/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:35:55,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:35:55,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:35:55,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:35:55,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:35:55,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:35:55,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:35:55,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:35:55,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:35:55,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:35:55,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:35:56,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:35:56,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:35:56,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:35:56,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:35:56,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:35:56,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:35:56,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:35:56,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:35:56,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:35:56,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:35:56,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:35:56,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:35:56,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:35:56,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:35:56,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:35:56,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:35:56,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:35:56,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:35:56,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:35:56,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:35:56,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:35:56,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:35:56,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:35:56,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:35:56,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:35:56,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:35:56,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:35:56,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:35:56,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:35:56,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:35:56,034 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 [2020-09-21 12:35:56,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:35:56,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:35:56,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:35:56,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:35:56,090 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:35:56,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:35:56,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:35:56,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:35:56,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:35:56,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:35:56,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:35:56,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:35:56,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:35:56,093 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:35:56,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:35:56,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:35:56,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:35:56,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:35:56,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:35:56,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:35:56,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:35:56,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:35:56,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:35:56,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:35:56,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:35:56,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:35:56,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:35:56,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:35:56,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:35:56,097 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:35:56,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:35:56,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:35:56,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:35:56,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:35:56,611 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:35:56,612 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-21 12:35:56,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b6489f76/f141b89bd5b94167b74cd9fb88f1a6f9/FLAGaebc238ed [2020-09-21 12:35:57,277 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:35:57,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-21 12:35:57,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b6489f76/f141b89bd5b94167b74cd9fb88f1a6f9/FLAGaebc238ed [2020-09-21 12:35:57,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b6489f76/f141b89bd5b94167b74cd9fb88f1a6f9 [2020-09-21 12:35:57,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:35:57,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:35:57,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:35:57,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:35:57,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:35:57,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:35:57" (1/1) ... [2020-09-21 12:35:57,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:57, skipping insertion in model container [2020-09-21 12:35:57,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:35:57" (1/1) ... [2020-09-21 12:35:57,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:35:57,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:35:57,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:35:57,939 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:35:57,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:35:58,084 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:35:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58 WrapperNode [2020-09-21 12:35:58,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:35:58,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:35:58,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:35:58,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:35:58,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (1/1) ... [2020-09-21 12:35:58,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:35:58,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:35:58,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:35:58,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:35:58,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (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 [2020-09-21 12:35:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:35:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:35:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 12:35:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:35:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:35:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:35:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 12:35:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 12:35:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-21 12:35:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:35:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:35:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:35:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:35:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:35:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:35:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:35:58,582 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:35:58,583 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:35:58,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:35:58 BoogieIcfgContainer [2020-09-21 12:35:58,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:35:58,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:35:58,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:35:58,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:35:58,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:35:57" (1/3) ... [2020-09-21 12:35:58,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a353e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:35:58, skipping insertion in model container [2020-09-21 12:35:58,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:35:58" (2/3) ... [2020-09-21 12:35:58,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a353e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:35:58, skipping insertion in model container [2020-09-21 12:35:58,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:35:58" (3/3) ... [2020-09-21 12:35:58,601 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-21 12:35:58,616 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:35:58,627 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-21 12:35:58,669 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-21 12:35:58,703 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:35:58,703 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:35:58,703 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:35:58,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:35:58,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:35:58,704 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:35:58,704 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:35:58,704 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:35:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-09-21 12:35:58,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:35:58,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:58,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:35:58,737 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1504353719, now seen corresponding path program 1 times [2020-09-21 12:35:58,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:58,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208225184] [2020-09-21 12:35:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:59,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:59,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 12:35:59,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-21 12:35:59,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:35:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:35:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:35:59,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:35:59,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:35:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:59,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:59,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:35:59,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:35:59,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:35:59,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208225184] [2020-09-21 12:35:59,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:35:59,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:35:59,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872356147] [2020-09-21 12:35:59,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:35:59,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:35:59,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:35:59,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:35:59,319 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-09-21 12:35:59,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:35:59,527 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2020-09-21 12:35:59,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:35:59,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-21 12:35:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:35:59,540 INFO L225 Difference]: With dead ends: 51 [2020-09-21 12:35:59,540 INFO L226 Difference]: Without dead ends: 33 [2020-09-21 12:35:59,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:35:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-21 12:35:59,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-21 12:35:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-21 12:35:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-09-21 12:35:59,589 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 13 [2020-09-21 12:35:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:35:59,590 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-09-21 12:35:59,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:35:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-09-21 12:35:59,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:35:59,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:35:59,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:35:59,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:35:59,591 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:35:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:35:59,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1581018098, now seen corresponding path program 1 times [2020-09-21 12:35:59,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:35:59,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360506809] [2020-09-21 12:35:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:35:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:59,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:35:59,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 12:35:59,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:35:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:35:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:35:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:59,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:35:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:35:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:35:59,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:35:59,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:35:59,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:35:59,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:35:59,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:35:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:35:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:35:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:35:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:35:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:35:59,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360506809] [2020-09-21 12:35:59,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:35:59,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:35:59,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761358184] [2020-09-21 12:35:59,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:35:59,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:35:59,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:35:59,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:35:59,868 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 5 states. [2020-09-21 12:36:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:00,046 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-09-21 12:36:00,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:00,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 12:36:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:00,068 INFO L225 Difference]: With dead ends: 51 [2020-09-21 12:36:00,068 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 12:36:00,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 12:36:00,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2020-09-21 12:36:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 12:36:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-09-21 12:36:00,080 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 14 [2020-09-21 12:36:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:00,081 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-09-21 12:36:00,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-09-21 12:36:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:36:00,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:00,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:00,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:36:00,083 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:00,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:00,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1644741047, now seen corresponding path program 1 times [2020-09-21 12:36:00,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:00,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186581472] [2020-09-21 12:36:00,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:00,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:00,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:00,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:00,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:36:00,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-21 12:36:00,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:36:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:36:00,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:36:00,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:00,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:00,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:00,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:00,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:00,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:36:00,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:00,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:00,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:00,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:00,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:00,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186581472] [2020-09-21 12:36:00,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:00,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:36:00,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858418129] [2020-09-21 12:36:00,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:36:00,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:00,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:36:00,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:36:00,369 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 4 states. [2020-09-21 12:36:00,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:00,497 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-09-21 12:36:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:36:00,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-21 12:36:00,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:00,499 INFO L225 Difference]: With dead ends: 60 [2020-09-21 12:36:00,499 INFO L226 Difference]: Without dead ends: 40 [2020-09-21 12:36:00,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:36:00,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-21 12:36:00,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-09-21 12:36:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 12:36:00,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-09-21 12:36:00,515 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 14 [2020-09-21 12:36:00,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:00,516 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-09-21 12:36:00,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:36:00,516 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-09-21 12:36:00,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 12:36:00,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:00,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:00,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:36:00,519 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:00,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:00,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1824116622, now seen corresponding path program 1 times [2020-09-21 12:36:00,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:00,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373699027] [2020-09-21 12:36:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:00,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:00,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:00,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:36:00,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 12:36:00,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:36:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:36:00,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:36:00,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:00,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:00,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:00,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:36:00,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:00,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:00,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373699027] [2020-09-21 12:36:00,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:00,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:36:00,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624176329] [2020-09-21 12:36:00,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:36:00,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:00,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:36:00,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:36:00,671 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2020-09-21 12:36:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:00,762 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2020-09-21 12:36:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:36:00,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-21 12:36:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:00,764 INFO L225 Difference]: With dead ends: 54 [2020-09-21 12:36:00,764 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 12:36:00,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:36:00,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 12:36:00,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2020-09-21 12:36:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-21 12:36:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-09-21 12:36:00,771 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 15 [2020-09-21 12:36:00,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:00,771 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-09-21 12:36:00,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:36:00,772 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-09-21 12:36:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 12:36:00,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:00,773 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] [2020-09-21 12:36:00,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:36:00,773 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:00,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1385845809, now seen corresponding path program 1 times [2020-09-21 12:36:00,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:00,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998952229] [2020-09-21 12:36:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:00,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:01,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:01,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:36:01,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:01,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-09-21 12:36:01,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:36:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 12:36:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:36:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:01,944 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2020-09-21 12:36:02,467 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2020-09-21 12:36:02,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:02,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:02,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:02,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:02,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:36:02,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:02,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998952229] [2020-09-21 12:36:02,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:02,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:36:02,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485858939] [2020-09-21 12:36:02,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:36:02,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:02,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:36:02,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:02,535 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 7 states. [2020-09-21 12:36:02,816 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-09-21 12:36:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:04,941 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2020-09-21 12:36:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:36:04,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-09-21 12:36:04,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:04,944 INFO L225 Difference]: With dead ends: 33 [2020-09-21 12:36:04,944 INFO L226 Difference]: Without dead ends: 31 [2020-09-21 12:36:04,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-21 12:36:04,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-09-21 12:36:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:36:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-09-21 12:36:04,952 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 20 [2020-09-21 12:36:04,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:04,952 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-09-21 12:36:04,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:36:04,953 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-09-21 12:36:04,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-21 12:36:04,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:04,954 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] [2020-09-21 12:36:04,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:36:04,954 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:04,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:04,955 INFO L82 PathProgramCache]: Analyzing trace with hash -624217503, now seen corresponding path program 1 times [2020-09-21 12:36:04,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:04,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240004678] [2020-09-21 12:36:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:36:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-21 12:36:05,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:36:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:36:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:05,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:05,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:36:05,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:05,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240004678] [2020-09-21 12:36:05,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:05,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:05,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661640156] [2020-09-21 12:36:05,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:05,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:05,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:05,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:05,340 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 6 states. [2020-09-21 12:36:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:05,519 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2020-09-21 12:36:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:05,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-09-21 12:36:05,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:05,521 INFO L225 Difference]: With dead ends: 67 [2020-09-21 12:36:05,521 INFO L226 Difference]: Without dead ends: 50 [2020-09-21 12:36:05,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-21 12:36:05,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2020-09-21 12:36:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-21 12:36:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-09-21 12:36:05,538 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 21 [2020-09-21 12:36:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:05,539 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-09-21 12:36:05,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-09-21 12:36:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-21 12:36:05,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:05,541 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] [2020-09-21 12:36:05,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:36:05,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:05,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:05,542 INFO L82 PathProgramCache]: Analyzing trace with hash -640274852, now seen corresponding path program 1 times [2020-09-21 12:36:05,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:05,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782742895] [2020-09-21 12:36:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:05,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:05,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:36:05,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:05,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-21 12:36:05,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:36:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-21 12:36:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:36:05,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:05,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:05,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:05,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:05,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:05,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:36:05,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:05,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782742895] [2020-09-21 12:36:05,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:05,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:36:05,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613287803] [2020-09-21 12:36:05,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:05,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:05,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:05,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:05,751 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2020-09-21 12:36:05,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:05,888 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-21 12:36:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:05,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-21 12:36:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:05,889 INFO L225 Difference]: With dead ends: 53 [2020-09-21 12:36:05,891 INFO L226 Difference]: Without dead ends: 51 [2020-09-21 12:36:05,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-21 12:36:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 36. [2020-09-21 12:36:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-21 12:36:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-09-21 12:36:05,908 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 21 [2020-09-21 12:36:05,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:05,908 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-09-21 12:36:05,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-09-21 12:36:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-21 12:36:05,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:05,910 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:05,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:36:05,911 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:05,911 INFO L82 PathProgramCache]: Analyzing trace with hash 358048683, now seen corresponding path program 1 times [2020-09-21 12:36:05,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:05,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595520408] [2020-09-21 12:36:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:05,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:06,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 12:36:06,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:06,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-09-21 12:36:06,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 12:36:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:36:06,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:06,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:06,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:06,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:06,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:36:06,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:06,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595520408] [2020-09-21 12:36:06,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:36:06,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:36:06,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003001048] [2020-09-21 12:36:06,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:36:06,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:06,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:36:06,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:36:06,772 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2020-09-21 12:36:07,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:07,057 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-09-21 12:36:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:07,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-21 12:36:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:07,059 INFO L225 Difference]: With dead ends: 37 [2020-09-21 12:36:07,059 INFO L226 Difference]: Without dead ends: 29 [2020-09-21 12:36:07,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-21 12:36:07,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-21 12:36:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-21 12:36:07,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-09-21 12:36:07,067 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2020-09-21 12:36:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:07,068 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-09-21 12:36:07,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:36:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-09-21 12:36:07,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-21 12:36:07,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:07,070 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] [2020-09-21 12:36:07,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:36:07,071 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:07,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:07,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1635846330, now seen corresponding path program 1 times [2020-09-21 12:36:07,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:07,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602091182] [2020-09-21 12:36:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:36:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:36:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:07,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:07,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:07,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:36:07,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:07,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:36:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:07,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602091182] [2020-09-21 12:36:07,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:36:07,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:36:07,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625137115] [2020-09-21 12:36:07,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:07,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:07,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:07,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:07,535 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 6 states. [2020-09-21 12:36:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:07,658 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2020-09-21 12:36:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:36:07,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-09-21 12:36:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:07,660 INFO L225 Difference]: With dead ends: 41 [2020-09-21 12:36:07,661 INFO L226 Difference]: Without dead ends: 29 [2020-09-21 12:36:07,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:36:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-21 12:36:07,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-21 12:36:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-21 12:36:07,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-09-21 12:36:07,669 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 22 [2020-09-21 12:36:07,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:07,669 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-09-21 12:36:07,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:07,670 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-09-21 12:36:07,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 12:36:07,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:36:07,671 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:36:07,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:36:07,672 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:36:07,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:36:07,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1963595379, now seen corresponding path program 1 times [2020-09-21 12:36:07,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:36:07,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970964749] [2020-09-21 12:36:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:36:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:07,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:07,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:08,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 12:36:08,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:36:08,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:36:08,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:36:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:36:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:36:08,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:08,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:36:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:36:08,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:36:08,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:36:08,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:36:08,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:36:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:36:08,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:36:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:36:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:36:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:36:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:36:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:36:08,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970964749] [2020-09-21 12:36:08,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:36:08,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:36:08,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301959187] [2020-09-21 12:36:08,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:36:08,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:36:08,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:36:08,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:36:08,824 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-09-21 12:36:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:36:08,919 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2020-09-21 12:36:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:36:08,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-09-21 12:36:08,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:36:08,920 INFO L225 Difference]: With dead ends: 36 [2020-09-21 12:36:08,920 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:36:08,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:36:08,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:36:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:36:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:36:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:36:08,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-09-21 12:36:08,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:36:08,922 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:36:08,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:36:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:36:08,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:36:08,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:36:08,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:36:26,125 WARN L193 SmtUtils]: Spent 17.01 s on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-09-21 12:36:38,953 WARN L193 SmtUtils]: Spent 12.82 s on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-09-21 12:36:47,246 WARN L193 SmtUtils]: Spent 8.28 s on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-09-21 12:36:47,278 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:36:47,278 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_136~0 |old(~__return_136~0)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:36:47,278 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:36:47,278 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:36:47,279 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:36:47,279 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:36:47,279 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:36:47,279 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-21 12:36:47,279 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-21 12:36:47,279 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-09-21 12:36:47,279 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-21 12:36:47,279 INFO L268 CegarLoopResult]: For program point L60(lines 60 86) no Hoare annotation was computed. [2020-09-21 12:36:47,280 INFO L268 CegarLoopResult]: For program point L27(lines 27 150) no Hoare annotation was computed. [2020-09-21 12:36:47,280 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 166) no Hoare annotation was computed. [2020-09-21 12:36:47,280 INFO L264 CegarLoopResult]: At program point L85(lines 60 86) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= 1 main_~main____CPAchecker_TMP_0~1) (<= main_~main__index2~0 (+ .cse0 99998)) (<= (+ (* 4294967296 (div (+ (* (div (+ (* main_~main__index2~0 (- 1)) 4294967294) 4294967296) (- 4294967296)) (* main_~main__index1~0 (- 1)) 4294967296) 4294967296)) main_~main__index1~0) (+ main_~main__index2~0 1)) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-21 12:36:47,280 INFO L268 CegarLoopResult]: For program point L19(lines 19 165) no Hoare annotation was computed. [2020-09-21 12:36:47,280 INFO L268 CegarLoopResult]: For program point L48(lines 48 136) no Hoare annotation was computed. [2020-09-21 12:36:47,280 INFO L264 CegarLoopResult]: At program point L77(lines 44 137) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-21 12:36:47,281 INFO L268 CegarLoopResult]: For program point L106(lines 106 118) no Hoare annotation was computed. [2020-09-21 12:36:47,281 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 12:36:47,281 INFO L268 CegarLoopResult]: For program point L69(lines 69 78) no Hoare annotation was computed. [2020-09-21 12:36:47,281 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2020-09-21 12:36:47,281 INFO L264 CegarLoopResult]: At program point L90(lines 58 91) the Hoare annotation is: false [2020-09-21 12:36:47,282 INFO L268 CegarLoopResult]: For program point L24(lines 24 155) no Hoare annotation was computed. [2020-09-21 12:36:47,282 INFO L264 CegarLoopResult]: At program point L144(lines 29 145) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (= main_~main__loop_entered~0 0) (= main_~main____CPAchecker_TMP_0~0 1) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-21 12:36:47,282 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-09-21 12:36:47,282 INFO L268 CegarLoopResult]: For program point L29(lines 29 145) no Hoare annotation was computed. [2020-09-21 12:36:47,282 INFO L268 CegarLoopResult]: For program point L58(lines 58 91) no Hoare annotation was computed. [2020-09-21 12:36:47,283 INFO L264 CegarLoopResult]: At program point L149(lines 27 150) the Hoare annotation is: false [2020-09-21 12:36:47,283 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 166) no Hoare annotation was computed. [2020-09-21 12:36:47,283 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-21 12:36:47,283 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-21 12:36:47,283 INFO L268 CegarLoopResult]: For program point L38(lines 38 137) no Hoare annotation was computed. [2020-09-21 12:36:47,283 INFO L271 CegarLoopResult]: At program point L129(lines 96 130) the Hoare annotation is: true [2020-09-21 12:36:47,284 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2020-09-21 12:36:47,284 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 166) the Hoare annotation is: (and (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:36:47,284 INFO L264 CegarLoopResult]: At program point L154(lines 24 155) the Hoare annotation is: (or (and (let ((.cse24 (div main_~main__index1~0 4294967296)) (.cse25 (div main_~main__index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse25)) (.cse1 (* 4294967296 .cse24))) (or (<= (+ main_~main__index1~0 .cse0) (+ main_~main__index2~0 .cse1)) (let ((.cse20 (* main_~main__index2~0 4)) (.cse21 (* .cse25 (- 17179869184))) (.cse19 (select |#memory_int| |main_~#main__array~0.base|)) (.cse22 (* main_~main__index1~0 4)) (.cse23 (* .cse24 (- 17179869184)))) (let ((.cse16 (select .cse19 (+ .cse22 |main_~#main__array~0.offset| .cse23 (- 17179869184)))) (.cse7 (select .cse19 (+ .cse20 |main_~#main__array~0.offset| .cse21)))) (let ((.cse14 (select .cse19 (+ .cse22 |main_~#main__array~0.offset| .cse23))) (.cse13 (+ .cse1 2147483647)) (.cse15 (* 4294967296 (div .cse7 4294967296))) (.cse17 (+ .cse0 2147483647)) (.cse18 (select .cse19 (+ .cse20 |main_~#main__array~0.offset| .cse21 (- 17179869184)))) (.cse8 (* 4294967296 (div .cse16 4294967296)))) (let ((.cse3 (+ .cse18 .cse8)) (.cse2 (+ (* 4294967296 (div .cse18 4294967296)) .cse16)) (.cse4 (< .cse17 main_~main__index2~0)) (.cse5 (<= main_~main__index2~0 .cse17)) (.cse6 (+ .cse16 .cse15)) (.cse12 (< .cse13 main_~main__index1~0)) (.cse11 (* 4294967296 (div .cse14 4294967296))) (.cse10 (+ .cse14 .cse15)) (.cse9 (<= main_~main__index1~0 .cse13))) (and (or (and (<= .cse2 .cse3) .cse4) (and (or (and .cse5 (< .cse6 (+ .cse7 .cse8 1))) .cse9) (or (< .cse10 (+ .cse11 .cse7 1)) .cse12))) (or (and (or (and (<= .cse3 .cse2) .cse4) (and .cse5 (<= (+ .cse7 .cse8) .cse6))) .cse12) (and (<= (+ .cse11 .cse7) .cse10) .cse9)))))))))) (<= (+ (* 4294967296 (div (+ (* (div (+ (* main_~main__index2~0 (- 1)) 4294967294) 4294967296) (- 4294967296)) (* main_~main__index1~0 (- 1)) 4294967296) 4294967296)) main_~main__index1~0) (+ main_~main__index2~0 1))) (= main_~main__loop_entered~0 0)) [2020-09-21 12:36:47,284 INFO L268 CegarLoopResult]: For program point L55(lines 55 131) no Hoare annotation was computed. [2020-09-21 12:36:47,285 INFO L268 CegarLoopResult]: For program point L22(lines 22 160) no Hoare annotation was computed. [2020-09-21 12:36:47,285 INFO L264 CegarLoopResult]: At program point L117(lines 97 126) the Hoare annotation is: (let ((.cse24 (div main_~main__index1~0 4294967296)) (.cse25 (div main_~main__index2~0 4294967296))) (let ((.cse20 (* 4294967296 .cse25)) (.cse21 (* 4294967296 .cse24))) (or (let ((.cse18 (* main_~main__index2~0 4)) (.cse19 (* .cse25 (- 17179869184))) (.cse17 (select |#memory_int| |main_~#main__array~0.base|)) (.cse22 (* main_~main__index1~0 4)) (.cse23 (* .cse24 (- 17179869184)))) (let ((.cse14 (select .cse17 (+ .cse22 |main_~#main__array~0.offset| .cse23 (- 17179869184)))) (.cse5 (select .cse17 (+ .cse18 |main_~#main__array~0.offset| .cse19)))) (let ((.cse12 (select .cse17 (+ .cse22 |main_~#main__array~0.offset| .cse23))) (.cse11 (+ .cse21 2147483647)) (.cse13 (* 4294967296 (div .cse5 4294967296))) (.cse15 (+ .cse20 2147483647)) (.cse16 (select .cse17 (+ .cse18 |main_~#main__array~0.offset| .cse19 (- 17179869184)))) (.cse6 (* 4294967296 (div .cse14 4294967296)))) (let ((.cse1 (+ .cse16 .cse6)) (.cse0 (+ (* 4294967296 (div .cse16 4294967296)) .cse14)) (.cse2 (< .cse15 main_~main__index2~0)) (.cse3 (<= main_~main__index2~0 .cse15)) (.cse4 (+ .cse14 .cse13)) (.cse10 (< .cse11 main_~main__index1~0)) (.cse9 (* 4294967296 (div .cse12 4294967296))) (.cse8 (+ .cse12 .cse13)) (.cse7 (<= main_~main__index1~0 .cse11))) (and (or (and (<= .cse0 .cse1) .cse2) (and (or (and .cse3 (< .cse4 (+ .cse5 .cse6 1))) .cse7) (or (< .cse8 (+ .cse9 .cse5 1)) .cse10))) (or (and (or (and (<= .cse1 .cse0) .cse2) (and .cse3 (<= (+ .cse5 .cse6) .cse4))) .cse10) (and (<= (+ .cse9 .cse5) .cse8) .cse7)) (<= (+ (* 4294967296 (div (+ (* (div (+ (* main_~main__index2~0 (- 1)) 4294967294) 4294967296) (- 4294967296)) (* main_~main__index1~0 (- 1)) 4294967296) 4294967296)) main_~main__index1~0) (+ main_~main__index2~0 1))))))) (<= (+ main_~main__index1~0 .cse20 1) (+ main_~main__index2~0 .cse21))))) [2020-09-21 12:36:47,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,340 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:36:47 BoogieIcfgContainer [2020-09-21 12:36:47,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:36:47,352 INFO L168 Benchmark]: Toolchain (without parser) took 49724.33 ms. Allocated memory was 137.9 MB in the beginning and 314.6 MB in the end (delta: 176.7 MB). Free memory was 101.0 MB in the beginning and 204.1 MB in the end (delta: -103.1 MB). Peak memory consumption was 165.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:47,353 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:36:47,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.10 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 179.8 MB in the end (delta: -79.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:47,355 INFO L168 Benchmark]: Boogie Preprocessor took 52.53 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 178.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:47,355 INFO L168 Benchmark]: RCFGBuilder took 451.17 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 158.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:47,356 INFO L168 Benchmark]: TraceAbstraction took 48759.46 ms. Allocated memory was 201.3 MB in the beginning and 314.6 MB in the end (delta: 113.2 MB). Free memory was 157.4 MB in the beginning and 204.1 MB in the end (delta: -46.6 MB). Peak memory consumption was 158.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:36:47,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 451.10 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 179.8 MB in the end (delta: -79.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.53 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 178.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.17 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 158.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48759.46 ms. Allocated memory was 201.3 MB in the beginning and 314.6 MB in the end (delta: 113.2 MB). Free memory was 157.4 MB in the beginning and 204.1 MB in the end (delta: -46.6 MB). Peak memory consumption was 158.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 24]: Loop Invariant [2020-09-21 12:36:47,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296) || (((4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) && 4294967296 * (main__index2 / 4294967296) + 2147483647 < main__index2) || (((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) + 1) || main__index1 <= 4294967296 * (main__index1 / 4294967296) + 2147483647) && (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 1 || 4294967296 * (main__index1 / 4294967296) + 2147483647 < main__index1))) && ((((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) <= 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] && 4294967296 * (main__index2 / 4294967296) + 2147483647 < main__index2) || (main__index2 <= 4294967296 * (main__index2 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296))) && 4294967296 * (main__index1 / 4294967296) + 2147483647 < main__index1) || (4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && main__index1 <= 4294967296 * (main__index1 / 4294967296) + 2147483647)))) && 4294967296 * (((main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 * -1 + 4294967296) / 4294967296) + main__index1 <= main__index2 + 1) || main__loop_entered == 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 97]: Loop Invariant [2020-09-21 12:36:47,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 12:36:47,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) && 4294967296 * (main__index2 / 4294967296) + 2147483647 < main__index2) || (((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) + 1) || main__index1 <= 4294967296 * (main__index1 / 4294967296) + 2147483647) && (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 1 || 4294967296 * (main__index1 / 4294967296) + 2147483647 < main__index1))) && ((((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) <= 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] && 4294967296 * (main__index2 / 4294967296) + 2147483647 < main__index2) || (main__index2 <= 4294967296 * (main__index2 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296))) && 4294967296 * (main__index1 / 4294967296) + 2147483647 < main__index1) || (4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && main__index1 <= 4294967296 * (main__index1 / 4294967296) + 2147483647))) && 4294967296 * (((main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 * -1 + 4294967296) / 4294967296) + main__index1 <= main__index2 + 1) || main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: ((1 <= main____CPAchecker_TMP_0 && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && 4294967296 * (((main__index2 * -1 + 4294967294) / 4294967296 * -4294967296 + main__index1 * -1 + 4294967296) / 4294967296) + main__index1 <= main__index2 + 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__loop_entered == 0) && main____CPAchecker_TMP_0 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.2s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 38.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 257 SDtfs, 209 SDslu, 292 SDs, 0 SdLazy, 547 SolverSat, 25 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 63 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 1230 HoareAnnotationTreeSize, 12 FomulaSimplifications, 426 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 3255 FormulaSimplificationTreeSizeReductionInter, 38.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 51420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/8 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...