/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 2 -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 [2020-07-21 13:59:36,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:59:36,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:59:36,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:59:36,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:59:36,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:59:36,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:59:36,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:59:36,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:59:36,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:59:36,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:59:36,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:59:36,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:59:36,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:59:36,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:59:36,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:59:36,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:59:36,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:59:36,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:59:36,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:59:36,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:59:36,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:59:36,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:59:36,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:59:36,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:59:36,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:59:36,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:59:36,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:59:36,178 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 [2020-07-21 13:59:36,223 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:59:36,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:59:36,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:59:36,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:59:36,225 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:59:36,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:59:36,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:59:36,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:59:36,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:59:36,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:59:36,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:59:36,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:59:36,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:59:36,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:59:36,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:59:36,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:59:36,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:59:36,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:59:36,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:59:36,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:59:36,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:59:36,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:59:36,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:59:36,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:59:36,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:59:36,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:59:36,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:59:36,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:59:36,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:59:36,234 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 -> 2 [2020-07-21 13:59:36,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:59:36,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:59:36,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:59:36,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:59:36,557 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:59:36,566 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-07-21 13:59:36,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db0921715/d56dd62e52d44abe9557713225474a5e/FLAG20597fd60 [2020-07-21 13:59:37,118 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:59:37,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condgf.c [2020-07-21 13:59:37,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db0921715/d56dd62e52d44abe9557713225474a5e/FLAG20597fd60 [2020-07-21 13:59:37,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db0921715/d56dd62e52d44abe9557713225474a5e [2020-07-21 13:59:37,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:59:37,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:59:37,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:59:37,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:59:37,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:59:37,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25286490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37, skipping insertion in model container [2020-07-21 13:59:37,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:59:37,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:59:37,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:59:37,809 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:59:37,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:59:37,853 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:59:37,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37 WrapperNode [2020-07-21 13:59:37,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:59:37,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:59:37,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:59:37,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:59:37,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (1/1) ... [2020-07-21 13:59:37,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:59:37,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:59:37,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:59:37,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:59:37,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (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 [2020-07-21 13:59:38,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:59:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:59:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 13:59:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 13:59:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:59:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:59:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 13:59:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 13:59:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 13:59:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 13:59:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 13:59:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:59:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:59:38,459 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:59:38,460 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 13:59:38,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:59:38 BoogieIcfgContainer [2020-07-21 13:59:38,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:59:38,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:59:38,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:59:38,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:59:38,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:59:37" (1/3) ... [2020-07-21 13:59:38,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29754d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:59:38, skipping insertion in model container [2020-07-21 13:59:38,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:59:37" (2/3) ... [2020-07-21 13:59:38,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29754d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:59:38, skipping insertion in model container [2020-07-21 13:59:38,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:59:38" (3/3) ... [2020-07-21 13:59:38,475 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-07-21 13:59:38,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:59:38,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:59:38,507 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:59:38,530 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:59:38,530 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:59:38,531 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:59:38,531 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:59:38,531 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:59:38,531 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:59:38,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:59:38,532 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:59:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-21 13:59:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-21 13:59:38,557 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:59:38,558 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] [2020-07-21 13:59:38,559 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:59:38,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:59:38,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-07-21 13:59:38,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:59:38,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610178316] [2020-07-21 13:59:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:59:38,701 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:59:38,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:59:38,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 13:59:38,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:59:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:59:38,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:59:38,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610178316] [2020-07-21 13:59:38,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:59:38,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 13:59:38,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850618426] [2020-07-21 13:59:38,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:59:38,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:59:38,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:59:38,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 13:59:38,827 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-07-21 13:59:38,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:59:38,993 INFO L93 Difference]: Finished difference Result 81 states and 112 transitions. [2020-07-21 13:59:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:59:38,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-21 13:59:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:59:39,007 INFO L225 Difference]: With dead ends: 81 [2020-07-21 13:59:39,008 INFO L226 Difference]: Without dead ends: 44 [2020-07-21 13:59:39,012 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 [2020-07-21 13:59:39,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-21 13:59:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-07-21 13:59:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-21 13:59:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-07-21 13:59:39,071 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-07-21 13:59:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:59:39,072 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-07-21 13:59:39,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:59:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-07-21 13:59:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-21 13:59:39,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:59:39,074 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] [2020-07-21 13:59:39,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:59:39,288 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:59:39,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:59:39,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-07-21 13:59:39,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:59:39,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670929719] [2020-07-21 13:59:39,292 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:59:39,366 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:59:39,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:59:39,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-21 13:59:39,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:59:39,444 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 [2020-07-21 13:59:39,446 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 13:59:39,473 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:39,474 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 13:59:39,474 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-07-21 13:59:39,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 13:59:39,537 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 [2020-07-21 13:59:39,539 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 13:59:39,570 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:39,571 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 13:59:39,571 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2020-07-21 13:59:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 13:59:39,688 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:39,688 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 40 treesize of output 46 [2020-07-21 13:59:39,693 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 13:59:39,736 INFO L624 ElimStorePlain]: treesize reduction 20, result has 64.9 percent of original size [2020-07-21 13:59:39,739 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 13:59:39,740 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:37 [2020-07-21 13:59:39,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 13:59:39,918 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:39,918 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 30 treesize of output 22 [2020-07-21 13:59:39,920 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-21 13:59:39,948 INFO L624 ElimStorePlain]: treesize reduction 9, result has 71.9 percent of original size [2020-07-21 13:59:39,949 INFO L544 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 13:59:39,950 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:49, output treesize:10 [2020-07-21 13:59:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:59:39,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:59:43,971 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 13:59:43,999 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 13:59:44,007 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:44,008 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 23 treesize of output 24 [2020-07-21 13:59:44,016 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 13:59:44,022 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 13:59:44,024 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 24 treesize of output 20 [2020-07-21 13:59:44,032 INFO L440 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9], 1=[v_arrayElimCell_8]} [2020-07-21 13:59:44,050 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 [2020-07-21 13:59:44,050 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 13:59:44,053 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:44,061 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 32 treesize of output 26 [2020-07-21 13:59:44,062 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2020-07-21 13:59:44,077 INFO L624 ElimStorePlain]: treesize reduction 9, result has 57.1 percent of original size [2020-07-21 13:59:44,077 INFO L544 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-07-21 13:59:44,083 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 13:59:44,083 INFO L544 ElimStorePlain]: Start of recursive call 2: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-07-21 13:59:44,109 INFO L624 ElimStorePlain]: treesize reduction 5, result has 82.8 percent of original size [2020-07-21 13:59:44,113 INFO L544 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 13:59:44,113 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:70, output treesize:11 [2020-07-21 13:59:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:59:44,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670929719] [2020-07-21 13:59:44,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:59:44,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2020-07-21 13:59:44,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456751250] [2020-07-21 13:59:44,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-21 13:59:44,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:59:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-21 13:59:44,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=257, Unknown=3, NotChecked=0, Total=342 [2020-07-21 13:59:44,147 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 19 states. [2020-07-21 13:59:58,649 WARN L193 SmtUtils]: Spent 4.86 s on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 13:59:58,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:59:58,958 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2020-07-21 13:59:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-21 13:59:58,959 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2020-07-21 13:59:58,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:59:58,962 INFO L225 Difference]: With dead ends: 78 [2020-07-21 13:59:58,963 INFO L226 Difference]: Without dead ends: 64 [2020-07-21 13:59:58,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=278, Invalid=711, Unknown=3, NotChecked=0, Total=992 [2020-07-21 13:59:58,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-21 13:59:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2020-07-21 13:59:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-21 13:59:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2020-07-21 13:59:58,998 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 31 [2020-07-21 13:59:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:59:58,999 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2020-07-21 13:59:58,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-21 13:59:58,999 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-07-21 13:59:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-21 13:59:59,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:59:59,003 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] [2020-07-21 13:59:59,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:59:59,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:59:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:59:59,219 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-07-21 13:59:59,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:59:59,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850399204] [2020-07-21 13:59:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:59:59,277 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:59:59,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 13:59:59,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 13:59:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 13:59:59,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 13:59:59,313 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 13:59:59,314 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 13:59:59,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:59:59,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:59:59 BoogieIcfgContainer [2020-07-21 13:59:59,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:59:59,572 INFO L168 Benchmark]: Toolchain (without parser) took 22089.94 ms. Allocated memory was 144.2 MB in the beginning and 249.6 MB in the end (delta: 105.4 MB). Free memory was 100.7 MB in the beginning and 170.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:59:59,572 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 144.2 MB. Free memory is still 118.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 13:59:59,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.31 ms. Allocated memory is still 144.2 MB. Free memory was 100.3 MB in the beginning and 89.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-21 13:59:59,574 INFO L168 Benchmark]: Boogie Preprocessor took 134.13 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 89.8 MB in the beginning and 178.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 13:59:59,575 INFO L168 Benchmark]: RCFGBuilder took 475.59 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 160.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:59:59,576 INFO L168 Benchmark]: TraceAbstraction took 21103.48 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 160.5 MB in the beginning and 170.1 MB in the end (delta: -9.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2020-07-21 13:59:59,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 144.2 MB. Free memory is still 118.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.31 ms. Allocated memory is still 144.2 MB. Free memory was 100.3 MB in the beginning and 89.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.13 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 89.8 MB in the beginning and 178.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.59 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 160.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21103.48 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 160.5 MB in the beginning and 170.1 MB in the end (delta: -9.6 MB). Peak memory consumption was 38.6 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)=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={15923:0}] [L30] COND TRUE i