/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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/indp2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:51:03,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:51:03,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:51:03,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:51:03,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:51:03,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:51:03,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:51:03,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:51:03,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:51:03,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:51:03,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:51:03,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:51:03,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:51:03,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:51:03,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:51:03,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:51:03,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:51:03,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:51:03,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:51:03,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:51:03,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:51:03,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:51:03,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:51:03,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:51:03,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:51:03,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:51:03,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:51:03,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:51:03,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:51:03,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:51:03,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:51:03,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:51:03,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:51:03,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:51:03,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:51:03,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:51:03,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:51:03,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:51:03,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:51:03,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:51:03,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:51:03,249 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 [2020-10-13 23:51:03,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:51:03,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:51:03,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:51:03,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:51:03,275 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:51:03,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:51:03,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:51:03,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:51:03,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:51:03,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:51:03,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:51:03,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:51:03,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:51:03,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:51:03,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:51:03,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:51:03,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:51:03,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:51:03,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:51:03,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:51:03,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:51:03,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:51:03,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:51:03,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:51:03,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:51:03,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:51:03,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:51:03,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:51:03,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:51:03,280 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 -> SequenceOfStatements 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:51:03,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:51:03,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:51:03,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:51:03,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:51:03,657 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:51:03,657 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp2f.c [2020-10-13 23:51:03,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e355de37/c61848e5f82d4b93b6cc4bd694243e2b/FLAG433638458 [2020-10-13 23:51:04,196 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:51:04,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp2f.c [2020-10-13 23:51:04,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e355de37/c61848e5f82d4b93b6cc4bd694243e2b/FLAG433638458 [2020-10-13 23:51:04,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e355de37/c61848e5f82d4b93b6cc4bd694243e2b [2020-10-13 23:51:04,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:51:04,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:51:04,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:51:04,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:51:04,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:51:04,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fcbc996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04, skipping insertion in model container [2020-10-13 23:51:04,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:51:04,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:51:04,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:51:04,812 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:51:04,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:51:04,852 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:51:04,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04 WrapperNode [2020-10-13 23:51:04,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:51:04,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:51:04,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:51:04,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:51:04,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:51:04,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:51:04,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:51:04,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:51:04,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (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 [2020-10-13 23:51:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:51:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:51:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:51:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:51:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:51:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:51:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:51:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:51:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:51:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:51:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:51:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:51:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:51:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:51:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:51:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:51:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:51:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:51:05,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:51:05,356 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 23:51:05,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:51:05 BoogieIcfgContainer [2020-10-13 23:51:05,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:51:05,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:51:05,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:51:05,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:51:05,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:51:04" (1/3) ... [2020-10-13 23:51:05,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e88174e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:51:05, skipping insertion in model container [2020-10-13 23:51:05,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (2/3) ... [2020-10-13 23:51:05,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e88174e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:51:05, skipping insertion in model container [2020-10-13 23:51:05,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:51:05" (3/3) ... [2020-10-13 23:51:05,369 INFO L109 eAbstractionObserver]: Analyzing ICFG indp2f.c [2020-10-13 23:51:05,380 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:51:05,387 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:51:05,403 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:51:05,429 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:51:05,430 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:51:05,430 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:51:05,430 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:51:05,430 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:51:05,430 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:51:05,431 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:51:05,431 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:51:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-13 23:51:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 23:51:05,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:05,480 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] [2020-10-13 23:51:05,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:05,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:05,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-10-13 23:51:05,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:05,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413381018] [2020-10-13 23:51:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:05,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:06,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 23:51:06,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 23:51:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-10-13 23:51:06,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:06,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:51:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:06,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 23:51:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:51:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:06,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:06,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:51:06,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:51:06,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:06,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:06,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:51:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:06,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:06,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:51:06,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:51:06,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:06,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:51:06,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:06,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:51:06,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413381018] [2020-10-13 23:51:06,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:51:06,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 23:51:06,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899039354] [2020-10-13 23:51:06,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 23:51:06,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:51:06,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 23:51:06,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:51:06,822 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-10-13 23:51:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:51:06,987 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-10-13 23:51:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:51:06,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-13 23:51:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:51:07,001 INFO L225 Difference]: With dead ends: 64 [2020-10-13 23:51:07,002 INFO L226 Difference]: Without dead ends: 32 [2020-10-13 23:51:07,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:51:07,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-13 23:51:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-13 23:51:07,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-13 23:51:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-13 23:51:07,063 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-10-13 23:51:07,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:51:07,064 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-13 23:51:07,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 23:51:07,064 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-13 23:51:07,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 23:51:07,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:07,067 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] [2020-10-13 23:51:07,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:51:07,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-10-13 23:51:07,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:07,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364562927] [2020-10-13 23:51:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:07,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:07,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 23:51:07,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:51:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-10-13 23:51:07,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:07,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:51:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:51:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:51:07,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:51:07,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:51:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:07,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:07,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:51:07,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:07,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:51:07,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:07,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:07,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:07,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:51:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:07,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:07,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:07,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:51:07,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:51:07,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:07,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:51:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:51:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:51:07,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364562927] [2020-10-13 23:51:07,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:51:07,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:51:07,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245136402] [2020-10-13 23:51:07,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:51:07,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:51:07,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:51:07,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:51:07,826 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2020-10-13 23:51:08,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:51:08,049 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-13 23:51:08,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:51:08,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-13 23:51:08,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:51:08,051 INFO L225 Difference]: With dead ends: 53 [2020-10-13 23:51:08,052 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 23:51:08,053 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 [2020-10-13 23:51:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 23:51:08,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-10-13 23:51:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-13 23:51:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-13 23:51:08,075 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-10-13 23:51:08,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:51:08,076 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-13 23:51:08,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:51:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-13 23:51:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 23:51:08,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:08,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:51:08,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:51:08,079 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:08,080 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-10-13 23:51:08,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:08,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885303100] [2020-10-13 23:51:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:08,096 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 23:51:08,096 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 23:51:08,097 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:51:08,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:51:08,126 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 23:51:08,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:51:08 BoogieIcfgContainer [2020-10-13 23:51:08,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:51:08,132 INFO L168 Benchmark]: Toolchain (without parser) took 3548.26 ms. Allocated memory was 145.8 MB in the beginning and 257.9 MB in the end (delta: 112.2 MB). Free memory was 102.2 MB in the beginning and 125.5 MB in the end (delta: -23.2 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:08,134 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 23:51:08,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.96 ms. Allocated memory is still 145.8 MB. Free memory was 102.0 MB in the beginning and 91.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:08,136 INFO L168 Benchmark]: Boogie Preprocessor took 82.58 ms. Allocated memory was 145.8 MB in the beginning and 176.7 MB in the end (delta: 30.9 MB). Free memory was 91.3 MB in the beginning and 144.9 MB in the end (delta: -53.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:08,137 INFO L168 Benchmark]: RCFGBuilder took 423.86 ms. Allocated memory was 176.7 MB in the beginning and 223.3 MB in the end (delta: 46.7 MB). Free memory was 144.9 MB in the beginning and 191.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:08,140 INFO L168 Benchmark]: TraceAbstraction took 2764.94 ms. Allocated memory was 223.3 MB in the beginning and 257.9 MB in the end (delta: 34.6 MB). Free memory was 191.8 MB in the beginning and 125.5 MB in the end (delta: 66.4 MB). Peak memory consumption was 101.0 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:08,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 268.96 ms. Allocated memory is still 145.8 MB. Free memory was 102.0 MB in the beginning and 91.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.58 ms. Allocated memory was 145.8 MB in the beginning and 176.7 MB in the end (delta: 30.9 MB). Free memory was 91.3 MB in the beginning and 144.9 MB in the end (delta: -53.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.86 ms. Allocated memory was 176.7 MB in the beginning and 223.3 MB in the end (delta: 46.7 MB). Free memory was 144.9 MB in the beginning and 191.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2764.94 ms. Allocated memory was 223.3 MB in the beginning and 257.9 MB in the end (delta: 34.6 MB). Free memory was 191.8 MB in the beginning and 125.5 MB in the end (delta: 66.4 MB). Peak memory consumption was 101.0 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] long long *a = malloc(sizeof(long long)*N); [L28] i=0 [L28] COND TRUE i