/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/modnf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:28:36,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:28:36,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:28:36,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:28:36,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:28:36,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:28:36,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:28:36,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:28:36,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:28:36,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:28:36,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:28:36,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:28:36,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:28:36,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:28:36,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:28:36,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:28:36,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:28:36,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:28:36,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:28:36,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:28:36,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:28:36,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:28:36,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:28:36,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:28:36,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:28:36,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:28:36,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:28:36,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:28:36,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:28:36,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:28:36,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:28:36,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:28:36,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:28:36,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:28:36,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:28:36,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:28:36,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:28:36,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:28:36,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:28:36,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:28:36,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:28:36,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:28:36,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:28:36,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:28:36,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:28:36,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:28:36,680 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:28:36,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:28:36,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:28:36,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:28:36,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:28:36,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:28:36,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:28:36,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:28:36,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:28:36,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:28:36,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:28:36,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:28:36,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:28:36,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:28:36,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:28:36,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:28:36,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:28:36,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:28:36,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:28:36,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:28:36,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:28:36,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:28:36,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:28:36,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:28:36,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:28:36,687 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:28:37,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:28:37,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:28:37,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:28:37,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:28:37,232 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:28:37,233 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modnf.c [2020-09-24 18:28:37,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b312bb6e/f646218ee60e4f9da2cc65080850f6d5/FLAG32a26b4dd [2020-09-24 18:28:37,838 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:28:37,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/modnf.c [2020-09-24 18:28:37,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b312bb6e/f646218ee60e4f9da2cc65080850f6d5/FLAG32a26b4dd [2020-09-24 18:28:38,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b312bb6e/f646218ee60e4f9da2cc65080850f6d5 [2020-09-24 18:28:38,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:28:38,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:28:38,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:28:38,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:28:38,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:28:38,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38, skipping insertion in model container [2020-09-24 18:28:38,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:28:38,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:28:38,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:28:38,514 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:28:38,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:28:38,559 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:28:38,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38 WrapperNode [2020-09-24 18:28:38,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:28:38,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:28:38,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:28:38,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:28:38,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... [2020-09-24 18:28:38,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:28:38,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:28:38,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:28:38,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:28:38,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 18:28:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:28:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:28:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:28:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 18:28:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:28:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:28:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:28:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:28:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:28:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:28:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:28:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:28:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:28:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:28:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:28:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:28:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:28:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:28:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:28:39,098 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:28:39,099 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 18:28:39,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:28:39 BoogieIcfgContainer [2020-09-24 18:28:39,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:28:39,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:28:39,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:28:39,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:28:39,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:28:38" (1/3) ... [2020-09-24 18:28:39,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a41d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:28:39, skipping insertion in model container [2020-09-24 18:28:39,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:38" (2/3) ... [2020-09-24 18:28:39,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a41d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:28:39, skipping insertion in model container [2020-09-24 18:28:39,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:28:39" (3/3) ... [2020-09-24 18:28:39,114 INFO L109 eAbstractionObserver]: Analyzing ICFG modnf.c [2020-09-24 18:28:39,136 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:28:39,150 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:28:39,174 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:28:39,214 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:28:39,214 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:28:39,214 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:28:39,214 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:28:39,214 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:28:39,214 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:28:39,215 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:28:39,215 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:28:39,236 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-09-24 18:28:39,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 18:28:39,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:39,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:28:39,246 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:39,252 INFO L82 PathProgramCache]: Analyzing trace with hash 864246722, now seen corresponding path program 1 times [2020-09-24 18:28:39,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:39,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844602007] [2020-09-24 18:28:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:39,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:40,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:28:40,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:28:40,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-09-24 18:28:40,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 18:28:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:28:40,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:28:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:40,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:40,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:28:40,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:40,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:28:40,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:40,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:40,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:40,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 18:28:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:40,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:40,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:28:40,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:28:40,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:40,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:28:40,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844602007] [2020-09-24 18:28:40,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:28:40,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:28:40,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278962890] [2020-09-24 18:28:40,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:28:40,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:28:40,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:28:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:28:40,215 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 3 states. [2020-09-24 18:28:40,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:28:40,375 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2020-09-24 18:28:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:28:40,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-24 18:28:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:28:40,391 INFO L225 Difference]: With dead ends: 105 [2020-09-24 18:28:40,391 INFO L226 Difference]: Without dead ends: 52 [2020-09-24 18:28:40,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:28:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-24 18:28:40,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-24 18:28:40,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 18:28:40,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-09-24 18:28:40,448 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 33 [2020-09-24 18:28:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:28:40,449 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-09-24 18:28:40,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:28:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-09-24 18:28:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 18:28:40,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:40,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:28:40,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:28:40,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:40,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:40,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1269072019, now seen corresponding path program 1 times [2020-09-24 18:28:40,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:40,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244394271] [2020-09-24 18:28:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:40,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:40,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:40,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 18:28:40,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:28:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-24 18:28:40,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:28:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 18:28:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 18:28:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:28:41,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:28:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:41,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:41,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:41,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:28:41,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:28:41,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:41,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:41,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 18:28:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:41,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:28:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:28:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:28:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:28:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:28:41,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244394271] [2020-09-24 18:28:41,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:28:41,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:28:41,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483708391] [2020-09-24 18:28:41,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:28:41,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:28:41,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:28:41,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:28:41,102 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 5 states. [2020-09-24 18:28:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:28:41,324 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-09-24 18:28:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:28:41,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-24 18:28:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:28:41,326 INFO L225 Difference]: With dead ends: 77 [2020-09-24 18:28:41,327 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 18:28:41,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:28:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 18:28:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2020-09-24 18:28:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 18:28:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-09-24 18:28:41,338 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 33 [2020-09-24 18:28:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:28:41,339 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-09-24 18:28:41,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:28:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-09-24 18:28:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-24 18:28:41,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:41,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:28:41,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:28:41,342 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:41,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1661969402, now seen corresponding path program 1 times [2020-09-24 18:28:41,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:41,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562040174] [2020-09-24 18:28:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:41,359 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-24 18:28:41,359 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-24 18:28:41,359 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:28:41,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:28:41,385 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-24 18:28:41,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:28:41 BoogieIcfgContainer [2020-09-24 18:28:41,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:28:41,390 INFO L168 Benchmark]: Toolchain (without parser) took 3182.24 ms. Allocated memory was 145.2 MB in the beginning and 232.8 MB in the end (delta: 87.6 MB). Free memory was 101.9 MB in the beginning and 123.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:41,391 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:28:41,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.10 ms. Allocated memory is still 145.2 MB. Free memory was 101.2 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:41,393 INFO L168 Benchmark]: Boogie Preprocessor took 148.89 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 90.8 MB in the beginning and 178.5 MB in the end (delta: -87.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:41,394 INFO L168 Benchmark]: RCFGBuilder took 394.75 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 159.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:41,395 INFO L168 Benchmark]: TraceAbstraction took 2280.21 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 159.2 MB in the beginning and 123.3 MB in the end (delta: 35.9 MB). Peak memory consumption was 67.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:41,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.10 ms. Allocated memory is still 145.2 MB. Free memory was 101.2 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.89 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 90.8 MB in the beginning and 178.5 MB in the end (delta: -87.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 394.75 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 159.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2280.21 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 159.2 MB in the beginning and 123.3 MB in the end (delta: 35.9 MB). Peak memory consumption was 67.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i