/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/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:14:40,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:14:40,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:14:40,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:14:40,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:14:40,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:14:40,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:14:40,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:14:40,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:14:40,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:14:40,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:14:40,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:14:40,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:14:40,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:14:40,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:14:40,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:14:40,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:14:40,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:14:40,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:14:40,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:14:40,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:14:40,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:14:40,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:14:40,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:14:40,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:14:40,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:14:40,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:14:40,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:14:40,605 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 14:14:40,623 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:14:40,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:14:40,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:14:40,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:14:40,625 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:14:40,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:14:40,625 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:14:40,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:14:40,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:14:40,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:14:40,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:14:40,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:14:40,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:14:40,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:14:40,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:14:40,627 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:14:40,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:14:40,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:14:40,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:14:40,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:14:40,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:14:40,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:14:40,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:14:40,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:14:40,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:14:40,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:14:40,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:14:40,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:14:40,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:14:40,630 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 14:14:40,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:14:40,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:14:40,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:14:40,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:14:40,951 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:14:40,953 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-07-20 14:14:41,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf7d8c63/3721cd7b392c4116a41e53abe4017409/FLAG2a9f123d6 [2020-07-20 14:14:41,525 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:14:41,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condgf.c [2020-07-20 14:14:41,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf7d8c63/3721cd7b392c4116a41e53abe4017409/FLAG2a9f123d6 [2020-07-20 14:14:41,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf7d8c63/3721cd7b392c4116a41e53abe4017409 [2020-07-20 14:14:41,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:14:41,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:14:41,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:14:41,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:14:41,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:14:41,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:14:41" (1/1) ... [2020-07-20 14:14:41,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f165e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:41, skipping insertion in model container [2020-07-20 14:14:41,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:14:41" (1/1) ... [2020-07-20 14:14:41,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:14:41,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:14:42,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:14:42,205 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:14:42,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:14:42,245 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:14:42,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42 WrapperNode [2020-07-20 14:14:42,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:14:42,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:14:42,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:14:42,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:14:42,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (1/1) ... [2020-07-20 14:14:42,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:14:42,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:14:42,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:14:42,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:14:42,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (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 14:14:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:14:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:14:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 14:14:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 14:14:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:14:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:14:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 14:14:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 14:14:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 14:14:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:14:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 14:14:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:14:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 14:14:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 14:14:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 14:14:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 14:14:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 14:14:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:14:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:14:42,759 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:14:42,759 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 14:14:42,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:14:42 BoogieIcfgContainer [2020-07-20 14:14:42,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:14:42,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:14:42,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:14:42,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:14:42,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:14:41" (1/3) ... [2020-07-20 14:14:42,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0bbde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:14:42, skipping insertion in model container [2020-07-20 14:14:42,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:14:42" (2/3) ... [2020-07-20 14:14:42,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0bbde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:14:42, skipping insertion in model container [2020-07-20 14:14:42,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:14:42" (3/3) ... [2020-07-20 14:14:42,772 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-07-20 14:14:42,785 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:14:42,793 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:14:42,808 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:14:42,843 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:14:42,843 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:14:42,844 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:14:42,844 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:14:42,844 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:14:42,844 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:14:42,844 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:14:42,844 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:14:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-20 14:14:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-20 14:14:42,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:14:42,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:14:42,874 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:14:42,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:14:42,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-07-20 14:14:42,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:14:42,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353227443] [2020-07-20 14:14:42,888 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 14:14:42,996 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 14:14:42,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:14:43,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 14:14:43,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:14:43,090 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 14:14:43,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:14:43,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353227443] [2020-07-20 14:14:43,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:14:43,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 14:14:43,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124935775] [2020-07-20 14:14:43,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 14:14:43,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:14:43,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 14:14:43,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 14:14:43,118 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-07-20 14:14:43,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:14:43,275 INFO L93 Difference]: Finished difference Result 81 states and 112 transitions. [2020-07-20 14:14:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 14:14:43,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-20 14:14:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:14:43,289 INFO L225 Difference]: With dead ends: 81 [2020-07-20 14:14:43,289 INFO L226 Difference]: Without dead ends: 44 [2020-07-20 14:14:43,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 14:14:43,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-20 14:14:43,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-07-20 14:14:43,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-20 14:14:43,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-07-20 14:14:43,347 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-07-20 14:14:43,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:14:43,348 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-07-20 14:14:43,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 14:14:43,349 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-07-20 14:14:43,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 14:14:43,350 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:14:43,351 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] [2020-07-20 14:14:43,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:14:43,564 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:14:43,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:14:43,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-07-20 14:14:43,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:14:43,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805768512] [2020-07-20 14:14:43,566 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 14:14:43,628 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 14:14:43,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:14:43,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 14:14:43,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:14:43,702 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 11 treesize of output 7 [2020-07-20 14:14:43,702 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 14:14:43,717 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:43,718 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 14:14:43,719 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-07-20 14:14:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 14:14:43,754 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-07-20 14:14:43,756 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 14:14:43,772 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:43,773 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 14:14:43,773 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2020-07-20 14:14:43,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 14:14:43,913 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:43,914 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 54 [2020-07-20 14:14:43,916 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 14:14:43,982 INFO L624 ElimStorePlain]: treesize reduction 28, result has 62.2 percent of original size [2020-07-20 14:14:43,988 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-07-20 14:14:43,989 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:63, output treesize:46 [2020-07-20 14:14:44,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 14:14:44,187 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:44,188 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 26 [2020-07-20 14:14:44,189 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:14:44,193 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 14:14:44,226 INFO L624 ElimStorePlain]: treesize reduction 13, result has 68.3 percent of original size [2020-07-20 14:14:44,227 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 14:14:44,228 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:58, output treesize:10 [2020-07-20 14:14:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:14:44,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:14:47,876 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 14:14:47,886 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:47,887 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2020-07-20 14:14:47,892 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 14:14:47,911 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-20 14:14:47,913 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2020-07-20 14:14:47,919 INFO L440 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9], 1=[v_arrayElimCell_8]} [2020-07-20 14:14:47,926 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2020-07-20 14:14:47,927 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 14:14:47,931 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:47,942 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2020-07-20 14:14:47,943 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2020-07-20 14:14:47,949 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:47,949 INFO L544 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-07-20 14:14:47,954 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 14:14:47,955 INFO L544 ElimStorePlain]: Start of recursive call 2: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-07-20 14:14:47,984 INFO L624 ElimStorePlain]: treesize reduction 4, result has 89.5 percent of original size [2020-07-20 14:14:47,992 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 14:14:47,993 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:83, output treesize:7 [2020-07-20 14:14:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:14:48,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805768512] [2020-07-20 14:14:48,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:14:48,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2020-07-20 14:14:48,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761036149] [2020-07-20 14:14:48,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-20 14:14:48,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:14:48,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-20 14:14:48,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=266, Unknown=4, NotChecked=0, Total=342 [2020-07-20 14:14:48,030 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 19 states. [2020-07-20 14:14:52,078 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-07-20 14:14:58,625 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 43 [2020-07-20 14:14:59,905 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 45 [2020-07-20 14:15:02,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:15:02,702 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2020-07-20 14:15:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 14:15:02,704 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-07-20 14:15:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:15:02,708 INFO L225 Difference]: With dead ends: 80 [2020-07-20 14:15:02,708 INFO L226 Difference]: Without dead ends: 66 [2020-07-20 14:15:02,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=225, Invalid=701, Unknown=4, NotChecked=0, Total=930 [2020-07-20 14:15:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-20 14:15:02,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2020-07-20 14:15:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-20 14:15:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2020-07-20 14:15:02,740 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 31 [2020-07-20 14:15:02,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:15:02,740 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2020-07-20 14:15:02,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-20 14:15:02,740 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2020-07-20 14:15:02,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 14:15:02,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:15:02,744 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] [2020-07-20 14:15:02,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:15:02,946 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:15:02,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:15:02,947 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-07-20 14:15:02,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:15:02,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993563796] [2020-07-20 14:15:02,948 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:15:03,001 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:15:03,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 14:15:03,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 14:15:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 14:15:03,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 14:15:03,040 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 14:15:03,040 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 14:15:03,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:15:03,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:15:03 BoogieIcfgContainer [2020-07-20 14:15:03,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:15:03,295 INFO L168 Benchmark]: Toolchain (without parser) took 21372.68 ms. Allocated memory was 146.3 MB in the beginning and 244.8 MB in the end (delta: 98.6 MB). Free memory was 102.4 MB in the beginning and 146.9 MB in the end (delta: -44.5 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:15:03,295 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 146.3 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 14:15:03,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.26 ms. Allocated memory is still 146.3 MB. Free memory was 102.0 MB in the beginning and 91.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:15:03,297 INFO L168 Benchmark]: Boogie Preprocessor took 120.18 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 91.6 MB in the beginning and 180.3 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-20 14:15:03,298 INFO L168 Benchmark]: RCFGBuilder took 396.97 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 161.9 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:15:03,298 INFO L168 Benchmark]: TraceAbstraction took 20527.66 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 161.9 MB in the beginning and 146.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:15:03,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 146.3 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 322.26 ms. Allocated memory is still 146.3 MB. Free memory was 102.0 MB in the beginning and 91.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.18 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 91.6 MB in the beginning and 180.3 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.97 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 161.9 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20527.66 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 161.9 MB in the beginning and 146.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 57.0 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)=7, 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 sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={20539:0}] [L30] COND TRUE i