/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=0.2 --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_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:10:39,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:10:39,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:10:39,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:10:39,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:10:39,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:10:39,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:10:39,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:10:39,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:10:39,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:10:39,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:10:39,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:10:39,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:10:39,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:10:39,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:10:39,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:10:39,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:10:39,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:10:39,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:10:39,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:10:39,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:10:39,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:10:39,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:10:39,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:10:39,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:10:39,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:10:39,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:10:39,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:10:39,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:10:39,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:10:39,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:10:39,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:10:39,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:10:39,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:10:39,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:10:39,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:10:39,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:10:39,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:10:39,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:10:40,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:10:40,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:10:40,002 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 11:10:40,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:10:40,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:10:40,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:10:40,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:10:40,052 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:10:40,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:10:40,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:10:40,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:10:40,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:10:40,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:10:40,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:10:40,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:10:40,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:10:40,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:10:40,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:10:40,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:10:40,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:10:40,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:10:40,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:10:40,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:10:40,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:10:40,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:10:40,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:10:40,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:10:40,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:10:40,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:10:40,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:10:40,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:10:40,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:10:40,059 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 11:10:40,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:10:40,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:10:40,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:10:40,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:10:40,527 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:10:40,528 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-25 11:10:40,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c0e31d38/4c27dcb943f74b1988282f64d2d323f2/FLAG7371abf83 [2020-09-25 11:10:41,081 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:10:41,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-25 11:10:41,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c0e31d38/4c27dcb943f74b1988282f64d2d323f2/FLAG7371abf83 [2020-09-25 11:10:41,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c0e31d38/4c27dcb943f74b1988282f64d2d323f2 [2020-09-25 11:10:41,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:10:41,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:10:41,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:10:41,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:10:41,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:10:41,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1265c732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41, skipping insertion in model container [2020-09-25 11:10:41,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:10:41,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:10:41,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:10:41,793 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:10:41,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:10:41,831 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:10:41,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41 WrapperNode [2020-09-25 11:10:41,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:10:41,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:10:41,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:10:41,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:10:41,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (1/1) ... [2020-09-25 11:10:41,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:10:41,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:10:41,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:10:41,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:10:41,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (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 11:10:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:10:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:10:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:10:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:10:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 11:10:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:10:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 11:10:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:10:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:10:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:10:42,322 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:10:42,323 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:10:42,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:10:42 BoogieIcfgContainer [2020-09-25 11:10:42,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:10:42,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:10:42,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:10:42,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:10:42,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:10:41" (1/3) ... [2020-09-25 11:10:42,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a306452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:10:42, skipping insertion in model container [2020-09-25 11:10:42,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:41" (2/3) ... [2020-09-25 11:10:42,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a306452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:10:42, skipping insertion in model container [2020-09-25 11:10:42,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:10:42" (3/3) ... [2020-09-25 11:10:42,341 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2020-09-25 11:10:42,355 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:10:42,365 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:10:42,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:10:42,420 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:10:42,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:10:42,421 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:10:42,421 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:10:42,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:10:42,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:10:42,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:10:42,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:10:42,447 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-09-25 11:10:42,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-25 11:10:42,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:42,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:42,455 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:42,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:42,461 INFO L82 PathProgramCache]: Analyzing trace with hash -936940309, now seen corresponding path program 1 times [2020-09-25 11:10:42,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:42,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404785680] [2020-09-25 11:10:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:42,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:42,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:42,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:10:42,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:42,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 11:10:42,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:42,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 11:10:42,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:10:42,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:10:42,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:42,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:42,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:42,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:10:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:42,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:42,734 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 11:10:42,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404785680] [2020-09-25 11:10:42,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:42,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:42,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399135484] [2020-09-25 11:10:42,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:42,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:42,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:42,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:42,763 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2020-09-25 11:10:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:42,885 INFO L93 Difference]: Finished difference Result 110 states and 156 transitions. [2020-09-25 11:10:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:42,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-09-25 11:10:42,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:42,905 INFO L225 Difference]: With dead ends: 110 [2020-09-25 11:10:42,905 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 11:10:42,910 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 11:10:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 11:10:42,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 11:10:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 11:10:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 82 transitions. [2020-09-25 11:10:42,966 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 82 transitions. Word has length 15 [2020-09-25 11:10:42,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:42,967 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 82 transitions. [2020-09-25 11:10:42,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2020-09-25 11:10:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 11:10:42,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:42,968 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] [2020-09-25 11:10:42,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:10:42,969 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:42,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1261763386, now seen corresponding path program 1 times [2020-09-25 11:10:42,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:42,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358286622] [2020-09-25 11:10:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:42,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 11:10:43,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:10:43,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 11:10:43,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 11:10:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:10:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:10:43,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:43,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:10:43,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:43,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,126 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 11:10:43,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358286622] [2020-09-25 11:10:43,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:43,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:43,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600924130] [2020-09-25 11:10:43,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:43,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:43,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:43,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:43,131 INFO L87 Difference]: Start difference. First operand 66 states and 82 transitions. Second operand 3 states. [2020-09-25 11:10:43,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:43,203 INFO L93 Difference]: Finished difference Result 120 states and 157 transitions. [2020-09-25 11:10:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:43,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-25 11:10:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:43,205 INFO L225 Difference]: With dead ends: 120 [2020-09-25 11:10:43,206 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 11:10:43,207 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 11:10:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 11:10:43,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-25 11:10:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 11:10:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 113 transitions. [2020-09-25 11:10:43,221 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 113 transitions. Word has length 22 [2020-09-25 11:10:43,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:43,222 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 113 transitions. [2020-09-25 11:10:43,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 113 transitions. [2020-09-25 11:10:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 11:10:43,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:43,224 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 11:10:43,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:10:43,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:43,225 INFO L82 PathProgramCache]: Analyzing trace with hash 122238776, now seen corresponding path program 1 times [2020-09-25 11:10:43,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:43,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068509473] [2020-09-25 11:10:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:10:43,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:43,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 11:10:43,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:43,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 11:10:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:10:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:43,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:43,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:43,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 11:10:43,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068509473] [2020-09-25 11:10:43,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:43,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:43,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909693161] [2020-09-25 11:10:43,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:43,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:43,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:43,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:43,319 INFO L87 Difference]: Start difference. First operand 90 states and 113 transitions. Second operand 3 states. [2020-09-25 11:10:43,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:43,414 INFO L93 Difference]: Finished difference Result 170 states and 220 transitions. [2020-09-25 11:10:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:43,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-25 11:10:43,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:43,417 INFO L225 Difference]: With dead ends: 170 [2020-09-25 11:10:43,417 INFO L226 Difference]: Without dead ends: 116 [2020-09-25 11:10:43,418 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 11:10:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-25 11:10:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-09-25 11:10:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 11:10:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2020-09-25 11:10:43,434 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 30 [2020-09-25 11:10:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:43,435 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2020-09-25 11:10:43,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2020-09-25 11:10:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 11:10:43,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:43,437 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] [2020-09-25 11:10:43,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:10:43,437 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:43,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1207592178, now seen corresponding path program 1 times [2020-09-25 11:10:43,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:43,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575927544] [2020-09-25 11:10:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 11:10:43,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:43,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 11:10:43,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 11:10:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:10:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:43,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:10:43,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,564 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 11:10:43,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575927544] [2020-09-25 11:10:43,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:43,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:43,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580263911] [2020-09-25 11:10:43,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:43,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:43,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:43,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:43,567 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand 3 states. [2020-09-25 11:10:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:43,624 INFO L93 Difference]: Finished difference Result 208 states and 272 transitions. [2020-09-25 11:10:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:43,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-09-25 11:10:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:43,626 INFO L225 Difference]: With dead ends: 208 [2020-09-25 11:10:43,626 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 11:10:43,628 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 11:10:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 11:10:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2020-09-25 11:10:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-25 11:10:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2020-09-25 11:10:43,639 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 34 [2020-09-25 11:10:43,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:43,639 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2020-09-25 11:10:43,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2020-09-25 11:10:43,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 11:10:43,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:43,641 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2020-09-25 11:10:43,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:10:43,642 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:43,642 INFO L82 PathProgramCache]: Analyzing trace with hash 340924863, now seen corresponding path program 1 times [2020-09-25 11:10:43,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:43,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267643812] [2020-09-25 11:10:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 11:10:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:10:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 11:10:43,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:10:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:10:43,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:43,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:43,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:43,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:43,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:43,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:43,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:43,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 11:10:43,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267643812] [2020-09-25 11:10:43,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:43,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:43,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806855344] [2020-09-25 11:10:43,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:43,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:43,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:43,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:43,917 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand 3 states. [2020-09-25 11:10:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:43,933 INFO L93 Difference]: Finished difference Result 132 states and 155 transitions. [2020-09-25 11:10:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:43,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-09-25 11:10:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:43,935 INFO L225 Difference]: With dead ends: 132 [2020-09-25 11:10:43,935 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:10:43,936 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 11:10:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:10:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:10:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:10:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:10:43,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-09-25 11:10:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:43,937 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:10:43,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:10:43,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:10:43,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:10:43,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:10:44,098 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 11:10:44,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:10:44,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:10:44,099 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 11:10:44,099 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 140) no Hoare annotation was computed. [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point L77-1(lines 53 106) no Hoare annotation was computed. [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point L69(lines 69 73) no Hoare annotation was computed. [2020-09-25 11:10:44,100 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 11:10:44,101 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-25 11:10:44,101 INFO L268 CegarLoopResult]: For program point L45(lines 45 110) no Hoare annotation was computed. [2020-09-25 11:10:44,101 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 11:10:44,101 INFO L271 CegarLoopResult]: At program point L136(lines 8 140) the Hoare annotation is: true [2020-09-25 11:10:44,101 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 11:10:44,101 INFO L268 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-09-25 11:10:44,101 INFO L268 CegarLoopResult]: For program point L29(lines 29 124) no Hoare annotation was computed. [2020-09-25 11:10:44,102 INFO L264 CegarLoopResult]: At program point L46(lines 45 110) 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 11:10:44,102 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 140) no Hoare annotation was computed. [2020-09-25 11:10:44,102 INFO L264 CegarLoopResult]: At program point L96(lines 8 140) the Hoare annotation is: false [2020-09-25 11:10:44,102 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 138) no Hoare annotation was computed. [2020-09-25 11:10:44,103 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-25 11:10:44,103 INFO L264 CegarLoopResult]: At program point L30(lines 29 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 11:10:44,103 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 140) the Hoare annotation is: true [2020-09-25 11:10:44,103 INFO L268 CegarLoopResult]: For program point L88-1(lines 53 106) no Hoare annotation was computed. [2020-09-25 11:10:44,103 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 11:10:44,104 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-25 11:10:44,104 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-25 11:10:44,104 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 11:10:44,104 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-25 11:10:44,104 INFO L268 CegarLoopResult]: For program point L24(lines 24 127) no Hoare annotation was computed. [2020-09-25 11:10:44,105 INFO L268 CegarLoopResult]: For program point L57-1(lines 53 106) no Hoare annotation was computed. [2020-09-25 11:10:44,105 INFO L268 CegarLoopResult]: For program point L49(lines 49 108) no Hoare annotation was computed. [2020-09-25 11:10:44,105 INFO L264 CegarLoopResult]: At program point L99(lines 17 134) the Hoare annotation is: (or (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2)) [2020-09-25 11:10:44,105 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-25 11:10:44,105 INFO L264 CegarLoopResult]: At program point L25(lines 24 127) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 11:10:44,106 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-25 11:10:44,106 INFO L264 CegarLoopResult]: At program point L50(lines 49 108) 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 11:10:44,106 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-25 11:10:44,106 INFO L268 CegarLoopResult]: For program point L92-1(lines 53 106) no Hoare annotation was computed. [2020-09-25 11:10:44,106 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 11:10:44,106 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 11:10:44,107 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 11:10:44,107 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 11:10:44,107 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-25 11:10:44,107 INFO L268 CegarLoopResult]: For program point L68-1(line 68) no Hoare annotation was computed. [2020-09-25 11:10:44,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:10:44 BoogieIcfgContainer [2020-09-25 11:10:44,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:10:44,137 INFO L168 Benchmark]: Toolchain (without parser) took 2691.83 ms. Allocated memory was 147.8 MB in the beginning and 232.8 MB in the end (delta: 84.9 MB). Free memory was 103.3 MB in the beginning and 150.3 MB in the end (delta: -47.0 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:10:44,138 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 11:10:44,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.12 ms. Allocated memory is still 147.8 MB. Free memory was 102.6 MB in the beginning and 92.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:10:44,140 INFO L168 Benchmark]: Boogie Preprocessor took 139.28 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 183.1 MB in the end (delta: -90.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-25 11:10:44,142 INFO L168 Benchmark]: RCFGBuilder took 356.71 ms. Allocated memory is still 205.0 MB. Free memory was 183.1 MB in the beginning and 167.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-09-25 11:10:44,143 INFO L168 Benchmark]: TraceAbstraction took 1802.21 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 166.8 MB in the beginning and 150.3 MB in the end (delta: 16.5 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2020-09-25 11:10:44,147 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 380.12 ms. Allocated memory is still 147.8 MB. Free memory was 102.6 MB in the beginning and 92.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.28 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 92.5 MB in the beginning and 183.1 MB in the end (delta: -90.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.71 ms. Allocated memory is still 205.0 MB. Free memory was 183.1 MB in the beginning and 167.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1802.21 ms. Allocated memory was 205.0 MB in the beginning and 232.8 MB in the end (delta: 27.8 MB). Free memory was 166.8 MB in the beginning and 150.3 MB in the end (delta: 16.5 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 138]: 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: 49]: 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: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) || blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 115 SDslu, 168 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 31 NumberOfFragments, 65 HoareAnnotationTreeSize, 11 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 8527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 40/40 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...