 23:37:33,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:37:33,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:33,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:37:33,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 23:37:33,411 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-07-19 23:37:33,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:33,534 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-07-19 23:37:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:37:33,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-19 23:37:33,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:33,546 INFO L225 Difference]: With dead ends: 70 [2020-07-19 23:37:33,546 INFO L226 Difference]: Without dead ends: 33 [2020-07-19 23:37:33,549 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 23:37:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-19 23:37:33,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-19 23:37:33,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-19 23:37:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-07-19 23:37:33,593 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 27 [2020-07-19 23:37:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:33,593 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-07-19 23:37:33,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:37:33,594 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-19 23:37:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-19 23:37:33,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:33,595 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] [2020-07-19 23:37:33,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:37:33,596 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:33,597 INFO L82 PathProgramCache]: Analyzing trace with hash -714487667, now seen corresponding path program 1 times [2020-07-19 23:37:33,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:33,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003548050] [2020-07-19 23:37:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61f93b0f [2020-07-19 23:37:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:37:33,718 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 23:37:33,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003548050] [2020-07-19 23:37:33,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:37:33,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 23:37:33,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897046968] [2020-07-19 23:37:33,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:37:33,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:37:33,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:37:33,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:37:33,723 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-07-19 23:37:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:37:33,874 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-07-19 23:37:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:37:33,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-19 23:37:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:37:33,877 INFO L225 Difference]: With dead ends: 61 [2020-07-19 23:37:33,877 INFO L226 Difference]: Without dead ends: 43 [2020-07-19 23:37:33,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:37:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-19 23:37:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2020-07-19 23:37:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-19 23:37:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-07-19 23:37:33,889 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27 [2020-07-19 23:37:33,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:37:33,889 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-07-19 23:37:33,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:37:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-07-19 23:37:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-19 23:37:33,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:37:33,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:37:33,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:37:33,892 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:37:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:37:33,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1064141225, now seen corresponding path program 1 times [2020-07-19 23:37:33,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:37:33,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988254025] [2020-07-19 23:37:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61f93b0f [2020-07-19 23:37:33,911 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-19 23:37:33,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471436147] [2020-07-19 23:37:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3810f5e6 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 23:37:34,033 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3810f5e6 issued 4 check-sat command(s) [2020-07-19 23:37:34,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-19 23:37:34,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:37:34,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:37:34,110 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:37:34,111 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:37:34,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:37:34,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:37:34 BoogieIcfgContainer [2020-07-19 23:37:34,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:37:34,374 INFO L168 Benchmark]: Toolchain (without parser) took 2094.75 ms. Allocated memory was 140.0 MB in the beginning and 232.8 MB in the end (delta: 92.8 MB). Free memory was 101.2 MB in the beginning and 199.7 MB in the end (delta: -98.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:34,375 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-19 23:37:34,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.68 ms. Allocated memory is still 140.0 MB. Free memory was 100.8 MB in the beginning and 89.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:34,377 INFO L168 Benchmark]: Boogie Preprocessor took 127.13 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 89.9 MB in the beginning and 179.1 MB in the end (delta: -89.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:34,378 INFO L168 Benchmark]: RCFGBuilder took 341.56 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 159.5 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:34,379 INFO L168 Benchmark]: TraceAbstraction took 1368.49 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 159.5 MB in the beginning and 199.7 MB in the end (delta: -40.2 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:37:34,384 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.68 ms. Allocated memory is still 140.0 MB. Free memory was 100.8 MB in the beginning and 89.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.13 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 89.9 MB in the beginning and 179.1 MB in the end (delta: -89.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 341.56 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 159.5 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1368.49 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 159.5 MB in the beginning and 199.7 MB in the end (delta: -40.2 MB). Peak memory consumption was 81.6 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)=4, 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); [L27] long long sum[1]; [L29] sum[0] = 1 [L30] i=0 VAL [\old(N)=0, a={1:0}, i=0, malloc(sizeof(long long)*N)={1:0}, N=1, sum={3:0}] [L30] COND TRUE i