/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:26:00,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:26:00,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:26:00,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:26:00,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:26:00,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:26:00,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:26:00,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:26:00,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:26:00,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:26:00,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:26:00,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:26:00,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:26:00,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:26:00,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:26:00,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:26:00,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:26:00,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:26:00,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:26:00,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:26:00,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:26:00,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:26:00,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:26:00,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:26:00,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:26:00,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:26:00,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:26:00,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:26:00,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:26:00,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:26:00,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:26:00,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:26:00,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:26:00,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:26:00,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:26:00,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:26:00,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:26:00,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:26:00,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:26:00,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:26:00,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:26:00,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:26:01,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:26:01,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:26:01,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:26:01,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:26:01,051 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:26:01,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:26:01,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:26:01,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:26:01,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:26:01,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:26:01,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:26:01,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:26:01,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:26:01,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:26:01,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:26:01,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:26:01,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:26:01,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:26:01,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:26:01,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:26:01,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:26:01,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:26:01,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:26:01,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:26:01,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:26:01,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:26:01,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:26:01,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:26:01,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:26:01,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:26:01,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:26:01,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:26:01,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:26:01,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:26:01,543 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:26:01,544 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 13:26:01,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d279531e7/d630c5fac2b44baf930b89443fbfac2e/FLAG2b46934f0 [2020-09-25 13:26:02,159 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:26:02,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 13:26:02,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d279531e7/d630c5fac2b44baf930b89443fbfac2e/FLAG2b46934f0 [2020-09-25 13:26:02,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d279531e7/d630c5fac2b44baf930b89443fbfac2e [2020-09-25 13:26:02,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:26:02,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:26:02,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:02,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:26:02,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:26:02,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:02,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea52f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02, skipping insertion in model container [2020-09-25 13:26:02,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:02,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:26:02,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:26:02,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:02,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:26:02,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:02,899 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:26:02,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02 WrapperNode [2020-09-25 13:26:02,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:02,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:26:02,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:26:02,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:26:02,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:02,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:03,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:03,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:03,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:03,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:03,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... [2020-09-25 13:26:03,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:26:03,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:26:03,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:26:03,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:26:03,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:26:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:26:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:26:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:26:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:26:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 13:26:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:26:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 13:26:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:26:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:26:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:26:03,517 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:26:03,517 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:26:03,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:03 BoogieIcfgContainer [2020-09-25 13:26:03,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:26:03,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:26:03,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:26:03,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:26:03,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:26:02" (1/3) ... [2020-09-25 13:26:03,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73453d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:03, skipping insertion in model container [2020-09-25 13:26:03,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:02" (2/3) ... [2020-09-25 13:26:03,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73453d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:03, skipping insertion in model container [2020-09-25 13:26:03,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:03" (3/3) ... [2020-09-25 13:26:03,532 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-09-25 13:26:03,544 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:26:03,554 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:26:03,575 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:26:03,605 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:26:03,605 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:26:03,605 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:26:03,606 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:26:03,606 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:26:03,606 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:26:03,606 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:26:03,606 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:26:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-09-25 13:26:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 13:26:03,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:03,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:03,636 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:03,643 INFO L82 PathProgramCache]: Analyzing trace with hash 766781838, now seen corresponding path program 1 times [2020-09-25 13:26:03,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:03,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69187623] [2020-09-25 13:26:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:03,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 13:26:03,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 13:26:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:03,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 13:26:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:26:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:26:03,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:03,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:03,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:03,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:03,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:26:03,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:03,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:03,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:03,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69187623] [2020-09-25 13:26:03,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:03,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:03,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935451664] [2020-09-25 13:26:03,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:03,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:03,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:03,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:03,974 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-09-25 13:26:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:04,141 INFO L93 Difference]: Finished difference Result 198 states and 286 transitions. [2020-09-25 13:26:04,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:04,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-09-25 13:26:04,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:04,161 INFO L225 Difference]: With dead ends: 198 [2020-09-25 13:26:04,161 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 13:26:04,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 13:26:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-25 13:26:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 13:26:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2020-09-25 13:26:04,233 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 26 [2020-09-25 13:26:04,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:04,234 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2020-09-25 13:26:04,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2020-09-25 13:26:04,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 13:26:04,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:04,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:04,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:26:04,237 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:04,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:04,237 INFO L82 PathProgramCache]: Analyzing trace with hash -184994456, now seen corresponding path program 1 times [2020-09-25 13:26:04,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:04,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8814515] [2020-09-25 13:26:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:26:04,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 13:26:04,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 13:26:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:26:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:04,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:04,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8814515] [2020-09-25 13:26:04,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:04,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:04,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831918137] [2020-09-25 13:26:04,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:04,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:04,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:04,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:04,377 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand 3 states. [2020-09-25 13:26:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:04,469 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2020-09-25 13:26:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:04,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-09-25 13:26:04,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:04,472 INFO L225 Difference]: With dead ends: 233 [2020-09-25 13:26:04,473 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 13:26:04,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:04,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 13:26:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-09-25 13:26:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 13:26:04,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2020-09-25 13:26:04,497 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 32 [2020-09-25 13:26:04,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:04,498 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2020-09-25 13:26:04,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2020-09-25 13:26:04,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 13:26:04,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:04,501 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:04,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:26:04,502 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:04,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1532764802, now seen corresponding path program 1 times [2020-09-25 13:26:04,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:04,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815312921] [2020-09-25 13:26:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 13:26:04,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 13:26:04,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 13:26:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:26:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:26:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:04,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:04,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:04,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 13:26:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:26:04,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815312921] [2020-09-25 13:26:04,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:04,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:04,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691280167] [2020-09-25 13:26:04,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:04,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:04,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:04,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:04,688 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand 3 states. [2020-09-25 13:26:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:04,816 INFO L93 Difference]: Finished difference Result 375 states and 534 transitions. [2020-09-25 13:26:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:04,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-25 13:26:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:04,819 INFO L225 Difference]: With dead ends: 375 [2020-09-25 13:26:04,819 INFO L226 Difference]: Without dead ends: 221 [2020-09-25 13:26:04,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:04,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-25 13:26:04,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2020-09-25 13:26:04,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-25 13:26:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 276 transitions. [2020-09-25 13:26:04,842 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 276 transitions. Word has length 40 [2020-09-25 13:26:04,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:04,843 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 276 transitions. [2020-09-25 13:26:04,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:04,843 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 276 transitions. [2020-09-25 13:26:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 13:26:04,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:04,845 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:04,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:26:04,846 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:04,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1529904866, now seen corresponding path program 1 times [2020-09-25 13:26:04,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:04,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689712008] [2020-09-25 13:26:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 13:26:04,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 13:26:04,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 13:26:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:26:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:04,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:26:04,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:26:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:26:05,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689712008] [2020-09-25 13:26:05,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:05,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:05,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233384236] [2020-09-25 13:26:05,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:05,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:05,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:05,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,007 INFO L87 Difference]: Start difference. First operand 213 states and 276 transitions. Second operand 3 states. [2020-09-25 13:26:05,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:05,076 INFO L93 Difference]: Finished difference Result 403 states and 535 transitions. [2020-09-25 13:26:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:05,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-25 13:26:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:05,079 INFO L225 Difference]: With dead ends: 403 [2020-09-25 13:26:05,079 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 13:26:05,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 13:26:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-25 13:26:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 13:26:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 358 transitions. [2020-09-25 13:26:05,104 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 358 transitions. Word has length 40 [2020-09-25 13:26:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:05,105 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 358 transitions. [2020-09-25 13:26:05,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 358 transitions. [2020-09-25 13:26:05,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 13:26:05,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:05,109 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:05,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:26:05,110 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:05,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:05,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1348776400, now seen corresponding path program 1 times [2020-09-25 13:26:05,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:05,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271515548] [2020-09-25 13:26:05,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:05,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 13:26:05,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 13:26:05,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:05,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:05,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 13:26:05,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:26:05,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:05,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:05,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:05,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:05,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:05,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:05,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 13:26:05,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271515548] [2020-09-25 13:26:05,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:05,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:05,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805828138] [2020-09-25 13:26:05,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:05,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:05,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:05,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,306 INFO L87 Difference]: Start difference. First operand 274 states and 358 transitions. Second operand 3 states. [2020-09-25 13:26:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:05,398 INFO L93 Difference]: Finished difference Result 527 states and 700 transitions. [2020-09-25 13:26:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:05,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 13:26:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:05,403 INFO L225 Difference]: With dead ends: 527 [2020-09-25 13:26:05,403 INFO L226 Difference]: Without dead ends: 337 [2020-09-25 13:26:05,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-25 13:26:05,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-09-25 13:26:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 13:26:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 442 transitions. [2020-09-25 13:26:05,446 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 442 transitions. Word has length 70 [2020-09-25 13:26:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:05,447 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 442 transitions. [2020-09-25 13:26:05,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:05,447 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 442 transitions. [2020-09-25 13:26:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 13:26:05,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:05,456 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:05,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:26:05,456 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:05,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:05,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1264034378, now seen corresponding path program 1 times [2020-09-25 13:26:05,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:05,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911815902] [2020-09-25 13:26:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 13:26:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:26:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:26:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:05,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:05,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:05,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:05,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:05,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 13:26:05,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911815902] [2020-09-25 13:26:05,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:05,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:05,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401847329] [2020-09-25 13:26:05,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:05,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:05,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:05,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,573 INFO L87 Difference]: Start difference. First operand 335 states and 442 transitions. Second operand 3 states. [2020-09-25 13:26:05,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:05,692 INFO L93 Difference]: Finished difference Result 637 states and 866 transitions. [2020-09-25 13:26:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:05,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 13:26:05,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:05,695 INFO L225 Difference]: With dead ends: 637 [2020-09-25 13:26:05,695 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 13:26:05,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 13:26:05,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2020-09-25 13:26:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 13:26:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 299 transitions. [2020-09-25 13:26:05,719 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 299 transitions. Word has length 74 [2020-09-25 13:26:05,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:05,720 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 299 transitions. [2020-09-25 13:26:05,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 299 transitions. [2020-09-25 13:26:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 13:26:05,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:05,722 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:05,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:26:05,723 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:05,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1725408203, now seen corresponding path program 1 times [2020-09-25 13:26:05,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:05,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260488690] [2020-09-25 13:26:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:06,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 13:26:06,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:26:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 13:26:06,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:06,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 13:26:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:26:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:06,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:06,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:06,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:06,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:06,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 13:26:06,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260488690] [2020-09-25 13:26:06,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:06,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:06,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755557112] [2020-09-25 13:26:06,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:06,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:06,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:06,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:06,228 INFO L87 Difference]: Start difference. First operand 240 states and 299 transitions. Second operand 3 states. [2020-09-25 13:26:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:06,243 INFO L93 Difference]: Finished difference Result 365 states and 436 transitions. [2020-09-25 13:26:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:06,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-09-25 13:26:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:06,244 INFO L225 Difference]: With dead ends: 365 [2020-09-25 13:26:06,244 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:26:06,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:26:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:26:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:26:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:26:06,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-09-25 13:26:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:06,248 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:26:06,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:06,248 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:26:06,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:26:06,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:26:06,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:26:06,507 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 13:26:06,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:26:06,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:26:06,508 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:26:06,508 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:26:06,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:26:06,508 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 217) no Hoare annotation was computed. [2020-09-25 13:26:06,508 INFO L268 CegarLoopResult]: For program point L151-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 13:26:06,509 INFO L268 CegarLoopResult]: For program point L52(lines 52 193) no Hoare annotation was computed. [2020-09-25 13:26:06,509 INFO L268 CegarLoopResult]: For program point L85-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 13:26:06,509 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 13:26:06,509 INFO L268 CegarLoopResult]: For program point L135(lines 135 139) no Hoare annotation was computed. [2020-09-25 13:26:06,509 INFO L264 CegarLoopResult]: At program point L69(lines 68 185) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8656 main_~s__state~0)) [2020-09-25 13:26:06,509 INFO L268 CegarLoopResult]: For program point L36(lines 36 201) no Hoare annotation was computed. [2020-09-25 13:26:06,510 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-25 13:26:06,510 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 13:26:06,510 INFO L264 CegarLoopResult]: At program point L53(lines 52 193) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,510 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 13:26:06,510 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-25 13:26:06,510 INFO L268 CegarLoopResult]: For program point L169-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 13:26:06,511 INFO L264 CegarLoopResult]: At program point L37(lines 36 201) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,511 INFO L264 CegarLoopResult]: At program point L120(lines 113 122) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,511 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 217) no Hoare annotation was computed. [2020-09-25 13:26:06,511 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 13:26:06,511 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 13:26:06,511 INFO L268 CegarLoopResult]: For program point L105(lines 105 123) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L268 CegarLoopResult]: For program point L72(lines 72 183) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L268 CegarLoopResult]: For program point L56(lines 56 191) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L268 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L268 CegarLoopResult]: For program point L106(lines 106 110) no Hoare annotation was computed. [2020-09-25 13:26:06,512 INFO L264 CegarLoopResult]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8656 main_~s__state~0)) [2020-09-25 13:26:06,513 INFO L268 CegarLoopResult]: For program point L40(lines 40 199) no Hoare annotation was computed. [2020-09-25 13:26:06,513 INFO L264 CegarLoopResult]: At program point L57(lines 56 191) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,513 INFO L264 CegarLoopResult]: At program point L173(lines 8 217) the Hoare annotation is: false [2020-09-25 13:26:06,513 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 13:26:06,513 INFO L264 CegarLoopResult]: At program point L41(lines 40 199) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,513 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-25 13:26:06,514 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 13:26:06,514 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-25 13:26:06,514 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 13:26:06,514 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 13:26:06,514 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 13:26:06,514 INFO L268 CegarLoopResult]: For program point L60(lines 60 189) no Hoare annotation was computed. [2020-09-25 13:26:06,515 INFO L264 CegarLoopResult]: At program point L176(lines 22 211) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and .cse0 (<= 8656 main_~s__state~0)) (and (<= 8640 main_~s__state~0) .cse0 (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2))) [2020-09-25 13:26:06,515 INFO L268 CegarLoopResult]: For program point L44(lines 44 197) no Hoare annotation was computed. [2020-09-25 13:26:06,515 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 13:26:06,515 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 13:26:06,515 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 13:26:06,515 INFO L264 CegarLoopResult]: At program point L61(lines 60 189) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,516 INFO L268 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-09-25 13:26:06,516 INFO L264 CegarLoopResult]: At program point L45(lines 44 197) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,516 INFO L268 CegarLoopResult]: For program point L78-1(lines 78 80) no Hoare annotation was computed. [2020-09-25 13:26:06,516 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 13:26:06,516 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 13:26:06,516 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 13:26:06,516 INFO L268 CegarLoopResult]: For program point L29(lines 29 204) no Hoare annotation was computed. [2020-09-25 13:26:06,517 INFO L264 CegarLoopResult]: At program point L112(lines 105 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,517 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-25 13:26:06,517 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 13:26:06,517 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 13:26:06,517 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 13:26:06,517 INFO L268 CegarLoopResult]: For program point L162-1(lines 162 164) no Hoare annotation was computed. [2020-09-25 13:26:06,518 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-25 13:26:06,518 INFO L264 CegarLoopResult]: At program point L30(lines 29 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,518 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 217) the Hoare annotation is: true [2020-09-25 13:26:06,518 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 13:26:06,518 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-25 13:26:06,519 INFO L268 CegarLoopResult]: For program point L64(lines 64 187) no Hoare annotation was computed. [2020-09-25 13:26:06,519 INFO L271 CegarLoopResult]: At program point L213(lines 8 217) the Hoare annotation is: true [2020-09-25 13:26:06,519 INFO L268 CegarLoopResult]: For program point L114(lines 114 118) no Hoare annotation was computed. [2020-09-25 13:26:06,519 INFO L268 CegarLoopResult]: For program point L48(lines 48 195) no Hoare annotation was computed. [2020-09-25 13:26:06,519 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 13:26:06,519 INFO L264 CegarLoopResult]: At program point L65(lines 64 187) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-25 13:26:06,520 INFO L268 CegarLoopResult]: For program point L32(lines 32 203) no Hoare annotation was computed. [2020-09-25 13:26:06,520 INFO L264 CegarLoopResult]: At program point L49(lines 48 195) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,520 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 13:26:06,520 INFO L264 CegarLoopResult]: At program point L33(lines 32 203) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 13:26:06,520 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 13:26:06,520 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 13:26:06,520 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 13:26:06,521 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 13:26:06,521 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 13:26:06,521 INFO L268 CegarLoopResult]: For program point L68(lines 68 185) no Hoare annotation was computed. [2020-09-25 13:26:06,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:26:06 BoogieIcfgContainer [2020-09-25 13:26:06,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:26:06,552 INFO L168 Benchmark]: Toolchain (without parser) took 4060.23 ms. Allocated memory was 140.5 MB in the beginning and 243.8 MB in the end (delta: 103.3 MB). Free memory was 103.6 MB in the beginning and 111.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:06,553 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:26:06,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.62 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 91.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:06,555 INFO L168 Benchmark]: Boogie Preprocessor took 129.91 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 182.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:06,555 INFO L168 Benchmark]: RCFGBuilder took 491.74 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 159.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:06,557 INFO L168 Benchmark]: TraceAbstraction took 3024.31 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 159.5 MB in the beginning and 111.4 MB in the end (delta: 48.1 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:06,561 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 403.62 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 91.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.91 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 182.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.74 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 159.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3024.31 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 159.5 MB in the beginning and 111.4 MB in the end (delta: 48.1 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8656 <= s__state - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((blastFlag <= 3 && 8656 <= s__state) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0))) || blastFlag <= 2 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8656 <= s__state - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 696 SDtfs, 313 SDslu, 519 SDs, 0 SdLazy, 210 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 87 NumberOfFragments, 94 HoareAnnotationTreeSize, 21 FomulaSimplifications, 622 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 379 ConstructedInterpolants, 0 QuantifiedInterpolants, 44169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 193/193 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...