/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:00:10,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:00:10,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:00:10,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:00:10,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:00:10,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:00:10,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:00:10,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:00:10,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:00:10,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:00:10,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:00:10,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:00:10,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:00:10,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:00:10,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:00:10,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:00:10,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:00:10,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:00:10,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:00:10,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:00:10,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:00:10,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:00:10,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:00:10,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:00:10,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:00:10,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:00:10,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:00:10,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:00:10,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:00:10,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:00:10,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:00:10,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:00:10,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:00:10,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:00:10,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:00:10,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:00:10,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:00:10,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:00:10,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:00:10,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:00:10,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:00:10,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:00:10,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:00:10,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:00:10,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:00:10,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:00:10,517 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:00:10,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:00:10,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:00:10,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:00:10,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:00:10,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:00:10,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:00:10,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:00:10,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:00:10,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:00:10,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:00:10,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:00:10,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:00:10,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:00:10,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:00:10,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:00:10,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:00:10,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:00:10,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:00:10,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:00:10,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:00:10,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:00:10,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:00:10,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:00:10,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:00:10,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 08:00:11,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:00:11,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:00:11,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:00:11,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:00:11,042 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:00:11,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 08:00:11,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3389770c5/60aa7eedbd4d448a843dbe227bedce1f/FLAGe412834c5 [2020-09-25 08:00:11,683 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:00:11,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 08:00:11,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3389770c5/60aa7eedbd4d448a843dbe227bedce1f/FLAGe412834c5 [2020-09-25 08:00:12,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3389770c5/60aa7eedbd4d448a843dbe227bedce1f [2020-09-25 08:00:12,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:00:12,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:00:12,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:00:12,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:00:12,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:00:12,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12, skipping insertion in model container [2020-09-25 08:00:12,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:00:12,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:00:12,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:00:12,362 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:00:12,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:00:12,409 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:00:12,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12 WrapperNode [2020-09-25 08:00:12,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:00:12,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:00:12,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:00:12,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:00:12,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... [2020-09-25 08:00:12,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:00:12,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:00:12,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:00:12,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:00:12,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:00:12,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:00:12,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:00:12,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 08:00:12,645 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-09-25 08:00:12,645 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-09-25 08:00:12,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:00:12,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:00:12,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 08:00:12,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:00:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-09-25 08:00:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:00:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-09-25 08:00:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:00:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:00:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:00:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:00:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:00:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:00:13,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:00:13,163 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-09-25 08:00:13,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:00:13 BoogieIcfgContainer [2020-09-25 08:00:13,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:00:13,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:00:13,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:00:13,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:00:13,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:00:12" (1/3) ... [2020-09-25 08:00:13,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7468d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:00:13, skipping insertion in model container [2020-09-25 08:00:13,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:12" (2/3) ... [2020-09-25 08:00:13,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7468d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:00:13, skipping insertion in model container [2020-09-25 08:00:13,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:00:13" (3/3) ... [2020-09-25 08:00:13,180 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-09-25 08:00:13,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:00:13,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:00:13,225 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:00:13,256 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:00:13,256 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:00:13,257 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:00:13,257 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:00:13,257 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:00:13,257 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:00:13,257 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:00:13,257 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:00:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-09-25 08:00:13,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 08:00:13,291 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:00:13,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:00:13,293 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:00:13,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:00:13,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times [2020-09-25 08:00:13,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:00:13,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219148639] [2020-09-25 08:00:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:00:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:13,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:13,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:13,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:13,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:00:13,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:00:13,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-09-25 08:00:13,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:13,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:00:13,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 08:00:14,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:00:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:14,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:14,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:14,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:00:14,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:14,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:00:14,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:14,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:00:14,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219148639] [2020-09-25 08:00:14,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:00:14,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:00:14,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888665139] [2020-09-25 08:00:14,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:00:14,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:00:14,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:00:14,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:00:14,088 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2020-09-25 08:00:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:00:14,409 INFO L93 Difference]: Finished difference Result 245 states and 295 transitions. [2020-09-25 08:00:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:00:14,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 08:00:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:00:14,427 INFO L225 Difference]: With dead ends: 245 [2020-09-25 08:00:14,427 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 08:00:14,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:00:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 08:00:14,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-25 08:00:14,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-25 08:00:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2020-09-25 08:00:14,504 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 23 [2020-09-25 08:00:14,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:00:14,505 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2020-09-25 08:00:14,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:00:14,505 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2020-09-25 08:00:14,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 08:00:14,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:00:14,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:00:14,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:00:14,509 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:00:14,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:00:14,510 INFO L82 PathProgramCache]: Analyzing trace with hash -119454780, now seen corresponding path program 1 times [2020-09-25 08:00:14,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:00:14,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053386173] [2020-09-25 08:00:14,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:00:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:14,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:14,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:15,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:00:15,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:00:15,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-09-25 08:00:15,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:15,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:00:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 08:00:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:00:15,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:00:15,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:00:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:15,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:00:15,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:00:15,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:15,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:00:15,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053386173] [2020-09-25 08:00:15,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:00:15,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:00:15,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919647129] [2020-09-25 08:00:15,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:00:15,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:00:15,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:00:15,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:00:15,102 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 5 states. [2020-09-25 08:00:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:00:15,487 INFO L93 Difference]: Finished difference Result 240 states and 269 transitions. [2020-09-25 08:00:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:00:15,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-09-25 08:00:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:00:15,490 INFO L225 Difference]: With dead ends: 240 [2020-09-25 08:00:15,491 INFO L226 Difference]: Without dead ends: 135 [2020-09-25 08:00:15,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:00:15,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-25 08:00:15,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-09-25 08:00:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 08:00:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-09-25 08:00:15,511 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 23 [2020-09-25 08:00:15,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:00:15,512 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-09-25 08:00:15,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:00:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-09-25 08:00:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 08:00:15,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:00:15,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:00:15,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:00:15,515 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:00:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:00:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash 23578911, now seen corresponding path program 1 times [2020-09-25 08:00:15,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:00:15,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285357788] [2020-09-25 08:00:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:00:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:15,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:20,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:20,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 08:00:20,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:00:20,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 08:00:20,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:20,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:00:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 08:00:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:00:20,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:20,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:00:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:20,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:20,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:20,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:00:20,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:20,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:00:20,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:20,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:20,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:20,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:00:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:20,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:20,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:20,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:00:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:00:20,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:20,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:00:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:00:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:20,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 08:00:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:20,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:20,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:20,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:00:20,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:00:20,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:20,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:00:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:20,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:20,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:00:20,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285357788] [2020-09-25 08:00:20,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:00:20,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:00:20,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16300252] [2020-09-25 08:00:20,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:00:20,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:00:20,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:00:20,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:00:20,678 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 6 states. [2020-09-25 08:00:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:00:21,221 INFO L93 Difference]: Finished difference Result 236 states and 266 transitions. [2020-09-25 08:00:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:00:21,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-09-25 08:00:21,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:00:21,230 INFO L225 Difference]: With dead ends: 236 [2020-09-25 08:00:21,230 INFO L226 Difference]: Without dead ends: 158 [2020-09-25 08:00:21,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:00:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-25 08:00:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 128. [2020-09-25 08:00:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 08:00:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2020-09-25 08:00:21,277 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 59 [2020-09-25 08:00:21,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:00:21,278 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2020-09-25 08:00:21,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:00:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2020-09-25 08:00:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 08:00:21,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:00:21,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:00:21,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:00:21,288 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:00:21,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:00:21,289 INFO L82 PathProgramCache]: Analyzing trace with hash 514154539, now seen corresponding path program 1 times [2020-09-25 08:00:21,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:00:21,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586915271] [2020-09-25 08:00:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:00:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:21,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:21,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:22,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:22,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:26,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:26,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 08:00:26,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:00:26,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:00:26,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:26,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:26,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:00:26,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:00:26,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:00:26,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:26,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:00:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:26,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:26,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:26,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:00:26,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:26,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:00:26,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:26,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:26,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:26,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:26,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:00:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:26,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:26,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:26,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 08:00:26,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:26,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:00:26,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:26,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:00:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:26,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:26,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 08:00:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:26,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:26,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:00:26,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:26,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:00:26,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:26,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:26,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:26,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:00:26,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:26,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:00:26,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586915271] [2020-09-25 08:00:26,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:00:26,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:00:26,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635328560] [2020-09-25 08:00:26,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:00:26,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:00:26,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:00:26,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:00:26,419 INFO L87 Difference]: Start difference. First operand 128 states and 141 transitions. Second operand 5 states. [2020-09-25 08:00:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:00:26,895 INFO L93 Difference]: Finished difference Result 291 states and 327 transitions. [2020-09-25 08:00:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:00:26,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-09-25 08:00:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:00:26,899 INFO L225 Difference]: With dead ends: 291 [2020-09-25 08:00:26,899 INFO L226 Difference]: Without dead ends: 182 [2020-09-25 08:00:26,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:00:26,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-25 08:00:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 129. [2020-09-25 08:00:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-25 08:00:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2020-09-25 08:00:26,938 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 62 [2020-09-25 08:00:26,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:00:26,938 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2020-09-25 08:00:26,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:00:26,939 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2020-09-25 08:00:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:00:26,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:00:26,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:00:26,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:00:26,945 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:00:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:00:26,946 INFO L82 PathProgramCache]: Analyzing trace with hash -2087403204, now seen corresponding path program 1 times [2020-09-25 08:00:26,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:00:26,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810085906] [2020-09-25 08:00:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:00:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:27,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:27,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:27,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:27,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:31,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:31,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 08:00:31,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:00:31,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:00:31,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:31,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:31,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:00:31,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 08:00:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:00:31,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:32,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:00:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:32,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:32,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:32,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:00:32,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:00:32,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:32,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:32,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:32,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:32,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:00:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:32,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:32,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 08:00:32,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:00:32,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:32,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:00:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:32,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 08:00:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:32,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:32,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:32,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:00:32,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:32,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:00:32,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:32,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:00:32,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:32,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:32,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:00:32,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810085906] [2020-09-25 08:00:32,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:00:32,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:00:32,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924970684] [2020-09-25 08:00:32,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:00:32,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:00:32,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:00:32,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:00:32,078 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand 5 states. [2020-09-25 08:00:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:00:32,376 INFO L93 Difference]: Finished difference Result 272 states and 304 transitions. [2020-09-25 08:00:32,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:00:32,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-09-25 08:00:32,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:00:32,378 INFO L225 Difference]: With dead ends: 272 [2020-09-25 08:00:32,381 INFO L226 Difference]: Without dead ends: 175 [2020-09-25 08:00:32,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:00:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-25 08:00:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 130. [2020-09-25 08:00:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-25 08:00:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2020-09-25 08:00:32,405 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 69 [2020-09-25 08:00:32,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:00:32,408 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2020-09-25 08:00:32,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:00:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2020-09-25 08:00:32,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 08:00:32,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:00:32,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:00:32,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:00:32,412 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:00:32,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:00:32,413 INFO L82 PathProgramCache]: Analyzing trace with hash 351512012, now seen corresponding path program 1 times [2020-09-25 08:00:32,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:00:32,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318327292] [2020-09-25 08:00:32,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:00:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:32,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:32,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:32,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:33,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:33,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:37,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:37,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 08:00:37,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:00:37,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:00:37,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:37,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:00:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 08:00:37,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:00:37,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:00:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:37,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:37,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:00:37,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:00:37,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:37,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:00:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:37,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 08:00:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:37,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:37,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:37,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 08:00:37,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:37,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:00:37,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:37,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:00:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 08:00:37,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:00:37,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:37,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 08:00:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:00:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:00:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:00:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:00:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:00:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:00:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:00:37,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:00:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:00:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:00:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:00:37,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:00:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:00:37,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318327292] [2020-09-25 08:00:37,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:00:37,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:00:37,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880765224] [2020-09-25 08:00:37,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:00:37,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:00:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:00:37,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:00:37,606 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand 8 states. [2020-09-25 08:00:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:00:37,886 INFO L93 Difference]: Finished difference Result 176 states and 193 transitions. [2020-09-25 08:00:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:00:37,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-09-25 08:00:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:00:37,888 INFO L225 Difference]: With dead ends: 176 [2020-09-25 08:00:37,889 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:00:37,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:00:37,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:00:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:00:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:00:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:00:37,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-09-25 08:00:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:00:37,891 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:00:37,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:00:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:00:37,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:00:37,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:00:37,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:00:38,252 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 08:00:38,252 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 08:00:38,252 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-09-25 08:00:38,253 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-09-25 08:00:38,253 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-09-25 08:00:38,253 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-25 08:00:38,254 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 08:00:38,254 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-25 08:00:38,254 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (let ((.cse0 (= elem_exists_~size |elem_exists_#in~size|))) (or (and (<= 0 elem_exists_~i~0) .cse0) (and .cse0 (<= 1 |elem_exists_#in~size|)))) [2020-09-25 08:00:38,255 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed. [2020-09-25 08:00:38,255 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 08:00:38,255 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 08:00:38,255 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 08:00:38,256 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 08:00:38,257 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 08:00:38,257 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 08:00:38,257 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 08:00:38,258 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 08:00:38,258 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 08:00:38,258 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 08:00:38,258 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 08:00:38,259 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:00:38,259 INFO L271 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true [2020-09-25 08:00:38,260 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-09-25 08:00:38,260 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 08:00:38,260 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed. [2020-09-25 08:00:38,260 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 08:00:38,261 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed. [2020-09-25 08:00:38,261 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-09-25 08:00:38,261 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:00:38,261 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 08:00:38,262 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 08:00:38,263 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 08:00:38,263 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-09-25 08:00:38,263 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 08:00:38,263 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-09-25 08:00:38,264 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false [2020-09-25 08:00:38,264 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed. [2020-09-25 08:00:38,264 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed. [2020-09-25 08:00:38,265 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-09-25 08:00:38,266 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed. [2020-09-25 08:00:38,266 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed. [2020-09-25 08:00:38,266 INFO L264 CegarLoopResult]: At program point L44-5(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 08:00:38,266 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 08:00:38,267 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2020-09-25 08:00:38,267 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed. [2020-09-25 08:00:38,267 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed. [2020-09-25 08:00:38,268 INFO L264 CegarLoopResult]: At program point L36-6(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 08:00:38,268 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed. [2020-09-25 08:00:38,268 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-09-25 08:00:38,268 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 08:00:38,269 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 08:00:38,269 INFO L264 CegarLoopResult]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 08:00:38,269 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2020-09-25 08:00:38,269 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 08:00:38,269 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 08:00:38,269 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed. [2020-09-25 08:00:38,270 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed. [2020-09-25 08:00:38,270 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed. [2020-09-25 08:00:38,270 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false [2020-09-25 08:00:38,271 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 08:00:38,271 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2020-09-25 08:00:38,271 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-25 08:00:38,271 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed. [2020-09-25 08:00:38,272 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false [2020-09-25 08:00:38,272 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 08:00:38,272 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 08:00:38,272 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-09-25 08:00:38,272 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false [2020-09-25 08:00:38,272 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed. [2020-09-25 08:00:38,272 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed. [2020-09-25 08:00:38,273 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 08:00:38,273 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-25 08:00:38,273 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-25 08:00:38,273 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 08:00:38,273 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 56) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-25 08:00:38,273 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 08:00:38,273 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false [2020-09-25 08:00:38,274 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-25 08:00:38,274 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed. [2020-09-25 08:00:38,274 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 08:00:38,274 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-09-25 08:00:38,274 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 08:00:38,274 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-25 08:00:38,274 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (= main_~n~0 0) [2020-09-25 08:00:38,275 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed. [2020-09-25 08:00:38,275 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-09-25 08:00:38,275 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed. [2020-09-25 08:00:38,275 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-25 08:00:38,275 INFO L264 CegarLoopResult]: At program point L40-5(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 08:00:38,275 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed. [2020-09-25 08:00:38,275 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 08:00:38,276 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 08:00:38,276 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 08:00:38,276 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 08:00:38,276 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0) (= main_~n~0 0)) [2020-09-25 08:00:38,276 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-25 08:00:38,276 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed. [2020-09-25 08:00:38,277 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-25 08:00:38,277 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-25 08:00:38,277 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-25 08:00:38,277 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 08:00:38,278 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-25 08:00:38,279 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed. [2020-09-25 08:00:38,279 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 08:00:38,279 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 08:00:38,279 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-09-25 08:00:38,280 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 08:00:38,280 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 08:00:38,280 INFO L264 CegarLoopResult]: At program point L50-5(lines 50 54) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-09-25 08:00:38,280 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed. [2020-09-25 08:00:38,280 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 08:00:38,280 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed. [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed. [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 08:00:38,281 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 08:00:38,282 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed. [2020-09-25 08:00:38,282 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 08:00:38,282 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed. [2020-09-25 08:00:38,282 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-25 08:00:38,282 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed. [2020-09-25 08:00:38,282 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: false [2020-09-25 08:00:38,283 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 08:00:38,283 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 08:00:38,283 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 08:00:38,283 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 08:00:38,284 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 08:00:38,284 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 08:00:38,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:00:38 BoogieIcfgContainer [2020-09-25 08:00:38,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:00:38,335 INFO L168 Benchmark]: Toolchain (without parser) took 26299.95 ms. Allocated memory was 147.3 MB in the beginning and 375.4 MB in the end (delta: 228.1 MB). Free memory was 102.4 MB in the beginning and 250.6 MB in the end (delta: -148.2 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:00:38,337 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:00:38,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.10 ms. Allocated memory is still 147.3 MB. Free memory was 101.8 MB in the beginning and 90.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:00:38,347 INFO L168 Benchmark]: Boogie Preprocessor took 147.95 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 90.6 MB in the beginning and 180.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:00:38,348 INFO L168 Benchmark]: RCFGBuilder took 610.74 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 151.1 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:00:38,349 INFO L168 Benchmark]: TraceAbstraction took 25158.84 ms. Allocated memory was 203.4 MB in the beginning and 375.4 MB in the end (delta: 172.0 MB). Free memory was 151.1 MB in the beginning and 250.6 MB in the end (delta: -99.4 MB). Peak memory consumption was 72.5 MB. Max. memory is 7.1 GB. [2020-09-25 08:00:38,361 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 374.10 ms. Allocated memory is still 147.3 MB. Free memory was 101.8 MB in the beginning and 90.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.95 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 90.6 MB in the beginning and 180.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 610.74 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 151.1 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25158.84 ms. Allocated memory was 203.4 MB in the beginning and 375.4 MB in the end (delta: 172.0 MB). Free memory was 151.1 MB in the beginning and 250.6 MB in the end (delta: -99.4 MB). Peak memory consumption was 72.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (n <= x && x <= 0) && n == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (0 <= i && size == \old(size)) || (size == \old(size) && 1 <= \old(size)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: n == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 649 SDtfs, 603 SDslu, 661 SDs, 0 SdLazy, 964 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 141 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 58 PreInvPairs, 67 NumberOfFragments, 104 HoareAnnotationTreeSize, 58 FomulaSimplifications, 230 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 64 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 29920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 3/3 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...