/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=1.0 --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 09:09:08,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:09:08,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:09:08,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:09:08,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:09:08,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:09:08,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:09:08,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:09:08,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:09:08,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:09:08,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:09:08,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:09:08,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:09:08,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:09:08,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:09:08,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:09:08,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:09:08,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:09:08,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:09:08,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:09:08,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:09:08,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:09:08,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:09:08,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:09:08,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:09:08,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:09:08,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:09:08,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:09:08,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:09:08,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:09:08,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:09:08,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:09:08,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:09:08,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:09:08,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:09:08,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:09:08,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:09:08,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:09:08,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:09:08,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:09:08,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:09:08,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:09:08,616 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:09:08,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:09:08,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:09:08,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:09:08,618 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:09:08,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:09:08,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:09:08,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:09:08,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:09:08,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:09:08,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:09:08,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:09:08,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:09:08,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:09:08,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:09:08,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:09:08,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:09:08,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:09:08,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:09:08,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:09:08,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:09:08,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:09:08,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:09:08,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:09:08,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:09:08,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:09:08,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:09:08,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:09:08,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:09:08,624 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 09:09:09,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:09:09,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:09:09,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:09:09,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:09:09,150 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:09:09,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 09:09:09,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5058ca66b/3b50938e45ee4fd2b40b8c38e67dbf8e/FLAGe3fc1ebc5 [2020-09-25 09:09:09,801 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:09:09,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 09:09:09,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5058ca66b/3b50938e45ee4fd2b40b8c38e67dbf8e/FLAGe3fc1ebc5 [2020-09-25 09:09:10,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5058ca66b/3b50938e45ee4fd2b40b8c38e67dbf8e [2020-09-25 09:09:10,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:09:10,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:09:10,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:09:10,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:09:10,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:09:10,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180772d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10, skipping insertion in model container [2020-09-25 09:09:10,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:09:10,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:09:10,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:09:10,585 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:09:10,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:09:10,766 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:09:10,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10 WrapperNode [2020-09-25 09:09:10,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:09:10,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:09:10,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:09:10,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:09:10,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (1/1) ... [2020-09-25 09:09:10,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:09:10,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:09:10,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:09:10,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:09:10,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (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 09:09:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:09:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:09:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 09:09:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-09-25 09:09:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-09-25 09:09:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:09:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:09:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 09:09:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:09:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-09-25 09:09:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:09:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-09-25 09:09:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:09:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:09:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:09:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:09:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:09:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:09:11,395 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:09:11,395 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-09-25 09:09:11,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:09:11 BoogieIcfgContainer [2020-09-25 09:09:11,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:09:11,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:09:11,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:09:11,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:09:11,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:09:10" (1/3) ... [2020-09-25 09:09:11,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c376f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:09:11, skipping insertion in model container [2020-09-25 09:09:11,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:10" (2/3) ... [2020-09-25 09:09:11,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c376f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:09:11, skipping insertion in model container [2020-09-25 09:09:11,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:09:11" (3/3) ... [2020-09-25 09:09:11,419 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-09-25 09:09:11,431 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:09:11,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:09:11,464 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:09:11,494 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:09:11,495 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:09:11,495 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:09:11,495 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:09:11,495 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:09:11,495 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:09:11,495 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:09:11,495 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:09:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-09-25 09:09:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 09:09:11,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:11,532 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 09:09:11,533 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:11,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:11,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times [2020-09-25 09:09:11,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:11,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706842235] [2020-09-25 09:09:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:11,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:12,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:12,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:09:12,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:09:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 09:09:12,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:12,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:12,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 09:09:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:12,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:09:12,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:12,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:12,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:12,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:12,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:09:12,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:12,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:12,342 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 09:09:12,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706842235] [2020-09-25 09:09:12,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:09:12,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 09:09:12,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804817830] [2020-09-25 09:09:12,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 09:09:12,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:12,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 09:09:12,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 09:09:12,373 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2020-09-25 09:09:12,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:12,721 INFO L93 Difference]: Finished difference Result 245 states and 295 transitions. [2020-09-25 09:09:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 09:09:12,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 09:09:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:12,740 INFO L225 Difference]: With dead ends: 245 [2020-09-25 09:09:12,740 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 09:09:12,746 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 09:09:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 09:09:12,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-25 09:09:12,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-25 09:09:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2020-09-25 09:09:12,810 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 23 [2020-09-25 09:09:12,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:12,810 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2020-09-25 09:09:12,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 09:09:12,811 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2020-09-25 09:09:12,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 09:09:12,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:12,814 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 09:09:12,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:09:12,815 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:12,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:12,815 INFO L82 PathProgramCache]: Analyzing trace with hash -119454780, now seen corresponding path program 1 times [2020-09-25 09:09:12,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:12,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252999209] [2020-09-25 09:09:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:12,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:12,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:12,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:13,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:13,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:09:13,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:09:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-25 09:09:13,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:13,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:09:13,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 09:09:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:09:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:13,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:13,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:13,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:13,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:13,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:09:13,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:13,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:13,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:13,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:13,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:13,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:13,281 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 09:09:13,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252999209] [2020-09-25 09:09:13,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:09:13,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:09:13,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868890216] [2020-09-25 09:09:13,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:09:13,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:13,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:09:13,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:09:13,286 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 6 states. [2020-09-25 09:09:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:13,706 INFO L93 Difference]: Finished difference Result 240 states and 269 transitions. [2020-09-25 09:09:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:09:13,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-09-25 09:09:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:13,712 INFO L225 Difference]: With dead ends: 240 [2020-09-25 09:09:13,713 INFO L226 Difference]: Without dead ends: 135 [2020-09-25 09:09:13,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:09:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-25 09:09:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-09-25 09:09:13,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 09:09:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-09-25 09:09:13,752 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 23 [2020-09-25 09:09:13,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:13,752 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-09-25 09:09:13,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:09:13,752 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-09-25 09:09:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 09:09:13,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:13,755 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 09:09:13,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:09:13,756 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:13,757 INFO L82 PathProgramCache]: Analyzing trace with hash 23578911, now seen corresponding path program 1 times [2020-09-25 09:09:13,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:13,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787751544] [2020-09-25 09:09:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:13,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:13,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:13,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:14,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:18,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:18,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:09:18,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:09:18,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:09:18,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:18,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:09:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 09:09:18,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:09:18,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:18,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:18,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:18,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:18,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:18,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:09:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:18,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:18,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:09:18,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:09:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:18,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:18,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:18,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:09:18,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:18,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:09:18,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:18,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:09:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:18,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:09:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:18,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 09:09:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:18,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:18,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:09:18,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:09:18,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:18,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:09:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:18,939 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 09:09:18,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787751544] [2020-09-25 09:09:18,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:09:18,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:09:18,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462959522] [2020-09-25 09:09:18,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:09:18,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:18,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:09:18,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:09:18,943 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 6 states. [2020-09-25 09:09:19,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:19,396 INFO L93 Difference]: Finished difference Result 236 states and 266 transitions. [2020-09-25 09:09:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:09:19,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-09-25 09:09:19,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:19,400 INFO L225 Difference]: With dead ends: 236 [2020-09-25 09:09:19,401 INFO L226 Difference]: Without dead ends: 158 [2020-09-25 09:09:19,402 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 09:09:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-25 09:09:19,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 128. [2020-09-25 09:09:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 09:09:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2020-09-25 09:09:19,417 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 59 [2020-09-25 09:09:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:19,418 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2020-09-25 09:09:19,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:09:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2020-09-25 09:09:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 09:09:19,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:19,420 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 09:09:19,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:09:19,421 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:19,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:19,421 INFO L82 PathProgramCache]: Analyzing trace with hash 514154539, now seen corresponding path program 1 times [2020-09-25 09:09:19,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:19,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241093652] [2020-09-25 09:09:19,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:19,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:19,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:19,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:20,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:24,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:24,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 09:09:24,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:09:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:09:24,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:24,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:09:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:09:24,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:09:24,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:24,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:24,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:24,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:24,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:09:24,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:24,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:24,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:24,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:09:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:24,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:24,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:09:24,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:09:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:24,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:09:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 09:09:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:24,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:24,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:24,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:09:24,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:24,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:09:24,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:24,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:09:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:24,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:24,542 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 09:09:24,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241093652] [2020-09-25 09:09:24,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:09:24,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:09:24,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691914573] [2020-09-25 09:09:24,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:09:24,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:24,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:09:24,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:09:24,547 INFO L87 Difference]: Start difference. First operand 128 states and 141 transitions. Second operand 5 states. [2020-09-25 09:09:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:25,004 INFO L93 Difference]: Finished difference Result 291 states and 327 transitions. [2020-09-25 09:09:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:09:25,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-09-25 09:09:25,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:25,007 INFO L225 Difference]: With dead ends: 291 [2020-09-25 09:09:25,007 INFO L226 Difference]: Without dead ends: 182 [2020-09-25 09:09:25,011 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 09:09:25,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-25 09:09:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 129. [2020-09-25 09:09:25,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-25 09:09:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2020-09-25 09:09:25,041 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 62 [2020-09-25 09:09:25,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:25,042 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2020-09-25 09:09:25,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:09:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2020-09-25 09:09:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 09:09:25,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:25,045 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 09:09:25,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:09:25,046 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:25,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:25,047 INFO L82 PathProgramCache]: Analyzing trace with hash -2087403204, now seen corresponding path program 1 times [2020-09-25 09:09:25,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:25,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990773401] [2020-09-25 09:09:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:25,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:25,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:25,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:25,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:25,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:30,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 09:09:30,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:09:30,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:09:30,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:30,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:30,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:09:30,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:09:30,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:09:30,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:09:30,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:30,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:30,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:09:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:30,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:30,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:30,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:09:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 09:09:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:30,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:30,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:09:30,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:30,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:09:30,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:30,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:30,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:30,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:09:30,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:30,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 09:09:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:30,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:30,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:09:30,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:09:30,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:30,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:09:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:30,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:09:30,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990773401] [2020-09-25 09:09:30,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:09:30,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:09:30,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536786122] [2020-09-25 09:09:30,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:09:30,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:30,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:09:30,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:09:30,213 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand 7 states. [2020-09-25 09:09:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:30,617 INFO L93 Difference]: Finished difference Result 298 states and 334 transitions. [2020-09-25 09:09:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:09:30,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 09:09:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:30,621 INFO L225 Difference]: With dead ends: 298 [2020-09-25 09:09:30,622 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 09:09:30,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:09:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 09:09:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 136. [2020-09-25 09:09:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-25 09:09:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2020-09-25 09:09:30,644 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 69 [2020-09-25 09:09:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:30,644 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2020-09-25 09:09:30,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:09:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2020-09-25 09:09:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 09:09:30,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:30,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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 09:09:30,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:09:30,650 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:30,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:30,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1145423093, now seen corresponding path program 2 times [2020-09-25 09:09:30,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:30,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138174273] [2020-09-25 09:09:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:30,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:31,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:35,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:35,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 09:09:35,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:09:35,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 09:09:35,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:35,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:09:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 09:09:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:09:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:35,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:35,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:35,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:35,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:35,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:35,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:09:35,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:35,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 09:09:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:35,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:35,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:35,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:09:35,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:35,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:09:35,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:35,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:35,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:09:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:35,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 09:09:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:35,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:35,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:35,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:09:35,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:09:35,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:35,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:09:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:35,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:09:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 09:09:35,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138174273] [2020-09-25 09:09:35,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:09:35,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:09:35,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982647030] [2020-09-25 09:09:35,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:09:35,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:35,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:09:35,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:09:35,805 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand 5 states. [2020-09-25 09:09:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:36,214 INFO L93 Difference]: Finished difference Result 277 states and 309 transitions. [2020-09-25 09:09:36,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:09:36,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-09-25 09:09:36,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:36,219 INFO L225 Difference]: With dead ends: 277 [2020-09-25 09:09:36,219 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 09:09:36,220 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 09:09:36,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 09:09:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 137. [2020-09-25 09:09:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-25 09:09:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 150 transitions. [2020-09-25 09:09:36,237 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 150 transitions. Word has length 76 [2020-09-25 09:09:36,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:36,238 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 150 transitions. [2020-09-25 09:09:36,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:09:36,239 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 150 transitions. [2020-09-25 09:09:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 09:09:36,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:09:36,245 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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 09:09:36,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:09:36,246 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:09:36,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:09:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash -965257955, now seen corresponding path program 1 times [2020-09-25 09:09:36,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:09:36,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995044684] [2020-09-25 09:09:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:09:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:36,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:36,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:36,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:40,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:41,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:41,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 09:09:41,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:09:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 09:09:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:41,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:09:41,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 09:09:41,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 09:09:41,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:09:41,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:09:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:41,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:41,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:09:41,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:09:41,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:41,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:09:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:41,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-25 09:09:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:41,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:41,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:41,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:09:41,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:09:41,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:41,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:09:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:09:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:09:41,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 09:09:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:09:41,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:09:41,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:09:41,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:09:41,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:09:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:09:41,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:09:41,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:09:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:09:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 09:09:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:09:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:09:41,455 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 09:09:41,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995044684] [2020-09-25 09:09:41,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:09:41,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:09:41,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242039113] [2020-09-25 09:09:41,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:09:41,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:09:41,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:09:41,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:09:41,458 INFO L87 Difference]: Start difference. First operand 137 states and 150 transitions. Second operand 8 states. [2020-09-25 09:09:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:09:41,725 INFO L93 Difference]: Finished difference Result 181 states and 198 transitions. [2020-09-25 09:09:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:09:41,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-25 09:09:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:09:41,726 INFO L225 Difference]: With dead ends: 181 [2020-09-25 09:09:41,726 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:09:41,729 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 09:09:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:09:41,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:09:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:09:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:09:41,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2020-09-25 09:09:41,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:09:41,731 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:09:41,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:09:41,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:09:41,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:09:41,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:09:41,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:09:41,993 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 09:09:41,993 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 09:09:41,993 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-09-25 09:09:41,994 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-09-25 09:09:41,994 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-09-25 09:09:41,994 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-25 09:09:41,994 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 09:09:41,994 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-25 09:09:41,995 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 09:09:41,995 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed. [2020-09-25 09:09:41,995 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 09:09:41,995 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 09:09:41,995 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 09:09:41,995 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 09:09:41,995 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 09:09:41,996 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 09:09:41,996 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 09:09:41,996 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 09:09:41,996 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 09:09:41,996 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 09:09:41,996 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 09:09:41,997 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 09:09:41,997 INFO L271 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true [2020-09-25 09:09:41,997 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-09-25 09:09:41,997 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 09:09:41,997 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed. [2020-09-25 09:09:41,997 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 09:09:41,997 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed. [2020-09-25 09:09:41,998 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-09-25 09:09:41,998 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 09:09:41,998 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 09:09:41,998 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 09:09:41,998 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 09:09:41,998 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-09-25 09:09:41,998 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 09:09:41,999 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-09-25 09:09:41,999 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false [2020-09-25 09:09:41,999 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed. [2020-09-25 09:09:41,999 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed. [2020-09-25 09:09:41,999 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-09-25 09:09:41,999 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed. [2020-09-25 09:09:42,000 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed. [2020-09-25 09:09:42,000 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)) [2020-09-25 09:09:42,000 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 09:09:42,000 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2020-09-25 09:09:42,000 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed. [2020-09-25 09:09:42,000 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed. [2020-09-25 09:09:42,001 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)) [2020-09-25 09:09:42,001 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed. [2020-09-25 09:09:42,001 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-09-25 09:09:42,001 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 09:09:42,001 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 09:09:42,001 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)) [2020-09-25 09:09:42,001 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2020-09-25 09:09:42,002 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 09:09:42,002 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 09:09:42,002 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed. [2020-09-25 09:09:42,002 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed. [2020-09-25 09:09:42,002 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed. [2020-09-25 09:09:42,002 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false [2020-09-25 09:09:42,002 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 09:09:42,003 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2020-09-25 09:09:42,003 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-25 09:09:42,003 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed. [2020-09-25 09:09:42,003 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false [2020-09-25 09:09:42,003 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 09:09:42,003 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 09:09:42,003 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-09-25 09:09:42,004 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false [2020-09-25 09:09:42,004 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed. [2020-09-25 09:09:42,004 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed. [2020-09-25 09:09:42,004 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 09:09:42,004 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-25 09:09:42,004 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-25 09:09:42,005 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 09:09:42,005 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 09:09:42,005 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 09:09:42,005 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false [2020-09-25 09:09:42,005 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-25 09:09:42,005 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed. [2020-09-25 09:09:42,005 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 09:09:42,005 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-09-25 09:09:42,006 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 09:09:42,006 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-25 09:09:42,006 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (<= main_~n~0 0) [2020-09-25 09:09:42,006 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed. [2020-09-25 09:09:42,006 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-09-25 09:09:42,006 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed. [2020-09-25 09:09:42,006 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-25 09:09:42,007 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)) [2020-09-25 09:09:42,007 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed. [2020-09-25 09:09:42,007 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 09:09:42,007 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 09:09:42,007 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 09:09:42,007 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 09:09:42,007 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)) [2020-09-25 09:09:42,007 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-25 09:09:42,008 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed. [2020-09-25 09:09:42,008 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-25 09:09:42,008 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-25 09:09:42,008 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-25 09:09:42,008 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 09:09:42,008 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-25 09:09:42,009 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed. [2020-09-25 09:09:42,009 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 09:09:42,009 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 09:09:42,009 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-09-25 09:09:42,009 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 09:09:42,009 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 09:09:42,009 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 09:09:42,010 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed. [2020-09-25 09:09:42,010 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 09:09:42,010 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false [2020-09-25 09:09:42,010 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-25 09:09:42,010 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-25 09:09:42,010 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed. [2020-09-25 09:09:42,010 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-25 09:09:42,011 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed. [2020-09-25 09:09:42,012 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: false [2020-09-25 09:09:42,012 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 09:09:42,012 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 09:09:42,012 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 09:09:42,012 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 09:09:42,012 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 09:09:42,013 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 09:09:42,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:09:42 BoogieIcfgContainer [2020-09-25 09:09:42,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:09:42,041 INFO L168 Benchmark]: Toolchain (without parser) took 31848.56 ms. Allocated memory was 146.8 MB in the beginning and 380.1 MB in the end (delta: 233.3 MB). Free memory was 102.2 MB in the beginning and 122.0 MB in the end (delta: -19.7 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. [2020-09-25 09:09:42,042 INFO L168 Benchmark]: CDTParser took 1.89 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:09:42,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.81 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.6 MB in the beginning and 182.4 MB in the end (delta: -80.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-09-25 09:09:42,044 INFO L168 Benchmark]: Boogie Preprocessor took 52.55 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 180.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:09:42,045 INFO L168 Benchmark]: RCFGBuilder took 584.90 ms. Allocated memory is still 205.0 MB. Free memory was 180.4 MB in the beginning and 151.2 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-09-25 09:09:42,046 INFO L168 Benchmark]: TraceAbstraction took 30630.33 ms. Allocated memory was 205.0 MB in the beginning and 380.1 MB in the end (delta: 175.1 MB). Free memory was 151.2 MB in the beginning and 122.0 MB in the end (delta: 29.3 MB). Peak memory consumption was 204.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:09:42,050 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.89 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 570.81 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.6 MB in the beginning and 182.4 MB in the end (delta: -80.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.55 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 180.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 584.90 ms. Allocated memory is still 205.0 MB. Free memory was 180.4 MB in the beginning and 151.2 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30630.33 ms. Allocated memory was 205.0 MB in the beginning and 380.1 MB in the end (delta: 175.1 MB). Free memory was 151.2 MB in the beginning and 122.0 MB in the end (delta: 29.3 MB). Peak memory consumption was 204.4 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 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: n <= x && x <= 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 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: n <= x && x <= 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: 30.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 756 SDtfs, 792 SDslu, 908 SDs, 0 SdLazy, 1260 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=6, 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, 7 MinimizatonAttempts, 192 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 65 PreInvPairs, 75 NumberOfFragments, 89 HoareAnnotationTreeSize, 65 FomulaSimplifications, 282 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 26.8s InterpolantComputationTime, 395 NumberOfCodeBlocks, 395 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 40038 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 19/20 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...