/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/heap-data/shared_mem2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:10:01,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:10:01,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:10:01,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:10:01,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:10:01,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:10:01,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:10:01,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:10:01,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:10:01,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:10:01,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:10:01,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:10:01,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:10:01,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:10:01,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:10:01,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:10:01,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:10:01,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:10:01,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:10:01,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:10:01,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:10:01,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:10:01,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:10:01,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:10:01,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:10:01,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:10:01,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:10:01,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:10:01,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:10:01,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:10:01,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:10:01,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:10:01,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:10:01,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:10:01,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:10:01,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:10:01,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:10:01,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:10:01,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:10:01,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:10:01,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:10:01,284 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 [2020-10-27 01:10:01,326 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:10:01,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:10:01,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:10:01,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:10:01,332 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:10:01,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:10:01,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:10:01,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:10:01,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:10:01,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:10:01,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:10:01,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:10:01,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:10:01,335 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:10:01,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:10:01,336 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:10:01,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:10:01,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:10:01,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:10:01,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:10:01,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:10:01,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:10:01,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:10:01,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:10:01,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:10:01,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:10:01,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:10:01,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:10:01,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:10:01,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:10:01,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:10:01,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:10:01,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:10:01,793 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:10:01,794 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:10:01,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem2.i [2020-10-27 01:10:01,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab29e2cdf/ead32c1f5a154ec88bec224ffc9e493e/FLAG45033cf87 [2020-10-27 01:10:02,645 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:10:02,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-data/shared_mem2.i [2020-10-27 01:10:02,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab29e2cdf/ead32c1f5a154ec88bec224ffc9e493e/FLAG45033cf87 [2020-10-27 01:10:02,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab29e2cdf/ead32c1f5a154ec88bec224ffc9e493e [2020-10-27 01:10:02,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:10:02,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:10:02,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:10:02,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:10:02,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:10:02,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:10:02" (1/1) ... [2020-10-27 01:10:02,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee9c0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:02, skipping insertion in model container [2020-10-27 01:10:02,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:10:02" (1/1) ... [2020-10-27 01:10:02,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:10:02,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:10:03,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:10:03,446 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:10:03,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:10:03,587 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:10:03,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03 WrapperNode [2020-10-27 01:10:03,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:10:03,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:10:03,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:10:03,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:10:03,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (1/1) ... [2020-10-27 01:10:03,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:10:03,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:10:03,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:10:03,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:10:03,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (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 [2020-10-27 01:10:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:10:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:10:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:10:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 01:10:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 01:10:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:10:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:10:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:10:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:10:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 01:10:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 01:10:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:10:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:10:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 01:10:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 01:10:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 01:10:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 01:10:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 01:10:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 01:10:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 01:10:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 01:10:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 01:10:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 01:10:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 01:10:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 01:10:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 01:10:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 01:10:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 01:10:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 01:10:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 01:10:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 01:10:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 01:10:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 01:10:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 01:10:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 01:10:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 01:10:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 01:10:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 01:10:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 01:10:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 01:10:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 01:10:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 01:10:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 01:10:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 01:10:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 01:10:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 01:10:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 01:10:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 01:10:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 01:10:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 01:10:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 01:10:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 01:10:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 01:10:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 01:10:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 01:10:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 01:10:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 01:10:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 01:10:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 01:10:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 01:10:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 01:10:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 01:10:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 01:10:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 01:10:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 01:10:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 01:10:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 01:10:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 01:10:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 01:10:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 01:10:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 01:10:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 01:10:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 01:10:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 01:10:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 01:10:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 01:10:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 01:10:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 01:10:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 01:10:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 01:10:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 01:10:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 01:10:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 01:10:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:10:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 01:10:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:10:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 01:10:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:10:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 01:10:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:10:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:10:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:10:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:10:04,330 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:10:04,330 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 01:10:04,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:10:04 BoogieIcfgContainer [2020-10-27 01:10:04,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:10:04,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:10:04,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:10:04,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:10:04,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:10:02" (1/3) ... [2020-10-27 01:10:04,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58009826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:10:04, skipping insertion in model container [2020-10-27 01:10:04,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:10:03" (2/3) ... [2020-10-27 01:10:04,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58009826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:10:04, skipping insertion in model container [2020-10-27 01:10:04,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:10:04" (3/3) ... [2020-10-27 01:10:04,341 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2020-10-27 01:10:04,353 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:10:04,358 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:10:04,372 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:10:04,399 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:10:04,400 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:10:04,400 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:10:04,400 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:10:04,400 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:10:04,400 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:10:04,400 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:10:04,400 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:10:04,418 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-27 01:10:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 01:10:04,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:04,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:04,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash 29789142, now seen corresponding path program 1 times [2020-10-27 01:10:04,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:04,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363220275] [2020-10-27 01:10:04,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:04,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:04,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:04,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:04,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 01:10:04,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:10:04,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-27 01:10:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:10:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:10:04,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:04,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:04,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:04,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:10:04,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:04,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363220275] [2020-10-27 01:10:04,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:10:04,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 01:10:04,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158545213] [2020-10-27 01:10:04,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 01:10:04,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:04,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 01:10:04,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 01:10:04,988 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-10-27 01:10:05,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:05,080 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2020-10-27 01:10:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:10:05,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-27 01:10:05,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:05,090 INFO L225 Difference]: With dead ends: 41 [2020-10-27 01:10:05,090 INFO L226 Difference]: Without dead ends: 20 [2020-10-27 01:10:05,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 01:10:05,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-27 01:10:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-27 01:10:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-27 01:10:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-10-27 01:10:05,134 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2020-10-27 01:10:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:05,134 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-10-27 01:10:05,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 01:10:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-10-27 01:10:05,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 01:10:05,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:05,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:05,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:10:05,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:05,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:05,137 INFO L82 PathProgramCache]: Analyzing trace with hash 793715911, now seen corresponding path program 1 times [2020-10-27 01:10:05,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:05,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403644510] [2020-10-27 01:10:05,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:05,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:05,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:05,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 01:10:05,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:05,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-27 01:10:05,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:10:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:10:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:05,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:05,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:05,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:05,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:05,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:10:05,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:05,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403644510] [2020-10-27 01:10:05,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:10:05,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:10:05,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174568435] [2020-10-27 01:10:05,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:10:05,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:05,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:10:05,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:10:05,523 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 5 states. [2020-10-27 01:10:05,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:05,702 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2020-10-27 01:10:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 01:10:05,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-27 01:10:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:05,706 INFO L225 Difference]: With dead ends: 34 [2020-10-27 01:10:05,707 INFO L226 Difference]: Without dead ends: 28 [2020-10-27 01:10:05,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:10:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-27 01:10:05,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-27 01:10:05,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 01:10:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-10-27 01:10:05,726 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 16 [2020-10-27 01:10:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:05,727 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-10-27 01:10:05,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:10:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-10-27 01:10:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:10:05,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:05,729 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:05,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:10:05,729 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:05,736 INFO L82 PathProgramCache]: Analyzing trace with hash 525141040, now seen corresponding path program 1 times [2020-10-27 01:10:05,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:05,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61879220] [2020-10-27 01:10:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:05,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:06,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:06,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 01:10:06,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-27 01:10:06,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:10:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 01:10:06,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:06,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:06,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:06,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:06,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:10:06,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:06,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:06,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61879220] [2020-10-27 01:10:06,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:06,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 01:10:06,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398785141] [2020-10-27 01:10:06,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:10:06,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:06,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:10:06,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:10:06,259 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 6 states. [2020-10-27 01:10:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:06,381 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2020-10-27 01:10:06,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:10:06,381 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 01:10:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:06,384 INFO L225 Difference]: With dead ends: 42 [2020-10-27 01:10:06,384 INFO L226 Difference]: Without dead ends: 36 [2020-10-27 01:10:06,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:10:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-27 01:10:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-10-27 01:10:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 01:10:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2020-10-27 01:10:06,394 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 19 [2020-10-27 01:10:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:06,394 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-10-27 01:10:06,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:10:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2020-10-27 01:10:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:10:06,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:06,395 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:06,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:10:06,396 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:06,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1951293278, now seen corresponding path program 1 times [2020-10-27 01:10:06,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:06,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250181907] [2020-10-27 01:10:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:06,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:06,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:06,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:07,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:07,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 01:10:07,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:10:07,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-10-27 01:10:07,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:10:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 01:10:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:07,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:07,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:07,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:07,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:10:07,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:07,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250181907] [2020-10-27 01:10:07,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:07,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 01:10:07,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118717373] [2020-10-27 01:10:07,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:10:07,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:07,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:10:07,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:10:07,369 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 7 states. [2020-10-27 01:10:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:07,722 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2020-10-27 01:10:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:10:07,723 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-27 01:10:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:07,724 INFO L225 Difference]: With dead ends: 50 [2020-10-27 01:10:07,725 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 01:10:07,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:10:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 01:10:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2020-10-27 01:10:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 01:10:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2020-10-27 01:10:07,734 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 20 [2020-10-27 01:10:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:07,734 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-10-27 01:10:07,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:10:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2020-10-27 01:10:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 01:10:07,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:07,735 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:07,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 01:10:07,736 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:07,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:07,737 INFO L82 PathProgramCache]: Analyzing trace with hash 935231527, now seen corresponding path program 2 times [2020-10-27 01:10:07,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:07,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553933073] [2020-10-27 01:10:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:07,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:08,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:08,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 01:10:08,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:08,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-27 01:10:08,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:10:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 01:10:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:08,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:08,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:08,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 01:10:08,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:08,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 01:10:08,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:08,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553933073] [2020-10-27 01:10:08,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:08,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 01:10:08,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984035886] [2020-10-27 01:10:08,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:10:08,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:08,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:10:08,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:10:08,201 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 7 states. [2020-10-27 01:10:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:08,338 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2020-10-27 01:10:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:10:08,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-27 01:10:08,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:08,339 INFO L225 Difference]: With dead ends: 49 [2020-10-27 01:10:08,339 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 01:10:08,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:10:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 01:10:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2020-10-27 01:10:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 01:10:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-27 01:10:08,355 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 22 [2020-10-27 01:10:08,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:08,356 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-27 01:10:08,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:10:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-10-27 01:10:08,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 01:10:08,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:08,357 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] [2020-10-27 01:10:08,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 01:10:08,358 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:08,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:08,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1779196487, now seen corresponding path program 1 times [2020-10-27 01:10:08,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:08,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578378603] [2020-10-27 01:10:08,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:08,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:08,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:08,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1861 [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:10:10,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 01:10:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:10,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:10,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:10,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:10,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 01:10:10,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:10,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:10,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578378603] [2020-10-27 01:10:10,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:10,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:10:10,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325857982] [2020-10-27 01:10:10,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:10:10,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:10,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:10:10,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:10:10,645 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 8 states. [2020-10-27 01:10:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:10,889 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2020-10-27 01:10:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 01:10:10,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-27 01:10:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:10,892 INFO L225 Difference]: With dead ends: 49 [2020-10-27 01:10:10,892 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 01:10:10,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-27 01:10:10,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 01:10:10,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2020-10-27 01:10:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-27 01:10:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-10-27 01:10:10,903 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 23 [2020-10-27 01:10:10,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:10,903 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-27 01:10:10,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:10:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-10-27 01:10:10,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 01:10:10,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:10,906 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:10,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 01:10:10,907 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:10,907 INFO L82 PathProgramCache]: Analyzing trace with hash 947290999, now seen corresponding path program 1 times [2020-10-27 01:10:10,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:10,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010048351] [2020-10-27 01:10:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:10,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:11,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:11,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:11,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:12,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:12,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 01:10:12,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 01:10:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1581 [2020-10-27 01:10:12,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:10:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 01:10:12,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:12,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:12,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:12,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:12,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:12,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010048351] [2020-10-27 01:10:12,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:12,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:10:12,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315822622] [2020-10-27 01:10:12,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:10:12,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:12,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:10:12,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:10:12,690 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 8 states. [2020-10-27 01:10:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:13,339 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2020-10-27 01:10:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:10:13,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-27 01:10:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:13,340 INFO L225 Difference]: With dead ends: 57 [2020-10-27 01:10:13,340 INFO L226 Difference]: Without dead ends: 51 [2020-10-27 01:10:13,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:10:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-27 01:10:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2020-10-27 01:10:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 01:10:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-10-27 01:10:13,356 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 24 [2020-10-27 01:10:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:13,357 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-10-27 01:10:13,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:10:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-10-27 01:10:13,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 01:10:13,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:13,362 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:13,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 01:10:13,363 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:13,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1534097013, now seen corresponding path program 2 times [2020-10-27 01:10:13,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:13,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079672415] [2020-10-27 01:10:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:13,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:13,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:13,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:16,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:16,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 01:10:16,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 01:10:16,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2939 [2020-10-27 01:10:16,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:16,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 01:10:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 01:10:16,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:16,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:16,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:16,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:16,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:16,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 01:10:16,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:16,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:16,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:16,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:16,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 01:10:16,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079672415] [2020-10-27 01:10:16,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:16,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 01:10:16,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058190118] [2020-10-27 01:10:16,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 01:10:16,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:16,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 01:10:16,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-27 01:10:16,667 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 10 states. [2020-10-27 01:10:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:16,973 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2020-10-27 01:10:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:10:16,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-27 01:10:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:16,978 INFO L225 Difference]: With dead ends: 56 [2020-10-27 01:10:16,978 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 01:10:16,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-27 01:10:16,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 01:10:16,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-27 01:10:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-27 01:10:16,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-10-27 01:10:16,988 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 24 [2020-10-27 01:10:16,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:16,988 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-10-27 01:10:16,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 01:10:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-10-27 01:10:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 01:10:16,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:16,989 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:16,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 01:10:16,990 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:16,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1211558368, now seen corresponding path program 1 times [2020-10-27 01:10:16,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:16,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174051620] [2020-10-27 01:10:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:17,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:17,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:17,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:18,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:22,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:22,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 01:10:22,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 01:10:22,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 01:10:22,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:22,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 01:10:22,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:22,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 01:10:22,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:22,314 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-10-27 01:10:22,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:22,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:10:22,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:22,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174051620] [2020-10-27 01:10:22,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:22,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 01:10:22,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659191438] [2020-10-27 01:10:22,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 01:10:22,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:22,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 01:10:22,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 01:10:22,398 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2020-10-27 01:10:22,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:22,982 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-10-27 01:10:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 01:10:22,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-27 01:10:22,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:22,984 INFO L225 Difference]: With dead ends: 49 [2020-10-27 01:10:22,984 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 01:10:22,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 01:10:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 01:10:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2020-10-27 01:10:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-27 01:10:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-10-27 01:10:22,992 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 27 [2020-10-27 01:10:22,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:22,993 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-27 01:10:22,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 01:10:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-10-27 01:10:22,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 01:10:22,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:22,994 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:22,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 01:10:22,994 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:22,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1798364382, now seen corresponding path program 2 times [2020-10-27 01:10:22,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:22,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022796315] [2020-10-27 01:10:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:23,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:23,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:23,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:24,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:27,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4284 [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 01:10:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:27,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:27,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:27,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:27,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:27,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:27,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:10:27,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:27,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:27,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:27,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:27,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:27,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022796315] [2020-10-27 01:10:27,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:27,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 01:10:27,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723996592] [2020-10-27 01:10:27,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:10:27,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:27,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:10:27,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:10:27,715 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 12 states. [2020-10-27 01:10:28,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:28,418 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-10-27 01:10:28,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 01:10:28,419 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2020-10-27 01:10:28,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:28,420 INFO L225 Difference]: With dead ends: 52 [2020-10-27 01:10:28,420 INFO L226 Difference]: Without dead ends: 46 [2020-10-27 01:10:28,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-10-27 01:10:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-27 01:10:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2020-10-27 01:10:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-27 01:10:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-10-27 01:10:28,429 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 27 [2020-10-27 01:10:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:28,429 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-27 01:10:28,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:10:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-10-27 01:10:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 01:10:28,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:28,430 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:28,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 01:10:28,431 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:28,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1691619337, now seen corresponding path program 2 times [2020-10-27 01:10:28,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:28,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384594640] [2020-10-27 01:10:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:28,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:28,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:29,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:30,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:30,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:33,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:33,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:10:33,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:34,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:34,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:10:34,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384594640] [2020-10-27 01:10:34,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:34,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 01:10:34,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998966008] [2020-10-27 01:10:34,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 01:10:34,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:34,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 01:10:34,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:10:34,034 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 13 states. [2020-10-27 01:10:34,200 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-10-27 01:10:34,440 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-10-27 01:10:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:35,126 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-10-27 01:10:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 01:10:35,133 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-27 01:10:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:35,133 INFO L225 Difference]: With dead ends: 57 [2020-10-27 01:10:35,134 INFO L226 Difference]: Without dead ends: 51 [2020-10-27 01:10:35,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-10-27 01:10:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-27 01:10:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2020-10-27 01:10:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 01:10:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2020-10-27 01:10:35,142 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 31 [2020-10-27 01:10:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:35,142 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2020-10-27 01:10:35,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 01:10:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-10-27 01:10:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 01:10:35,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:10:35,144 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:10:35,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 01:10:35,144 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:10:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:10:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash -103271435, now seen corresponding path program 3 times [2020-10-27 01:10:35,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:10:35,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791724999] [2020-10-27 01:10:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:10:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:35,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:35,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:35,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:36,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:37,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:40,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:40,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 01:10:40,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 01:10:40,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 01:10:40,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 01:10:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:10:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 01:10:40,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:40,538 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-10-27 01:10:40,675 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-10-27 01:10:40,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:10:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:10:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:10:40,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:10:40,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:10:40,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:10:40,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:10:40,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:10:40,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:10:40,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:10:40,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:10:40,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:10:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 01:10:40,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791724999] [2020-10-27 01:10:40,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:10:40,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 01:10:40,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898815268] [2020-10-27 01:10:40,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 01:10:40,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:10:40,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 01:10:40,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:10:40,807 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 12 states. [2020-10-27 01:10:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:10:41,140 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2020-10-27 01:10:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 01:10:41,140 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-10-27 01:10:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:10:41,141 INFO L225 Difference]: With dead ends: 42 [2020-10-27 01:10:41,141 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:10:41,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-27 01:10:41,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:10:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:10:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:10:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:10:41,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-10-27 01:10:41,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:10:41,144 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:10:41,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 01:10:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:10:41,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:10:41,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 01:10:41,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:10:41,300 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 67 [2020-10-27 01:10:41,521 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2020-10-27 01:10:41,528 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 13) no Hoare annotation was computed. [2020-10-27 01:10:41,528 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-27 01:10:41,529 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 13) the Hoare annotation is: true [2020-10-27 01:10:41,529 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-27 01:10:41,529 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-27 01:10:41,529 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:10:41,529 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-27 01:10:41,529 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:10:41,529 INFO L274 CegarLoopResult]: For program point __bswap_32ENTRY(lines 75 79) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point __bswap_32FINAL(lines 75 79) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point __bswap_32EXIT(lines 75 79) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point __bswap_64ENTRY(lines 80 84) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point __bswap_64FINAL(lines 80 84) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point __bswap_64EXIT(lines 80 84) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 01:10:41,530 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:10:41,530 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:10:41,530 INFO L270 CegarLoopResult]: At program point L601(line 601) the Hoare annotation is: false [2020-10-27 01:10:41,531 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 576 602) no Hoare annotation was computed. [2020-10-27 01:10:41,531 INFO L274 CegarLoopResult]: For program point L595-1(lines 595 599) no Hoare annotation was computed. [2020-10-27 01:10:41,531 INFO L270 CegarLoopResult]: At program point L595-3(lines 595 599) the Hoare annotation is: (<= (select (select |#memory_int| main_~m~0.base) main_~m~0.offset) 100) [2020-10-27 01:10:41,531 INFO L274 CegarLoopResult]: For program point L595-4(lines 595 599) no Hoare annotation was computed. [2020-10-27 01:10:41,531 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 576 602) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-27 01:10:41,531 INFO L274 CegarLoopResult]: For program point L600(lines 600 601) no Hoare annotation was computed. [2020-10-27 01:10:41,531 INFO L274 CegarLoopResult]: For program point L600-1(lines 576 602) no Hoare annotation was computed. [2020-10-27 01:10:41,531 INFO L274 CegarLoopResult]: For program point L596(lines 596 597) no Hoare annotation was computed. [2020-10-27 01:10:41,532 INFO L274 CegarLoopResult]: For program point L596-2(lines 596 597) no Hoare annotation was computed. [2020-10-27 01:10:41,532 INFO L274 CegarLoopResult]: For program point L586(lines 586 592) no Hoare annotation was computed. [2020-10-27 01:10:41,532 INFO L270 CegarLoopResult]: At program point L586-2(lines 584 593) the Hoare annotation is: (let ((.cse4 (+ main_~head~0.offset 8))) (let ((.cse1 (select (select |#memory_$Pointer$.base| main_~head~0.base) .cse4)) (.cse0 (select |#memory_$Pointer$.base| main_~list~0.base)) (.cse3 (+ main_~list~0.offset 4)) (.cse2 (select (select |#memory_$Pointer$.offset| main_~head~0.base) .cse4))) (and (= main_~m~0.offset (select (select |#memory_$Pointer$.offset| (select .cse0 (+ main_~list~0.offset 8))) 4)) (<= (select (select |#memory_int| .cse1) .cse2) 9) (= main_~head~0.base main_~list~0.base) (not (= main_~m~0.base main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (= main_~m~0.base (select (select |#memory_$Pointer$.base| .cse1) (+ main_~head~0.offset 4))) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) .cse3) main_~m~0.offset) (= main_~m~0.base (select .cse0 .cse3)) (= main_~list~0.offset main_~head~0.offset) (= (select |#valid| main_~m~0.base) 1) (= main_~head~0.offset 0) (= (select (select |#memory_int| main_~m~0.base) main_~m~0.offset) 0) (= (select (select |#memory_int| main_~head~0.base) main_~head~0.offset) 1) (= .cse2 0)))) [2020-10-27 01:10:41,532 INFO L274 CegarLoopResult]: For program point L584-1(lines 584 593) no Hoare annotation was computed. [2020-10-27 01:10:41,532 INFO L274 CegarLoopResult]: For program point L584-3(lines 584 593) no Hoare annotation was computed. [2020-10-27 01:10:41,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,565 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,565 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,568 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,568 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,571 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:10:41 BoogieIcfgContainer [2020-10-27 01:10:41,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:10:41,578 INFO L168 Benchmark]: Toolchain (without parser) took 38715.40 ms. Allocated memory was 151.0 MB in the beginning and 576.7 MB in the end (delta: 425.7 MB). Free memory was 124.4 MB in the beginning and 390.9 MB in the end (delta: -266.5 MB). Peak memory consumption was 159.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:10:41,578 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:10:41,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.30 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 102.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:10:41,580 INFO L168 Benchmark]: Boogie Preprocessor took 64.98 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 99.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:10:41,580 INFO L168 Benchmark]: RCFGBuilder took 677.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.8 MB in the beginning and 121.7 MB in the end (delta: -21.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:10:41,581 INFO L168 Benchmark]: TraceAbstraction took 37242.21 ms. Allocated memory was 151.0 MB in the beginning and 576.7 MB in the end (delta: 425.7 MB). Free memory was 121.7 MB in the beginning and 390.9 MB in the end (delta: -269.2 MB). Peak memory consumption was 156.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:10:41,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 714.30 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 102.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.98 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 99.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 677.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.8 MB in the beginning and 121.7 MB in the end (delta: -21.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37242.21 ms. Allocated memory was 151.0 MB in the beginning and 576.7 MB in the end (delta: 425.7 MB). Free memory was 121.7 MB in the beginning and 390.9 MB in the end (delta: -269.2 MB). Peak memory consumption was 156.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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: 595]: Loop Invariant [2020-10-27 01:10:41,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[m][m] <= 100 - InvariantResult [Line: 584]: Loop Invariant [2020-10-27 01:10:41,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 01:10:41,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 01:10:41,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 01:10:41,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 01:10:41,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((((((((((m == #memory_$Pointer$[#memory_$Pointer$[list][list + 8]][4] && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 8]][#memory_$Pointer$[head][head + 8]] <= 9) && head == list) && !(m == head)) && \valid[head] == 1) && m == #memory_$Pointer$[#memory_$Pointer$[head][head + 8]][head + 4]) && #memory_$Pointer$[list][list + 4] == m) && m == #memory_$Pointer$[list][list + 4]) && list == head) && \valid[m] == 1) && head == 0) && unknown-#memory_int-unknown[m][m] == 0) && unknown-#memory_int-unknown[head][head] == 1) && #memory_$Pointer$[head][head + 8] == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.7s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 186 SDslu, 579 SDs, 0 SdLazy, 866 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 92 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 19 PreInvPairs, 30 NumberOfFragments, 155 HoareAnnotationTreeSize, 19 FomulaSimplifications, 48986 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 370 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 30.9s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 129518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 12/91 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...