/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 BIGGEST_EQUIVALENCE_CLASS --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/condaf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 06:04:00,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 06:04:00,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 06:04:00,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 06:04:00,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 06:04:00,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 06:04:00,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 06:04:00,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 06:04:00,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 06:04:00,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 06:04:00,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 06:04:00,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 06:04:00,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 06:04:00,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 06:04:00,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 06:04:00,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 06:04:00,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 06:04:00,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 06:04:00,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 06:04:00,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 06:04:00,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 06:04:00,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 06:04:00,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 06:04:00,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 06:04:00,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 06:04:00,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 06:04:00,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 06:04:00,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 06:04:00,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 06:04:00,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 06:04:00,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 06:04:00,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 06:04:00,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 06:04:00,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 06:04:00,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 06:04:00,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 06:04:00,457 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 06:04:00,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 06:04:00,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 06:04:00,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 06:04:00,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 06:04:00,483 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 06:04:00,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 06:04:00,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 06:04:00,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 06:04:00,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 06:04:00,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 06:04:00,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 06:04:00,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 06:04:00,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 06:04:00,486 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 06:04:00,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 06:04:00,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 06:04:00,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 06:04:00,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 06:04:00,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 06:04:00,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 06:04:00,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 06:04:00,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 06:04:00,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 06:04:00,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 06:04:00,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 06:04:00,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 06:04:00,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 06:04:00,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 06:04:00,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 06:04:00,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-20 06:04:00,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 06:04:00,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 06:04:00,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 06:04:00,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 06:04:00,810 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 06:04:00,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condaf.c [2020-07-20 06:04:00,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf3cc1a90/0f463f0175db4b799d48c1c606749799/FLAGf6c6eaee7 [2020-07-20 06:04:01,349 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 06:04:01,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c [2020-07-20 06:04:01,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf3cc1a90/0f463f0175db4b799d48c1c606749799/FLAGf6c6eaee7 [2020-07-20 06:04:01,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf3cc1a90/0f463f0175db4b799d48c1c606749799 [2020-07-20 06:04:01,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 06:04:01,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 06:04:01,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 06:04:01,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 06:04:01,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 06:04:01,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:04:01" (1/1) ... [2020-07-20 06:04:01,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bef7c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:01, skipping insertion in model container [2020-07-20 06:04:01,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:04:01" (1/1) ... [2020-07-20 06:04:01,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 06:04:01,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 06:04:01,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:04:01,985 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 06:04:02,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:04:02,027 INFO L208 MainTranslator]: Completed translation [2020-07-20 06:04:02,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02 WrapperNode [2020-07-20 06:04:02,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 06:04:02,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 06:04:02,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 06:04:02,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 06:04:02,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (1/1) ... [2020-07-20 06:04:02,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 06:04:02,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 06:04:02,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 06:04:02,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 06:04:02,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (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 06:04:02,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 06:04:02,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 06:04:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 06:04:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 06:04:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 06:04:02,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 06:04:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 06:04:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 06:04:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 06:04:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 06:04:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 06:04:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 06:04:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 06:04:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 06:04:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 06:04:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 06:04:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 06:04:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 06:04:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 06:04:02,551 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 06:04:02,552 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-20 06:04:02,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:04:02 BoogieIcfgContainer [2020-07-20 06:04:02,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 06:04:02,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 06:04:02,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 06:04:02,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 06:04:02,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:04:01" (1/3) ... [2020-07-20 06:04:02,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d5a89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:04:02, skipping insertion in model container [2020-07-20 06:04:02,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:04:02" (2/3) ... [2020-07-20 06:04:02,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d5a89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:04:02, skipping insertion in model container [2020-07-20 06:04:02,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:04:02" (3/3) ... [2020-07-20 06:04:02,566 INFO L109 eAbstractionObserver]: Analyzing ICFG condaf.c [2020-07-20 06:04:02,578 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 06:04:02,586 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 06:04:02,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 06:04:02,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 06:04:02,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 06:04:02,630 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 06:04:02,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 06:04:02,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 06:04:02,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 06:04:02,630 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 06:04:02,630 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 06:04:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-07-20 06:04:02,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 06:04:02,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:04:02,662 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] [2020-07-20 06:04:02,663 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:04:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:04:02,668 INFO L82 PathProgramCache]: Analyzing trace with hash -88121349, now seen corresponding path program 1 times [2020-07-20 06:04:02,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:04:02,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017494060] [2020-07-20 06:04:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f92f54c [2020-07-20 06:04:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:02,876 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 06:04:02,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017494060] [2020-07-20 06:04:02,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:04:02,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 06:04:02,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5588567] [2020-07-20 06:04:02,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:04:02,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:04:02,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:04:02,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 06:04:02,899 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-07-20 06:04:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:04:03,030 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2020-07-20 06:04:03,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:04:03,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-20 06:04:03,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:04:03,043 INFO L225 Difference]: With dead ends: 60 [2020-07-20 06:04:03,043 INFO L226 Difference]: Without dead ends: 28 [2020-07-20 06:04:03,050 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 [2020-07-20 06:04:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-20 06:04:03,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-20 06:04:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-20 06:04:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-07-20 06:04:03,096 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 23 [2020-07-20 06:04:03,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:04:03,097 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-07-20 06:04:03,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:04:03,097 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-07-20 06:04:03,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 06:04:03,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:04:03,099 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] [2020-07-20 06:04:03,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 06:04:03,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:04:03,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:04:03,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1099238599, now seen corresponding path program 1 times [2020-07-20 06:04:03,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:04:03,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80433908] [2020-07-20 06:04:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f92f54c [2020-07-20 06:04:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:03,241 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 06:04:03,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80433908] [2020-07-20 06:04:03,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:04:03,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:04:03,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905341393] [2020-07-20 06:04:03,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:04:03,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:04:03,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:04:03,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:04:03,246 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2020-07-20 06:04:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:04:03,385 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-07-20 06:04:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 06:04:03,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-20 06:04:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:04:03,387 INFO L225 Difference]: With dead ends: 48 [2020-07-20 06:04:03,387 INFO L226 Difference]: Without dead ends: 35 [2020-07-20 06:04:03,388 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 [2020-07-20 06:04:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-20 06:04:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-07-20 06:04:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-20 06:04:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-07-20 06:04:03,397 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 23 [2020-07-20 06:04:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:04:03,397 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-07-20 06:04:03,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:04:03,398 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-07-20 06:04:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 06:04:03,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:04:03,399 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] [2020-07-20 06:04:03,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 06:04:03,400 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:04:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:04:03,400 INFO L82 PathProgramCache]: Analyzing trace with hash 188437731, now seen corresponding path program 1 times [2020-07-20 06:04:03,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:04:03,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248033023] [2020-07-20 06:04:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f92f54c [2020-07-20 06:04:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:04:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 06:04:03,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248033023] [2020-07-20 06:04:03,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947723303] [2020-07-20 06:04:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7653a063 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 [2020-07-20 06:04:03,819 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7653a063 issued 2 check-sat command(s) [2020-07-20 06:04:03,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 06:04:03,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 06:04:03,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 06:04:03,944 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-07-20 06:04:03,944 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 06:04:03,956 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 06:04:03,956 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 06:04:03,957 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-07-20 06:04:04,112 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 06:04:04,113 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2020-07-20 06:04:04,116 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 06:04:04,120 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 06:04:04,140 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 06:04:04,144 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 06:04:04,146 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-20 06:04:04,147 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:37, output treesize:31 [2020-07-20 06:04:04,148 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 06:04:04,194 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 06:04:04,198 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 06:04:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 06:04:04,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 06:04:04,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-07-20 06:04:04,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925496601] [2020-07-20 06:04:04,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-20 06:04:04,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:04:04,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-20 06:04:04,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-07-20 06:04:04,289 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 17 states. [2020-07-20 06:04:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:04:05,002 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2020-07-20 06:04:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 06:04:05,003 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-07-20 06:04:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:04:05,005 INFO L225 Difference]: With dead ends: 54 [2020-07-20 06:04:05,005 INFO L226 Difference]: Without dead ends: 41 [2020-07-20 06:04:05,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2020-07-20 06:04:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-20 06:04:05,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2020-07-20 06:04:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-20 06:04:05,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-20 06:04:05,016 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 30 [2020-07-20 06:04:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:04:05,017 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-20 06:04:05,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-20 06:04:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-20 06:04:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 06:04:05,019 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:04:05,019 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] [2020-07-20 06:04:05,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-20 06:04:05,234 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:04:05,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:04:05,235 INFO L82 PathProgramCache]: Analyzing trace with hash 446603169, now seen corresponding path program 1 times [2020-07-20 06:04:05,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:04:05,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388903112] [2020-07-20 06:04:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f92f54c [2020-07-20 06:04:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 06:04:05,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 06:04:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 06:04:05,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 06:04:05,390 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 06:04:05,390 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 06:04:05,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 06:04:05,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:04:05 BoogieIcfgContainer [2020-07-20 06:04:05,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 06:04:05,466 INFO L168 Benchmark]: Toolchain (without parser) took 3734.49 ms. Allocated memory was 138.9 MB in the beginning and 246.4 MB in the end (delta: 107.5 MB). Free memory was 103.7 MB in the beginning and 198.9 MB in the end (delta: -95.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-07-20 06:04:05,467 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 06:04:05,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.23 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 92.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-20 06:04:05,469 INFO L168 Benchmark]: Boogie Preprocessor took 139.45 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 180.4 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-07-20 06:04:05,470 INFO L168 Benchmark]: RCFGBuilder took 388.90 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 162.7 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-07-20 06:04:05,471 INFO L168 Benchmark]: TraceAbstraction took 2905.24 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 162.7 MB in the beginning and 198.9 MB in the end (delta: -36.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2020-07-20 06:04:05,475 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.23 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 92.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.45 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 180.4 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 388.90 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 162.7 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2905.24 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 162.7 MB in the beginning and 198.9 MB in the end (delta: -36.3 MB). Peak memory consumption was 7.2 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)=6, 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] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-2:0}, i=0, malloc(sizeof(int)*N)={-2:0}, N=1, sum={3:0}] [L30] COND TRUE i