/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 DAGSIZE --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 22:12:55,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:12:55,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:12:55,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:12:55,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:12:55,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:12:55,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:12:55,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:12:55,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:12:55,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:12:55,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:12:55,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:12:55,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:12:55,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:12:55,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:12:55,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:12:55,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:12:55,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:12:55,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:12:55,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:12:55,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:12:55,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:12:55,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:12:55,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:12:55,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:12:55,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:12:55,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:12:55,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:12:55,816 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 22:12:55,831 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:12:55,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:12:55,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:12:55,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:12:55,833 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:12:55,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:12:55,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:12:55,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:12:55,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:12:55,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:12:55,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:12:55,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:12:55,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:12:55,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:12:55,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:12:55,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:12:55,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:12:55,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:12:55,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:12:55,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:12:55,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:12:55,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:12:55,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:12:55,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:12:55,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:12:55,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:12:55,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:12:55,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:12:55,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:12:55,838 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 -> DAGSIZE 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 22:12:56,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:12:56,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:12:56,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:12:56,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:12:56,158 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:12:56,159 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-07-20 22:12:56,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c358475a3/c10065ec9e5549e0adcec73acb9eb610/FLAG2a98c1c25 [2020-07-20 22:12:56,743 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:12:56,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condgf.c [2020-07-20 22:12:56,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c358475a3/c10065ec9e5549e0adcec73acb9eb610/FLAG2a98c1c25 [2020-07-20 22:12:57,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c358475a3/c10065ec9e5549e0adcec73acb9eb610 [2020-07-20 22:12:57,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:12:57,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:12:57,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:12:57,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:12:57,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:12:57,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e70ca17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57, skipping insertion in model container [2020-07-20 22:12:57,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:12:57,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:12:57,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:12:57,357 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:12:57,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:12:57,400 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:12:57,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57 WrapperNode [2020-07-20 22:12:57,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:12:57,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:12:57,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:12:57,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:12:57,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (1/1) ... [2020-07-20 22:12:57,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:12:57,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:12:57,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:12:57,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:12:57,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (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 22:12:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:12:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:12:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 22:12:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 22:12:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:12:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:12:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 22:12:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 22:12:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 22:12:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:12:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 22:12:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:12:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:12:57,922 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:12:57,923 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 22:12:57,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:12:57 BoogieIcfgContainer [2020-07-20 22:12:57,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:12:57,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:12:57,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:12:57,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:12:57,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:12:57" (1/3) ... [2020-07-20 22:12:57,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d396ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:12:57, skipping insertion in model container [2020-07-20 22:12:57,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:12:57" (2/3) ... [2020-07-20 22:12:57,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d396ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:12:57, skipping insertion in model container [2020-07-20 22:12:57,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:12:57" (3/3) ... [2020-07-20 22:12:57,940 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-07-20 22:12:57,955 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:12:57,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:12:57,985 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:12:58,021 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:12:58,022 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:12:58,022 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:12:58,022 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:12:58,022 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:12:58,022 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:12:58,023 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:12:58,023 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:12:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-20 22:12:58,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-20 22:12:58,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:12:58,058 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 22:12:58,058 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:12:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:12:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-07-20 22:12:58,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:12:58,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409451817] [2020-07-20 22:12:58,085 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 22:12:58,197 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:12:58,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:12:58,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:12:58,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:12:58,302 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 22:12:58,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:12:58,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409451817] [2020-07-20 22:12:58,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:12:58,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 22:12:58,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450772642] [2020-07-20 22:12:58,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 22:12:58,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:12:58,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 22:12:58,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 22:12:58,334 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-07-20 22:12:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:12:58,490 INFO L93 Difference]: Finished difference Result 81 states and 112 transitions. [2020-07-20 22:12:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 22:12:58,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-20 22:12:58,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:12:58,505 INFO L225 Difference]: With dead ends: 81 [2020-07-20 22:12:58,505 INFO L226 Difference]: Without dead ends: 44 [2020-07-20 22:12:58,510 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 22:12:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-20 22:12:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-07-20 22:12:58,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-20 22:12:58,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-07-20 22:12:58,567 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-07-20 22:12:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:12:58,568 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-07-20 22:12:58,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 22:12:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-07-20 22:12:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 22:12:58,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:12:58,570 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 22:12:58,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:12:58,786 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:12:58,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:12:58,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-07-20 22:12:58,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:12:58,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675260995] [2020-07-20 22:12:58,788 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 22:12:58,871 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:12:58,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:12:58,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 22:12:58,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:12:58,946 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 22:12:58,947 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 22:12:58,955 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 22:12:58,956 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 22:12:58,957 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-07-20 22:12:58,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 22:12:59,001 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 22:12:59,003 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 22:12:59,033 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 22:12:59,034 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 22:12:59,035 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-07-20 22:12:59,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 22:12:59,221 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 22:12:59,222 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 22:12:59,224 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 22:12:59,288 INFO L624 ElimStorePlain]: treesize reduction 28, result has 62.2 percent of original size [2020-07-20 22:12:59,300 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-07-20 22:12:59,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:63, output treesize:43 [2020-07-20 22:12:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 22:12:59,387 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 34 treesize of output 10 [2020-07-20 22:12:59,388 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 22:12:59,400 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 22:12:59,401 INFO L544 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 22:12:59,402 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:50, output treesize:10 [2020-07-20 22:12:59,431 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 22:12:59,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:13:09,147 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 28 [2020-07-20 22:13:09,191 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 22:13:09,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675260995] [2020-07-20 22:13:09,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:13:09,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-07-20 22:13:09,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207279944] [2020-07-20 22:13:09,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 22:13:09,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:13:09,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 22:13:09,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=192, Unknown=4, NotChecked=0, Total=240 [2020-07-20 22:13:09,197 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 16 states. [2020-07-20 22:13:16,710 WARN L193 SmtUtils]: Spent 5.47 s on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-07-20 22:13:21,983 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((main_~a~0.offset Int) (v_main_~i~0_30 Int)) (or (< (+ c_main_~i~0 1) (let ((.cse0 (store (select |c_#memory_int| c_main_~a~0.base) (+ (* c_main_~i~0 4) main_~a~0.offset) 2))) (+ (select .cse0 (+ main_~a~0.offset (* v_main_~i~0_30 4))) (select (select (store |c_#memory_int| c_main_~a~0.base .cse0) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|)))) (< v_main_~i~0_30 0) (< c_main_~i~0 v_main_~i~0_30))) (forall ((v_main_~i~0_30 Int)) (or (< v_main_~i~0_30 0) (< (+ c_main_~i~0 1) (+ (select (select |c_#memory_int| |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) (select (select |c_#memory_int| c_main_~a~0.base) (+ c_main_~a~0.offset (* v_main_~i~0_30 4))))) (< c_main_~i~0 v_main_~i~0_30)))) is different from false [2020-07-20 22:13:23,319 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_main_~i~0_25 Int) (main_~a~0.offset Int) (main_~a~0.base Int)) (let ((.cse0 (select (select |c_#memory_int| main_~a~0.base) (+ (* v_main_~i~0_25 4) main_~a~0.offset)))) (and (<= c_~N~0 (+ v_main_~i~0_25 1)) (= (select (select |c_#memory_int| |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) .cse0) (<= v_main_~i~0_25 0) (= 2 .cse0) (<= (+ main_~a~0.base 2) |c_main_~#sum~0.base|)))) (forall ((main_~a~0.offset Int) (v_main_~i~0_30 Int)) (or (< (+ c_main_~i~0 1) (let ((.cse1 (store (select |c_#memory_int| c_main_~a~0.base) (+ (* c_main_~i~0 4) main_~a~0.offset) 2))) (+ (select .cse1 (+ main_~a~0.offset (* v_main_~i~0_30 4))) (select (select (store |c_#memory_int| c_main_~a~0.base .cse1) |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|)))) (< v_main_~i~0_30 0) (< c_main_~i~0 v_main_~i~0_30))) (forall ((v_main_~i~0_30 Int)) (or (< v_main_~i~0_30 0) (<= c_~N~0 v_main_~i~0_30) (< c_~N~0 (+ (select (select |c_#memory_int| |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) (select (select |c_#memory_int| c_main_~a~0.base) (+ c_main_~a~0.offset (* v_main_~i~0_30 4))))))) (<= 2 |c_main_#t~mem7|) (<= c_~N~0 1) (forall ((v_main_~i~0_30 Int)) (or (< v_main_~i~0_30 0) (< (+ c_main_~i~0 1) (+ (select (select |c_#memory_int| |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|) (select (select |c_#memory_int| c_main_~a~0.base) (+ c_main_~a~0.offset (* v_main_~i~0_30 4))))) (< c_main_~i~0 v_main_~i~0_30))) (or (<= c_~N~0 c_main_~i~0) (< c_~N~0 (+ (select (select |c_#memory_int| c_main_~a~0.base) (+ (* c_main_~i~0 4) c_main_~a~0.offset)) (select (select |c_#memory_int| |c_main_~#sum~0.base|) |c_main_~#sum~0.offset|)))) (<= 1 c_~N~0)) is different from false [2020-07-20 22:13:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:13:23,535 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2020-07-20 22:13:23,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 22:13:23,537 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2020-07-20 22:13:23,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:13:23,539 INFO L225 Difference]: With dead ends: 67 [2020-07-20 22:13:23,540 INFO L226 Difference]: Without dead ends: 53 [2020-07-20 22:13:23,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=89, Invalid=332, Unknown=7, NotChecked=78, Total=506 [2020-07-20 22:13:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-07-20 22:13:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2020-07-20 22:13:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-20 22:13:23,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2020-07-20 22:13:23,554 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 31 [2020-07-20 22:13:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:13:23,555 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2020-07-20 22:13:23,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 22:13:23,555 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-07-20 22:13:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 22:13:23,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:13:23,556 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 22:13:23,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:13:23,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:13:23,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:13:23,759 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-07-20 22:13:23,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:13:23,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765099152] [2020-07-20 22:13:23,761 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 22:13:23,818 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:13:23,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 22:13:23,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 22:13:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 22:13:23,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 22:13:23,861 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 22:13:23,861 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 22:13:24,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:13:24,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:13:24 BoogieIcfgContainer [2020-07-20 22:13:24,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:13:24,120 INFO L168 Benchmark]: Toolchain (without parser) took 27012.73 ms. Allocated memory was 138.4 MB in the beginning and 235.9 MB in the end (delta: 97.5 MB). Free memory was 103.4 MB in the beginning and 90.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:13:24,121 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:13:24,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.59 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 91.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:13:24,123 INFO L168 Benchmark]: Boogie Preprocessor took 139.62 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 91.9 MB in the beginning and 180.3 MB in the end (delta: -88.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:13:24,123 INFO L168 Benchmark]: RCFGBuilder took 386.42 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 22:13:24,124 INFO L168 Benchmark]: TraceAbstraction took 26188.34 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 161.9 MB in the beginning and 90.6 MB in the end (delta: 71.4 MB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:13:24,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.59 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 91.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.62 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 91.9 MB in the beginning and 180.3 MB in the end (delta: -88.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.42 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 26188.34 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 161.9 MB in the beginning and 90.6 MB in the end (delta: 71.4 MB). Peak memory consumption was 104.4 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={842:0}] [L30] COND TRUE i