/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/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:33:34,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:33:34,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:33:34,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:33:34,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:33:34,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:33:34,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:33:34,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:33:34,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:33:34,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:33:34,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:33:34,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:33:34,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:33:34,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:33:34,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:33:34,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:33:34,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:33:34,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:33:34,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:33:34,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:33:34,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:33:34,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:33:34,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:33:34,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:33:34,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:33:34,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:33:34,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:33:34,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:33:34,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:33:34,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:33:34,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:33:34,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:33:34,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:33:34,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:33:34,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:33:34,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:33:34,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:33:34,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:33:34,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:33:34,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:33:34,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:33:34,590 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 [2020-10-14 05:33:34,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:33:34,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:33:34,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:33:34,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:33:34,614 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:33:34,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:33:34,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:33:34,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:33:34,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:33:34,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:33:34,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:33:34,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:33:34,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:33:34,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:33:34,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:33:34,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:33:34,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:33:34,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:33:34,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:33:34,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:33:34,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:33:34,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:33:34,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:33:34,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:33:34,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:33:34,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:33:34,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:33:34,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:33:34,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:33:34,618 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; [2020-10-14 05:33:34,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:33:34,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:33:34,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:33:34,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:33:34,940 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:33:34,941 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-10-14 05:33:35,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe4f8204/89cf6a7d84784e029c15dece35f217e2/FLAG67470e50b [2020-10-14 05:33:35,470 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:33:35,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-10-14 05:33:35,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe4f8204/89cf6a7d84784e029c15dece35f217e2/FLAG67470e50b [2020-10-14 05:33:35,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe4f8204/89cf6a7d84784e029c15dece35f217e2 [2020-10-14 05:33:35,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:33:35,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:33:35,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:33:35,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:33:35,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:33:35,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:33:35" (1/1) ... [2020-10-14 05:33:35,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88af870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:35, skipping insertion in model container [2020-10-14 05:33:35,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:33:35" (1/1) ... [2020-10-14 05:33:35,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:33:35,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:33:36,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:33:36,049 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:33:36,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:33:36,092 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:33:36,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36 WrapperNode [2020-10-14 05:33:36,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:33:36,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:33:36,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:33:36,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:33:36,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (1/1) ... [2020-10-14 05:33:36,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:33:36,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:33:36,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:33:36,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:33:36,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (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 [2020-10-14 05:33:36,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:33:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:33:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 05:33:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 05:33:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:33:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:33:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:33:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 05:33:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:33:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 05:33:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:33:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:33:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:33:36,547 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:33:36,547 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 05:33:36,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:33:36 BoogieIcfgContainer [2020-10-14 05:33:36,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:33:36,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:33:36,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:33:36,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:33:36,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:33:35" (1/3) ... [2020-10-14 05:33:36,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246e1111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:33:36, skipping insertion in model container [2020-10-14 05:33:36,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:33:36" (2/3) ... [2020-10-14 05:33:36,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246e1111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:33:36, skipping insertion in model container [2020-10-14 05:33:36,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:33:36" (3/3) ... [2020-10-14 05:33:36,560 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-10-14 05:33:36,571 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:33:36,579 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:33:36,595 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:33:36,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:33:36,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:33:36,662 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:33:36,662 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:33:36,662 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:33:36,663 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:33:36,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:33:36,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:33:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-14 05:33:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:33:36,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:33:36,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:33:36,705 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:33:36,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:33:36,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1078562183, now seen corresponding path program 1 times [2020-10-14 05:33:36,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:33:36,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109765992] [2020-10-14 05:33:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:33:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:37,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:37,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 05:33:37,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:37,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-14 05:33:37,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:37,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:37,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:33:37,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:33:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:33:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 05:33:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:33:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:37,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:37,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:37,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:33:37,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:37,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:33:37,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:37,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:33:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:33:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:33:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:33:37,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109765992] [2020-10-14 05:33:37,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:33:37,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:33:37,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48716473] [2020-10-14 05:33:37,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:33:37,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:33:37,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:33:37,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:33:37,747 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 8 states. [2020-10-14 05:33:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:33:46,635 INFO L93 Difference]: Finished difference Result 71 states and 105 transitions. [2020-10-14 05:33:46,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:33:46,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-14 05:33:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:33:46,654 INFO L225 Difference]: With dead ends: 71 [2020-10-14 05:33:46,654 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 05:33:46,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:33:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 05:33:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2020-10-14 05:33:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 05:33:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-14 05:33:46,722 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2020-10-14 05:33:46,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:33:46,723 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-14 05:33:46,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:33:46,723 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-10-14 05:33:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 05:33:46,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:33:46,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:33:46,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:33:46,726 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:33:46,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:33:46,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1550149586, now seen corresponding path program 1 times [2020-10-14 05:33:46,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:33:46,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197811072] [2020-10-14 05:33:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:33:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:46,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:47,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 05:33:47,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:33:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 815 [2020-10-14 05:33:47,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:47,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:33:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:33:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:33:47,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:47,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:33:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:47,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:47,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:47,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:33:47,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:47,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:33:47,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:47,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:47,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:33:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:33:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:47,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:33:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:47,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:47,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:47,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:33:47,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:47,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:33:47,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:47,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:33:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:33:47,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:33:47,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197811072] [2020-10-14 05:33:47,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:33:47,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:33:47,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201923264] [2020-10-14 05:33:47,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:33:47,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:33:47,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:33:47,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:33:47,689 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 5 states. [2020-10-14 05:33:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:33:49,949 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2020-10-14 05:33:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:33:49,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-14 05:33:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:33:49,952 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:33:49,952 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:33:49,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:33:49,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:33:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-10-14 05:33:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-14 05:33:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-14 05:33:49,962 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 22 [2020-10-14 05:33:49,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:33:49,962 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-14 05:33:49,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:33:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-14 05:33:49,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 05:33:49,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:33:49,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:33:49,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:33:49,964 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:33:49,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:33:49,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1734885426, now seen corresponding path program 1 times [2020-10-14 05:33:49,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:33:49,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727674763] [2020-10-14 05:33:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:33:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:49,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:50,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:50,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:51,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:51,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 05:33:51,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:33:51,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1288 [2020-10-14 05:33:51,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:51,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:33:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:33:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 05:33:51,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:51,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:33:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:51,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:51,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:51,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:33:51,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:33:51,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:51,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:33:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:51,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:33:51,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:51,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:33:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:51,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:51,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:33:51,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 05:33:51,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:51,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:33:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:51,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:33:51,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:33:51,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727674763] [2020-10-14 05:33:51,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:33:51,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:33:51,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243988530] [2020-10-14 05:33:51,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:33:51,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:33:51,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:33:51,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:33:51,451 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 5 states. [2020-10-14 05:33:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:33:51,692 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2020-10-14 05:33:51,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:33:51,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-14 05:33:51,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:33:51,695 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:33:51,696 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:33:51,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:33:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:33:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2020-10-14 05:33:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 05:33:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-10-14 05:33:51,711 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 23 [2020-10-14 05:33:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:33:51,711 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-14 05:33:51,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:33:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-10-14 05:33:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 05:33:51,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:33:51,714 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:33:51,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:33:51,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:33:51,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:33:51,715 INFO L82 PathProgramCache]: Analyzing trace with hash -985092371, now seen corresponding path program 1 times [2020-10-14 05:33:51,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:33:51,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390440618] [2020-10-14 05:33:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:33:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:51,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:58,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:02,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:02,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 05:34:02,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:34:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11131 [2020-10-14 05:34:02,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:02,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:34:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:34:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:34:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:34:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:03,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:03,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:34:03,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:34:03,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:03,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:03,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:34:03,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:34:03,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:34:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:03,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:34:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:03,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:03,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:03,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:34:03,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:34:03,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:03,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:34:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:34:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:34:03,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:34:03,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390440618] [2020-10-14 05:34:03,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:34:03,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:34:03,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485476222] [2020-10-14 05:34:03,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:34:03,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:34:03,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:34:03,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:34:03,048 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 5 states. [2020-10-14 05:34:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:34:03,352 INFO L93 Difference]: Finished difference Result 56 states and 75 transitions. [2020-10-14 05:34:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:34:03,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-14 05:34:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:34:03,357 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:34:03,357 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:34:03,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:34:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:34:03,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2020-10-14 05:34:03,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 05:34:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-10-14 05:34:03,377 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 24 [2020-10-14 05:34:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:34:03,378 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-10-14 05:34:03,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:34:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-10-14 05:34:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 05:34:03,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:34:03,382 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:34:03,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:34:03,384 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:34:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:34:03,384 INFO L82 PathProgramCache]: Analyzing trace with hash 738087597, now seen corresponding path program 1 times [2020-10-14 05:34:03,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:34:03,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478321553] [2020-10-14 05:34:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:34:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:03,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:22,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:22,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 05:34:22,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:22,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18596 [2020-10-14 05:34:22,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:22,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:34:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:34:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 05:34:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:22,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:34:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:22,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:22,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:22,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:34:22,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:34:22,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:22,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:34:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:34:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:34:22,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:22,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:34:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:22,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:22,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:22,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:34:22,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:34:22,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:22,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:34:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:34:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:34:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:34:22,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478321553] [2020-10-14 05:34:22,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:34:22,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:34:22,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116330684] [2020-10-14 05:34:22,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:34:22,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:34:22,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:34:22,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:34:22,176 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 5 states. [2020-10-14 05:34:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:34:22,418 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2020-10-14 05:34:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:34:22,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-14 05:34:22,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:34:22,420 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:34:22,420 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:34:22,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:34:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:34:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2020-10-14 05:34:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 05:34:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-10-14 05:34:22,434 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 25 [2020-10-14 05:34:22,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:34:22,434 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-10-14 05:34:22,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:34:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-10-14 05:34:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 05:34:22,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:34:22,435 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:34:22,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:34:22,435 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:34:22,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:34:22,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1534762488, now seen corresponding path program 1 times [2020-10-14 05:34:22,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:34:22,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165049379] [2020-10-14 05:34:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:34:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:22,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:48,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:48,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 05:34:48,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:34:48,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26100 [2020-10-14 05:34:48,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:48,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:34:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:34:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:34:48,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:34:52,813 WARN L193 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2020-10-14 05:34:52,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:34:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:52,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:52,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:52,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:34:52,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:34:52,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:52,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:34:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:34:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:34:52,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:34:52,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:34:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:52,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:34:52,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:34:52,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:34:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:34:52,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:34:52,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:34:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:34:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:34:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:34:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:34:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:34:52,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165049379] [2020-10-14 05:34:52,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:34:52,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:34:52,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152481455] [2020-10-14 05:34:52,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:34:52,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:34:52,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:34:52,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:34:52,851 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 5 states. [2020-10-14 05:34:53,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:34:53,048 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2020-10-14 05:34:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:34:53,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-14 05:34:53,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:34:53,050 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:34:53,050 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:34:53,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:34:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:34:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-10-14 05:34:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 05:34:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-10-14 05:34:53,064 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 26 [2020-10-14 05:34:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:34:53,064 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-14 05:34:53,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:34:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-10-14 05:34:53,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 05:34:53,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:34:53,066 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:34:53,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:34:53,068 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:34:53,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:34:53,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1164474664, now seen corresponding path program 1 times [2020-10-14 05:34:53,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:34:53,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602708050] [2020-10-14 05:34:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:34:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:34:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:34:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:35:39,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:35:39,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 05:35:39,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:35:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46089 [2020-10-14 05:35:39,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:35:39,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:35:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:35:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:35:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 05:35:39,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:35:39,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:35:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:35:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:35:39,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:35:39,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:35:39,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:35:39,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:35:39,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:35:39,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:35:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:35:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:35:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:35:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:35:39,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:35:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:35:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:35:39,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:35:39,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:35:39,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:35:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:35:39,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:35:39,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:35:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:35:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:35:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:35:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:35:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:35:39,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602708050] [2020-10-14 05:35:39,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:35:39,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:35:39,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254634792] [2020-10-14 05:35:39,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:35:39,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:35:39,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:35:39,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:35:39,324 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 5 states. [2020-10-14 05:35:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:35:43,674 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2020-10-14 05:35:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:35:43,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-14 05:35:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:35:43,676 INFO L225 Difference]: With dead ends: 55 [2020-10-14 05:35:43,676 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 05:35:43,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:35:43,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 05:35:43,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2020-10-14 05:35:43,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-14 05:35:43,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-10-14 05:35:43,684 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 27 [2020-10-14 05:35:43,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:35:43,685 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-14 05:35:43,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:35:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-10-14 05:35:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 05:35:43,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:35:43,686 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:35:43,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:35:43,687 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:35:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:35:43,687 INFO L82 PathProgramCache]: Analyzing trace with hash -915373789, now seen corresponding path program 1 times [2020-10-14 05:35:43,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:35:43,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106189460] [2020-10-14 05:35:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:35:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:35:43,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:35:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:35:43,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:36:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:36:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24539 [2020-10-14 05:36:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:08,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:36:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 05:36:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:08,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:08,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:08,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:08,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:08,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:36:08,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:08,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:36:08,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:36:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:08,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:08,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:08,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:36:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:36:08,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:08,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:36:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:36:08,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106189460] [2020-10-14 05:36:08,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:08,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:36:08,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616525702] [2020-10-14 05:36:08,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:36:08,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:08,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:36:08,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:36:08,360 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 5 states. [2020-10-14 05:36:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:08,537 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-14 05:36:08,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:36:08,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-14 05:36:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:08,539 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:36:08,539 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 05:36:08,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:36:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 05:36:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-14 05:36:08,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-14 05:36:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2020-10-14 05:36:08,555 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 28 [2020-10-14 05:36:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:08,556 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2020-10-14 05:36:08,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:36:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2020-10-14 05:36:08,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 05:36:08,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:36:08,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:36:08,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:36:08,559 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:36:08,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:36:08,560 INFO L82 PathProgramCache]: Analyzing trace with hash -858115487, now seen corresponding path program 1 times [2020-10-14 05:36:08,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:36:08,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777728682] [2020-10-14 05:36:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:36:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:08,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:08,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:18,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 05:36:18,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:36:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10088 [2020-10-14 05:36:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:18,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:36:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:36:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 05:36:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:36:18,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:36:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:18,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:36:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:36:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 05:36:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:36:18,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:36:18,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:36:18,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 05:36:18,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:36:18,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:36:18,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:36:18,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:36:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:36:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:36:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:36:18,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:36:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:36:18,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777728682] [2020-10-14 05:36:18,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:36:18,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 05:36:18,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794425418] [2020-10-14 05:36:18,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:36:18,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:36:18,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:36:18,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:36:18,848 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 8 states. [2020-10-14 05:36:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:36:27,263 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2020-10-14 05:36:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:36:27,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-14 05:36:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:36:27,333 INFO L225 Difference]: With dead ends: 39 [2020-10-14 05:36:27,333 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:36:27,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 05:36:27,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:36:27,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:36:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:36:27,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:36:27,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-14 05:36:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:36:27,334 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:36:27,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:36:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:36:27,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:36:27,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:36:27,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:36:27,421 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:36:27,421 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-10-14 05:36:27,421 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:36:27,421 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:36:27,421 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:36:27,422 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2020-10-14 05:36:27,422 INFO L268 CegarLoopResult]: For program point L27(lines 27 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 41) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L23(lines 23 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 39) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L33-2(lines 21 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L29(lines 29 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L25(lines 25 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point L21(lines 21 36) no Hoare annotation was computed. [2020-10-14 05:36:27,423 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 41) no Hoare annotation was computed. [2020-10-14 05:36:27,424 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-14 05:36:27,424 INFO L264 CegarLoopResult]: At program point L38-1(lines 19 39) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 main_~v5~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-14 05:36:27,424 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 41) the Hoare annotation is: true [2020-10-14 05:36:27,424 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-14 05:36:27,424 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-14 05:36:27,424 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-14 05:36:27,424 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-14 05:36:27,425 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-14 05:36:27,425 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-14 05:36:27,425 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-14 05:36:27,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:36:27 BoogieIcfgContainer [2020-10-14 05:36:27,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:36:27,446 INFO L168 Benchmark]: Toolchain (without parser) took 171613.10 ms. Allocated memory was 145.8 MB in the beginning and 667.9 MB in the end (delta: 522.2 MB). Free memory was 101.9 MB in the beginning and 590.9 MB in the end (delta: -489.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:36:27,447 INFO L168 Benchmark]: CDTParser took 0.20 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: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 05:36:27,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.47 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 91.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:36:27,449 INFO L168 Benchmark]: Boogie Preprocessor took 132.28 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.8 MB in the beginning and 180.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:36:27,450 INFO L168 Benchmark]: RCFGBuilder took 325.48 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 164.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:36:27,450 INFO L168 Benchmark]: TraceAbstraction took 170891.16 ms. Allocated memory was 202.4 MB in the beginning and 667.9 MB in the end (delta: 465.6 MB). Free memory was 163.4 MB in the beginning and 590.9 MB in the end (delta: -427.5 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:36:27,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.47 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 91.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.28 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.8 MB in the beginning and 180.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.48 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 164.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 170891.16 ms. Allocated memory was 202.4 MB in the beginning and 667.9 MB in the end (delta: 465.6 MB). Free memory was 163.4 MB in the beginning and 590.9 MB in the end (delta: -427.5 MB). Peak memory consumption was 38.1 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: 19]: Loop Invariant Derived loop invariant: l <= i + j + k + v1 + v2 + v3 + v4 + v5 && i + j + k + v1 + v2 + v3 + v4 + v5 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 170.6s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 389 SDslu, 171 SDs, 0 SdLazy, 717 SolverSat, 80 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 23.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 53 HoareAnnotationTreeSize, 16 FomulaSimplifications, 738 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 144.8s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 52108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 33/48 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...