/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/loops-crafted-1/sumt3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 00:06:22,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 00:06:22,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 00:06:22,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 00:06:22,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 00:06:22,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 00:06:22,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 00:06:22,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 00:06:22,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 00:06:22,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 00:06:22,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 00:06:22,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 00:06:22,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 00:06:22,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 00:06:22,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 00:06:22,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 00:06:22,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 00:06:22,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 00:06:22,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 00:06:22,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 00:06:22,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 00:06:22,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 00:06:22,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 00:06:22,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 00:06:22,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 00:06:22,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 00:06:22,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 00:06:22,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 00:06:22,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 00:06:22,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 00:06:22,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 00:06:22,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 00:06:22,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 00:06:22,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 00:06:22,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 00:06:22,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 00:06:22,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 00:06:22,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 00:06:22,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 00:06:22,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 00:06:22,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 00:06:22,970 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 [2020-10-15 00:06:23,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 00:06:23,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 00:06:23,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 00:06:23,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 00:06:23,012 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 00:06:23,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 00:06:23,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 00:06:23,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 00:06:23,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 00:06:23,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 00:06:23,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 00:06:23,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 00:06:23,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 00:06:23,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 00:06:23,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 00:06:23,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 00:06:23,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 00:06:23,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 00:06:23,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 00:06:23,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 00:06:23,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 00:06:23,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 00:06:23,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 00:06:23,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 00:06:23,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 00:06:23,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 00:06:23,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 00:06:23,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 00:06:23,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 00:06:23,018 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 00:06:23,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 00:06:23,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 00:06:23,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 00:06:23,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 00:06:23,327 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 00:06:23,328 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt3.c [2020-10-15 00:06:23,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8fac8979/390745c9918a4ddfaf1eb1f7558b91d1/FLAG5f5cd0f6a [2020-10-15 00:06:23,861 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 00:06:23,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt3.c [2020-10-15 00:06:23,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8fac8979/390745c9918a4ddfaf1eb1f7558b91d1/FLAG5f5cd0f6a [2020-10-15 00:06:24,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8fac8979/390745c9918a4ddfaf1eb1f7558b91d1 [2020-10-15 00:06:24,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 00:06:24,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 00:06:24,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 00:06:24,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 00:06:24,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 00:06:24,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1840d501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24, skipping insertion in model container [2020-10-15 00:06:24,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 00:06:24,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 00:06:24,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:06:24,512 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 00:06:24,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:06:24,548 INFO L208 MainTranslator]: Completed translation [2020-10-15 00:06:24,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24 WrapperNode [2020-10-15 00:06:24,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 00:06:24,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 00:06:24,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 00:06:24,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 00:06:24,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (1/1) ... [2020-10-15 00:06:24,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 00:06:24,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 00:06:24,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 00:06:24,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 00:06:24,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (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 [2020-10-15 00:06:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 00:06:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 00:06:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 00:06:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 00:06:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 00:06:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 00:06:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 00:06:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 00:06:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 00:06:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 00:06:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 00:06:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 00:06:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 00:06:24,952 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 00:06:24,953 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 00:06:24,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:24 BoogieIcfgContainer [2020-10-15 00:06:24,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 00:06:24,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 00:06:24,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 00:06:24,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 00:06:24,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:06:24" (1/3) ... [2020-10-15 00:06:24,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e36bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:06:24, skipping insertion in model container [2020-10-15 00:06:24,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:24" (2/3) ... [2020-10-15 00:06:24,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e36bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:06:24, skipping insertion in model container [2020-10-15 00:06:24,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:24" (3/3) ... [2020-10-15 00:06:24,965 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2020-10-15 00:06:24,977 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 00:06:24,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 00:06:25,000 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 00:06:25,027 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 00:06:25,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 00:06:25,028 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 00:06:25,028 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 00:06:25,028 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 00:06:25,028 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 00:06:25,028 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 00:06:25,029 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 00:06:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-15 00:06:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 00:06:25,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:25,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:25,066 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:25,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:25,082 INFO L82 PathProgramCache]: Analyzing trace with hash -320041890, now seen corresponding path program 1 times [2020-10-15 00:06:25,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:25,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417789809] [2020-10-15 00:06:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:25,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:25,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 00:06:25,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:06:25,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-15 00:06:25,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:25,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:06:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 00:06:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:06:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 00:06:25,703 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 19 [2020-10-15 00:06:25,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:25,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:25,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:25,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 00:06:25,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:25,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:06:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:06:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:06:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:25,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417789809] [2020-10-15 00:06:25,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:06:25,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 00:06:25,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82557070] [2020-10-15 00:06:25,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:06:25,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:25,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:06:25,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:06:25,820 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2020-10-15 00:06:26,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:26,199 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2020-10-15 00:06:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 00:06:26,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-15 00:06:26,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:26,210 INFO L225 Difference]: With dead ends: 46 [2020-10-15 00:06:26,211 INFO L226 Difference]: Without dead ends: 19 [2020-10-15 00:06:26,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:06:26,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-15 00:06:26,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2020-10-15 00:06:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-15 00:06:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-10-15 00:06:26,257 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2020-10-15 00:06:26,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:26,258 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-10-15 00:06:26,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:06:26,258 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-10-15 00:06:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 00:06:26,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:26,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:26,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 00:06:26,260 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:26,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:26,261 INFO L82 PathProgramCache]: Analyzing trace with hash -135124987, now seen corresponding path program 1 times [2020-10-15 00:06:26,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:26,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599075518] [2020-10-15 00:06:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:26,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:26,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 00:06:26,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-15 00:06:26,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:26,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:26,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:06:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 00:06:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 00:06:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:26,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:26,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:26,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:26,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:26,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:06:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:06:26,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:26,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599075518] [2020-10-15 00:06:26,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:26,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 00:06:26,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884581256] [2020-10-15 00:06:26,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:06:26,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:26,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:06:26,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:06:26,866 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 8 states. [2020-10-15 00:06:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:27,091 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-10-15 00:06:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 00:06:27,092 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-15 00:06:27,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:27,093 INFO L225 Difference]: With dead ends: 34 [2020-10-15 00:06:27,093 INFO L226 Difference]: Without dead ends: 22 [2020-10-15 00:06:27,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:06:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-15 00:06:27,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-10-15 00:06:27,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-15 00:06:27,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-10-15 00:06:27,101 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2020-10-15 00:06:27,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:27,102 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-10-15 00:06:27,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:06:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-10-15 00:06:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 00:06:27,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:27,103 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:27,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 00:06:27,104 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:27,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:27,104 INFO L82 PathProgramCache]: Analyzing trace with hash 396453102, now seen corresponding path program 2 times [2020-10-15 00:06:27,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:27,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009551733] [2020-10-15 00:06:27,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:27,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:27,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:27,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:27,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 00:06:27,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:06:27,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-15 00:06:27,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:27,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:06:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 00:06:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:27,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:27,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:27,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:27,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:27,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:06:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:06:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 00:06:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:27,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009551733] [2020-10-15 00:06:27,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:27,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:06:27,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586230212] [2020-10-15 00:06:27,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:06:27,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:27,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:06:27,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:06:27,689 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 5 states. [2020-10-15 00:06:27,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:27,813 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2020-10-15 00:06:27,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:06:27,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 00:06:27,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:27,814 INFO L225 Difference]: With dead ends: 32 [2020-10-15 00:06:27,815 INFO L226 Difference]: Without dead ends: 23 [2020-10-15 00:06:27,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:06:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-15 00:06:27,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-10-15 00:06:27,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-15 00:06:27,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-15 00:06:27,827 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2020-10-15 00:06:27,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:27,827 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-15 00:06:27,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:06:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-15 00:06:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 00:06:27,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:27,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:27,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 00:06:27,832 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:27,834 INFO L82 PathProgramCache]: Analyzing trace with hash -291244452, now seen corresponding path program 1 times [2020-10-15 00:06:27,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:27,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504528890] [2020-10-15 00:06:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:27,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:28,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 00:06:28,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:28,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-15 00:06:28,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:28,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:06:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 00:06:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 00:06:28,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:28,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:28,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:28,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:28,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:28,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:06:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:06:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:28,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504528890] [2020-10-15 00:06:28,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:28,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 00:06:28,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368090115] [2020-10-15 00:06:28,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:06:28,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:28,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:06:28,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:06:28,078 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 5 states. [2020-10-15 00:06:28,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:28,154 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2020-10-15 00:06:28,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 00:06:28,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 00:06:28,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:28,155 INFO L225 Difference]: With dead ends: 32 [2020-10-15 00:06:28,155 INFO L226 Difference]: Without dead ends: 23 [2020-10-15 00:06:28,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:06:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-15 00:06:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-10-15 00:06:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-15 00:06:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-15 00:06:28,162 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 19 [2020-10-15 00:06:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:28,162 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-15 00:06:28,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:06:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-15 00:06:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 00:06:28,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:28,163 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:28,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 00:06:28,164 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:28,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1483762910, now seen corresponding path program 1 times [2020-10-15 00:06:28,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:28,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975511230] [2020-10-15 00:06:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:28,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 00:06:28,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-15 00:06:28,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:28,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:06:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 00:06:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 00:06:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:28,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:28,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:28,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:28,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:06:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:06:28,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 00:06:28,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975511230] [2020-10-15 00:06:28,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:28,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 00:06:28,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724288058] [2020-10-15 00:06:28,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:06:28,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:28,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:06:28,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:06:28,638 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 8 states. [2020-10-15 00:06:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:28,754 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-10-15 00:06:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 00:06:28,754 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-15 00:06:28,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:28,755 INFO L225 Difference]: With dead ends: 22 [2020-10-15 00:06:28,755 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 00:06:28,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:06:28,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 00:06:28,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 00:06:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 00:06:28,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 00:06:28,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-15 00:06:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:28,757 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 00:06:28,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:06:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 00:06:28,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 00:06:28,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 00:06:28,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 00:06:28,859 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-15 00:06:28,859 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-10-15 00:06:28,859 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 00:06:28,859 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 00:06:28,860 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 00:06:28,860 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 00:06:28,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 00:06:28,860 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-15 00:06:28,860 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-15 00:06:28,860 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-15 00:06:28,860 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-15 00:06:28,861 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 34) no Hoare annotation was computed. [2020-10-15 00:06:28,861 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-15 00:06:28,861 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 34) no Hoare annotation was computed. [2020-10-15 00:06:28,861 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-15 00:06:28,861 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 34) the Hoare annotation is: true [2020-10-15 00:06:28,861 INFO L268 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-10-15 00:06:28,861 INFO L268 CegarLoopResult]: For program point L24(lines 24 29) no Hoare annotation was computed. [2020-10-15 00:06:28,862 INFO L268 CegarLoopResult]: For program point L26-2(lines 24 29) no Hoare annotation was computed. [2020-10-15 00:06:28,862 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 31) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-15 00:06:28,862 INFO L264 CegarLoopResult]: At program point L22-3(lines 22 31) the Hoare annotation is: (let ((.cse3 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296)) (.cse2 (div main_~l~0 4294967296))) (let ((.cse1 (+ main_~i~0 main_~j~0 main_~k~0 (* 4294967296 .cse2))) (.cse0 (* 4294967296 .cse3))) (and (<= (+ main_~l~0 .cse0) .cse1) (< .cse1 (+ main_~l~0 .cse0 1)) (<= .cse2 .cse3)))) [2020-10-15 00:06:28,862 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-15 00:06:28,862 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-15 00:06:28,863 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-15 00:06:28,863 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-15 00:06:28,863 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-15 00:06:28,863 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-15 00:06:28,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:06:28 BoogieIcfgContainer [2020-10-15 00:06:28,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 00:06:28,883 INFO L168 Benchmark]: Toolchain (without parser) took 4585.03 ms. Allocated memory was 146.8 MB in the beginning and 243.8 MB in the end (delta: 97.0 MB). Free memory was 103.1 MB in the beginning and 124.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. [2020-10-15 00:06:28,884 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-15 00:06:28,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.93 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-10-15 00:06:28,886 INFO L168 Benchmark]: Boogie Preprocessor took 120.96 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 93.1 MB in the beginning and 182.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-15 00:06:28,887 INFO L168 Benchmark]: RCFGBuilder took 286.64 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 168.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-10-15 00:06:28,888 INFO L168 Benchmark]: TraceAbstraction took 3922.73 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 168.2 MB in the beginning and 124.9 MB in the end (delta: 43.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-10-15 00:06:28,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.93 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.96 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 93.1 MB in the beginning and 182.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.64 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 168.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3922.73 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 168.2 MB in the beginning and 124.9 MB in the end (delta: 43.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: l <= i + j + k && i + j + k <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 103 SDslu, 119 SDs, 0 SdLazy, 250 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 19 NumberOfFragments, 72 HoareAnnotationTreeSize, 13 FomulaSimplifications, 204 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 109 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 11198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 9/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...