/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:06:46,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:06:46,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:06:46,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:06:46,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:06:46,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:06:46,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:06:46,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:06:46,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:06:46,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:06:46,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:06:46,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:06:46,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:06:46,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:06:46,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:06:46,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:06:46,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:06:46,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:06:46,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:06:46,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:06:46,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:06:46,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:06:46,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:06:46,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:06:46,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:06:46,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:06:46,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:06:46,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:06:46,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:06:46,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 02:06:46,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:06:46,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:06:46,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:06:46,418 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 02:06:46,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:06:46,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:06:46,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:06:46,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:06:46,481 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:06:46,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:06:46,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:06:46,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:06:46,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:06:46,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:06:46,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:06:46,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:06:46,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:06:46,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:06:46,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:06:46,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:06:46,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:06:46,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:06:46,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:06:46,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:06:46,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:06:46,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:06:46,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:06:46,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:06:46,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:06:46,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:06:46,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:06:46,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:06:46,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:06:46,489 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:06:47,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:06:47,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:06:47,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:06:47,048 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:06:47,048 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:06:47,049 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-09-25 02:06:47,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48573e529/a2c87776b8854296ade0df3df26b3a60/FLAG6e3927a4d [2020-09-25 02:06:47,688 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:06:47,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test11.c [2020-09-25 02:06:47,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48573e529/a2c87776b8854296ade0df3df26b3a60/FLAG6e3927a4d [2020-09-25 02:06:48,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48573e529/a2c87776b8854296ade0df3df26b3a60 [2020-09-25 02:06:48,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:06:48,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:06:48,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:06:48,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:06:48,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:06:48,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0ef97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48, skipping insertion in model container [2020-09-25 02:06:48,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:06:48,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:06:48,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:06:48,332 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:06:48,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:06:48,373 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:06:48,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48 WrapperNode [2020-09-25 02:06:48,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:06:48,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:06:48,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:06:48,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:06:48,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (1/1) ... [2020-09-25 02:06:48,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:06:48,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:06:48,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:06:48,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:06:48,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (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 02:06:48,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:06:48,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:06:48,597 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-25 02:06:48,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:06:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:06:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:06:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 02:06:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-25 02:06:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:06:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:06:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:06:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:06:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:06:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:06:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:06:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:06:48,945 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:06:48,945 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:06:48,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:06:48 BoogieIcfgContainer [2020-09-25 02:06:48,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:06:48,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:06:48,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:06:48,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:06:48,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:06:48" (1/3) ... [2020-09-25 02:06:48,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcefd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:06:48, skipping insertion in model container [2020-09-25 02:06:48,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:06:48" (2/3) ... [2020-09-25 02:06:48,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcefd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:06:48, skipping insertion in model container [2020-09-25 02:06:48,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:06:48" (3/3) ... [2020-09-25 02:06:48,977 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2020-09-25 02:06:48,987 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:06:48,995 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:06:49,013 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:06:49,041 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:06:49,042 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:06:49,042 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:06:49,042 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:06:49,042 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:06:49,042 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:06:49,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:06:49,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:06:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 02:06:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 02:06:49,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:49,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:06:49,076 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:49,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:49,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1040052544, now seen corresponding path program 1 times [2020-09-25 02:06:49,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:49,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707338913] [2020-09-25 02:06:49,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:49,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:49,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:49,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 02:06:49,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:06:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-25 02:06:49,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:06:49,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:06:49,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 02:06:49,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:06:50,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:50,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:06:50,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:06:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 02:06:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:06:50,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:06:50,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:06:50,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:50,111 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 02:06:50,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707338913] [2020-09-25 02:06:50,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:50,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:06:50,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75616608] [2020-09-25 02:06:50,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:06:50,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:50,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:06:50,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:06:50,142 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states. [2020-09-25 02:06:50,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:50,447 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2020-09-25 02:06:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:06:50,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-25 02:06:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:50,463 INFO L225 Difference]: With dead ends: 93 [2020-09-25 02:06:50,463 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 02:06:50,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:06:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 02:06:50,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-25 02:06:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 02:06:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-09-25 02:06:50,521 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 43 [2020-09-25 02:06:50,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:50,522 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-09-25 02:06:50,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:06:50,523 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-09-25 02:06:50,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 02:06:50,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:50,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:06:50,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:06:50,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:50,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:50,526 INFO L82 PathProgramCache]: Analyzing trace with hash -981249608, now seen corresponding path program 1 times [2020-09-25 02:06:50,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:50,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945096465] [2020-09-25 02:06:50,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 02:06:50,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:06:50,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 02:06:50,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:06:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 02:06:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:06:50,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:50,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:06:50,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:50,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:50,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 02:06:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:50,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:50,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:50,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:06:50,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:06:50,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:50,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:50,955 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 02:06:50,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945096465] [2020-09-25 02:06:50,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:50,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:06:50,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040368253] [2020-09-25 02:06:50,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:06:50,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:50,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:06:50,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:06:50,961 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-09-25 02:06:51,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:51,115 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2020-09-25 02:06:51,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:06:51,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-09-25 02:06:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:51,117 INFO L225 Difference]: With dead ends: 71 [2020-09-25 02:06:51,118 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 02:06:51,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:06:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 02:06:51,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2020-09-25 02:06:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 02:06:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-09-25 02:06:51,130 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 46 [2020-09-25 02:06:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:51,131 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-09-25 02:06:51,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:06:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-09-25 02:06:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 02:06:51,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:51,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:06:51,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:06:51,134 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:51,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:51,135 INFO L82 PathProgramCache]: Analyzing trace with hash 176769226, now seen corresponding path program 1 times [2020-09-25 02:06:51,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:51,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258617336] [2020-09-25 02:06:51,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:51,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:51,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:51,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:06:51,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:06:51,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-09-25 02:06:51,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:51,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:06:51,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 02:06:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:06:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:51,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:51,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:51,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:51,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:51,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:06:51,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:51,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 02:06:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:51,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:51,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:06:51,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:06:51,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:51,750 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 02:06:51,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258617336] [2020-09-25 02:06:51,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:51,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:06:51,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122292732] [2020-09-25 02:06:51,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:06:51,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:51,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:06:51,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:06:51,753 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 9 states. [2020-09-25 02:06:52,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:52,047 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-25 02:06:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:06:52,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-09-25 02:06:52,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:52,049 INFO L225 Difference]: With dead ends: 66 [2020-09-25 02:06:52,049 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 02:06:52,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:06:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 02:06:52,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2020-09-25 02:06:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 02:06:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-25 02:06:52,058 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 49 [2020-09-25 02:06:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:52,059 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-25 02:06:52,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:06:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-25 02:06:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 02:06:52,061 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:52,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:06:52,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:06:52,061 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:52,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1253491024, now seen corresponding path program 1 times [2020-09-25 02:06:52,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:52,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042556357] [2020-09-25 02:06:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:52,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:52,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:52,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:52,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:52,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:06:52,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:06:52,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 655 [2020-09-25 02:06:52,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:06:52,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 02:06:52,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:06:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:52,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:52,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:52,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:52,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:52,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:06:52,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:52,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:52,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:52,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 02:06:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:52,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:52,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:52,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:06:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:06:52,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:06:52,835 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 02:06:52,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042556357] [2020-09-25 02:06:52,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:52,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:06:52,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695018682] [2020-09-25 02:06:52,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:06:52,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:52,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:06:52,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:06:52,838 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 5 states. [2020-09-25 02:06:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:52,960 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2020-09-25 02:06:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:06:52,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-09-25 02:06:52,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:52,962 INFO L225 Difference]: With dead ends: 67 [2020-09-25 02:06:52,962 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 02:06:52,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:06:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 02:06:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-25 02:06:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 02:06:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-09-25 02:06:52,969 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 50 [2020-09-25 02:06:52,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:52,970 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-09-25 02:06:52,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:06:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-09-25 02:06:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 02:06:52,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:06:52,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:06:52,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:06:52,972 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:06:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:06:52,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1988535102, now seen corresponding path program 1 times [2020-09-25 02:06:52,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:06:52,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657669458] [2020-09-25 02:06:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:06:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:53,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:53,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:53,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 02:06:53,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 02:06:53,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:06:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:06:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 02:06:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:53,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:06:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:53,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:06:53,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:06:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:06:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:06:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:53,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 02:06:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:06:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:06:53,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:06:53,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 02:06:53,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:06:53,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:06:53,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:06:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:06:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:06:53,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:06:53,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:06:53,264 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 02:06:53,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657669458] [2020-09-25 02:06:53,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:06:53,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:06:53,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007792939] [2020-09-25 02:06:53,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:06:53,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:06:53,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:06:53,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:06:53,266 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 6 states. [2020-09-25 02:06:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:06:53,411 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-09-25 02:06:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:06:53,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-25 02:06:53,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:06:53,412 INFO L225 Difference]: With dead ends: 55 [2020-09-25 02:06:53,412 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:06:53,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:06:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:06:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:06:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:06:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:06:53,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-09-25 02:06:53,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:06:53,414 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:06:53,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:06:53,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:06:53,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:06:53,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:06:53,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:06:53,538 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 02:06:53,539 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 02:06:53,539 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 5) no Hoare annotation was computed. [2020-09-25 02:06:53,539 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 02:06:53,539 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 02:06:53,540 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 02:06:53,540 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-09-25 02:06:53,540 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-09-25 02:06:53,540 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:06:53,540 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 7 10) no Hoare annotation was computed. [2020-09-25 02:06:53,540 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-09-25 02:06:53,541 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L268 CegarLoopResult]: For program point L9-3(line 9) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L268 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L268 CegarLoopResult]: For program point L9-5(line 9) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:06:53,541 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:06:53,542 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:06:53,542 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:06:53,542 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 02:06:53,542 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 32) no Hoare annotation was computed. [2020-09-25 02:06:53,542 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 02:06:53,542 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 02:06:53,542 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,543 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,543 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,543 INFO L268 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,543 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 02:06:53,543 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,543 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L19-6(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L19-7(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L19-8(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L19-9(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L19-10(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,544 INFO L268 CegarLoopResult]: For program point L19-11(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,545 INFO L268 CegarLoopResult]: For program point L19-12(line 19) no Hoare annotation was computed. [2020-09-25 02:06:53,545 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 02:06:53,545 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-09-25 02:06:53,545 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 02:06:53,545 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 02:06:53,545 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 02:06:53,546 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 02:06:53,546 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 02:06:53,546 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false [2020-09-25 02:06:53,546 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-25 02:06:53,546 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point L17-3(line 17) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 32) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,547 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,548 INFO L268 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,548 INFO L268 CegarLoopResult]: For program point L13-5(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,548 INFO L268 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-09-25 02:06:53,548 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2020-09-25 02:06:53,548 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-25 02:06:53,548 INFO L268 CegarLoopResult]: For program point L18(lines 18 19) no Hoare annotation was computed. [2020-09-25 02:06:53,549 INFO L268 CegarLoopResult]: For program point L18-1(lines 18 19) no Hoare annotation was computed. [2020-09-25 02:06:53,549 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 21) no Hoare annotation was computed. [2020-09-25 02:06:53,549 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 02:06:53,549 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 19) no Hoare annotation was computed. [2020-09-25 02:06:53,549 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 02:06:53,549 INFO L268 CegarLoopResult]: For program point L18-5(lines 18 19) no Hoare annotation was computed. [2020-09-25 02:06:53,550 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-25 02:06:53,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:06:53 BoogieIcfgContainer [2020-09-25 02:06:53,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:06:53,567 INFO L168 Benchmark]: Toolchain (without parser) took 5528.38 ms. Allocated memory was 146.8 MB in the beginning and 246.4 MB in the end (delta: 99.6 MB). Free memory was 103.4 MB in the beginning and 97.3 MB in the end (delta: 6.0 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:06:53,568 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 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 02:06:53,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.54 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:06:53,570 INFO L168 Benchmark]: Boogie Preprocessor took 129.75 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.9 MB in the beginning and 181.3 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:06:53,571 INFO L168 Benchmark]: RCFGBuilder took 446.92 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 161.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:06:53,572 INFO L168 Benchmark]: TraceAbstraction took 4608.91 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 160.8 MB in the beginning and 97.3 MB in the end (delta: 63.4 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:06:53,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 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 327.54 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.75 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.9 MB in the beginning and 181.3 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.92 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 161.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4608.91 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 160.8 MB in the beginning and 97.3 MB in the end (delta: 63.4 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 259 SDtfs, 202 SDslu, 464 SDs, 0 SdLazy, 465 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 47 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 29416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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...