/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/mods.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:51:17,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:51:17,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:51:17,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:51:17,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:51:17,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:51:17,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:51:17,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:51:17,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:51:17,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:51:17,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:51:17,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:51:17,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:51:17,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:51:17,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:51:17,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:51:17,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:51:17,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:51:17,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:51:17,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:51:17,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:51:17,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:51:17,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:51:17,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:51:17,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:51:17,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:51:17,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:51:17,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:51:17,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:51:17,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:51:17,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:51:17,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:51:17,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:51:17,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:51:17,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:51:17,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:51:17,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:51:17,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:51:17,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:51:17,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:51:17,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:51:17,788 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 23:51:17,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:51:17,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:51:17,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:51:17,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:51:17,836 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:51:17,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:51:17,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:51:17,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:51:17,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:51:17,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:51:17,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:51:17,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:51:17,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:51:17,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:51:17,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:51:17,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:51:17,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:51:17,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:51:17,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:51:17,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:51:17,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:51:17,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:51:17,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:51:17,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:51:17,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:51:17,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:51:17,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:51:17,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:51:17,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:51:17,842 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 23:51:18,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:51:18,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:51:18,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:51:18,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:51:18,200 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:51:18,200 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/mods.c [2020-10-13 23:51:18,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b284a0c23/cb33e7422fab4f1caf4310e7c1c83e8c/FLAG953e2cd68 [2020-10-13 23:51:18,710 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:51:18,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/mods.c [2020-10-13 23:51:18,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b284a0c23/cb33e7422fab4f1caf4310e7c1c83e8c/FLAG953e2cd68 [2020-10-13 23:51:19,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b284a0c23/cb33e7422fab4f1caf4310e7c1c83e8c [2020-10-13 23:51:19,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:51:19,072 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:51:19,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:51:19,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:51:19,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:51:19,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3c0a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19, skipping insertion in model container [2020-10-13 23:51:19,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:51:19,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:51:19,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:51:19,296 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:51:19,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:51:19,335 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:51:19,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19 WrapperNode [2020-10-13 23:51:19,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:51:19,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:51:19,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:51:19,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:51:19,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (1/1) ... [2020-10-13 23:51:19,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:51:19,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:51:19,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:51:19,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:51:19,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (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 23:51:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:51:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:51:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:51:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:51:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:51:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:51:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:51:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:51:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:51:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:51:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:51:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:51:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:51:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:51:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:51:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:51:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:51:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:51:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:51:19,839 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:51:19,839 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 23:51:19,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:51:19 BoogieIcfgContainer [2020-10-13 23:51:19,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:51:19,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:51:19,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:51:19,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:51:19,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:51:19" (1/3) ... [2020-10-13 23:51:19,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14736aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:51:19, skipping insertion in model container [2020-10-13 23:51:19,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:19" (2/3) ... [2020-10-13 23:51:19,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14736aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:51:19, skipping insertion in model container [2020-10-13 23:51:19,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:51:19" (3/3) ... [2020-10-13 23:51:19,857 INFO L109 eAbstractionObserver]: Analyzing ICFG mods.c [2020-10-13 23:51:19,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:51:19,882 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:51:19,901 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:51:19,932 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:51:19,932 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:51:19,932 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:51:19,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:51:19,932 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:51:19,933 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:51:19,933 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:51:19,933 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:51:19,956 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-13 23:51:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 23:51:19,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:19,965 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] [2020-10-13 23:51:19,966 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:19,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:19,973 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-10-13 23:51:19,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:19,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650370817] [2020-10-13 23:51:19,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:20,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:21,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 23:51:21,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 23:51:21,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1152 [2020-10-13 23:51:21,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:21,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 23:51:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 23:51:21,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:51:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:21,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:21,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:51:21,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:21,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:51:21,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:21,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:21,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 23:51:21,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:51:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:21,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:21,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:51:21,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:51:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:51:21,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:21,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:21,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:51:21,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:21,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:51:21,409 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 23:51:21,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650370817] [2020-10-13 23:51:21,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:51:21,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 23:51:21,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924737284] [2020-10-13 23:51:21,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 23:51:21,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:51:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 23:51:21,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:51:21,438 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-10-13 23:51:21,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:51:21,562 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-10-13 23:51:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:51:21,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-13 23:51:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:51:21,574 INFO L225 Difference]: With dead ends: 70 [2020-10-13 23:51:21,574 INFO L226 Difference]: Without dead ends: 35 [2020-10-13 23:51:21,578 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 23:51:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-13 23:51:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-13 23:51:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-13 23:51:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-13 23:51:21,621 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-10-13 23:51:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:51:21,622 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-13 23:51:21,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 23:51:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-13 23:51:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 23:51:21,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:21,623 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] [2020-10-13 23:51:21,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:51:21,624 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:21,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:21,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-10-13 23:51:21,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:21,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258773807] [2020-10-13 23:51:21,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:21,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:21,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:22,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:22,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 23:51:22,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 23:51:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 930 [2020-10-13 23:51:22,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:22,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:51:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:51:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 23:51:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:22,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:51:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:22,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:22,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:51:22,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:22,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:51:22,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:22,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:22,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:51:22,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:51:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:51:22,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:51:22,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:22,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:51:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:22,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:51:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:22,657 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 23:51:22,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258773807] [2020-10-13 23:51:22,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:51:22,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:51:22,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716831219] [2020-10-13 23:51:22,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:51:22,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:51:22,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:51:22,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:51:22,666 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-10-13 23:51:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:51:22,943 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2020-10-13 23:51:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:51:22,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-13 23:51:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:51:22,945 INFO L225 Difference]: With dead ends: 60 [2020-10-13 23:51:22,946 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 23:51:22,949 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 23:51:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 23:51:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-13 23:51:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 23:51:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-13 23:51:22,978 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-10-13 23:51:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:51:22,981 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-13 23:51:22,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:51:22,982 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-13 23:51:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 23:51:22,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:22,983 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] [2020-10-13 23:51:22,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:51:22,988 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:22,988 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-10-13 23:51:22,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:22,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938172298] [2020-10-13 23:51:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:23,010 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 23:51:23,011 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 23:51:23,011 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:51:23,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:51:23,056 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 23:51:23,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:51:23 BoogieIcfgContainer [2020-10-13 23:51:23,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:51:23,065 INFO L168 Benchmark]: Toolchain (without parser) took 3988.55 ms. Allocated memory was 145.8 MB in the beginning and 247.5 MB in the end (delta: 101.7 MB). Free memory was 101.6 MB in the beginning and 217.0 MB in the end (delta: -115.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:51:23,066 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-13 23:51:23,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.74 ms. Allocated memory is still 145.8 MB. Free memory was 101.2 MB in the beginning and 90.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:23,071 INFO L168 Benchmark]: Boogie Preprocessor took 135.88 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 90.6 MB in the beginning and 179.5 MB in the end (delta: -89.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:23,074 INFO L168 Benchmark]: RCFGBuilder took 373.14 ms. Allocated memory is still 202.4 MB. Free memory was 179.5 MB in the beginning and 160.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:23,075 INFO L168 Benchmark]: TraceAbstraction took 3209.95 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 159.8 MB in the beginning and 217.0 MB in the end (delta: -57.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:51:23,082 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.74 ms. Allocated memory is still 145.8 MB. Free memory was 101.2 MB in the beginning and 90.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.88 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 90.6 MB in the beginning and 179.5 MB in the end (delta: -89.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 373.14 ms. Allocated memory is still 202.4 MB. Free memory was 179.5 MB in the beginning and 160.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3209.95 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 159.8 MB in the beginning and 217.0 MB in the end (delta: -57.2 MB). There was no memory consumed. 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 sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i