/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:50:31,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:50:31,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:50:31,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:50:31,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:50:31,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:50:31,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:50:31,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:50:31,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:50:31,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:50:31,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:50:31,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:50:31,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:50:31,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:50:31,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:50:31,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:50:31,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:50:31,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:50:31,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:50:31,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:50:31,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:50:31,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:50:31,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:50:31,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:50:31,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:50:31,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:50:31,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:50:31,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:50:31,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:50:31,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:50:31,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:50:31,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:50:31,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:50:31,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:50:31,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:50:31,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:50:31,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:50:31,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:50:31,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:50:31,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:50:31,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:50:31,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:50:32,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:50:32,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:50:32,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:50:32,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:50:32,034 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:50:32,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:50:32,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:50:32,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:50:32,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:50:32,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:50:32,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:50:32,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:50:32,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:50:32,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:50:32,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:50:32,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:50:32,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:50:32,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:50:32,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:50:32,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:50:32,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:50:32,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:32,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:50:32,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:50:32,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:50:32,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:50:32,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:50:32,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:50:32,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:50:32,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:50:32,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:50:32,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:50:32,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:50:32,555 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:50:32,555 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:50:32,556 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 07:50:32,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa4861fbb/98d017584ad3443ebc4342cbd679f9c3/FLAGef43be405 [2020-09-25 07:50:33,237 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:50:33,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 07:50:33,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa4861fbb/98d017584ad3443ebc4342cbd679f9c3/FLAGef43be405 [2020-09-25 07:50:33,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa4861fbb/98d017584ad3443ebc4342cbd679f9c3 [2020-09-25 07:50:33,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:50:33,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:50:33,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:33,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:50:33,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:50:33,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:33" (1/1) ... [2020-09-25 07:50:33,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2278f003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:33, skipping insertion in model container [2020-09-25 07:50:33,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:33" (1/1) ... [2020-09-25 07:50:33,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:50:33,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:50:34,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:34,121 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:50:34,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:34,256 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:50:34,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34 WrapperNode [2020-09-25 07:50:34,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:34,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:50:34,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:50:34,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:50:34,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... [2020-09-25 07:50:34,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:50:34,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:50:34,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:50:34,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:50:34,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:50:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:50:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 07:50:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 07:50:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 07:50:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 07:50:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2020-09-25 07:50:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 07:50:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-09-25 07:50:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2020-09-25 07:50:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:50:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:50:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:50:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 07:50:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 07:50:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:50:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:50:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:50:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:50:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:50:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:50:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:50:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:50:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:50:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:50:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:50:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:50:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:50:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:50:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:50:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:50:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:50:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:50:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:50:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:50:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:50:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:50:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:50:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:50:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:50:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:50:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:50:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 07:50:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:50:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:50:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 07:50:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:50:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:50:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 07:50:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:50:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:50:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:50:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:50:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:50:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:50:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:50:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 07:50:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 07:50:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:50:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:50:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2020-09-25 07:50:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:50:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 07:50:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:50:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-09-25 07:50:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2020-09-25 07:50:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:50:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:50:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:50:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:50:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:50:34,815 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 07:50:35,108 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:50:35,109 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 07:50:35,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:35 BoogieIcfgContainer [2020-09-25 07:50:35,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:50:35,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:50:35,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:50:35,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:50:35,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:50:33" (1/3) ... [2020-09-25 07:50:35,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69608659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:35, skipping insertion in model container [2020-09-25 07:50:35,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:34" (2/3) ... [2020-09-25 07:50:35,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69608659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:35, skipping insertion in model container [2020-09-25 07:50:35,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:35" (3/3) ... [2020-09-25 07:50:35,124 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2020-09-25 07:50:35,136 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:50:35,147 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:50:35,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:50:35,202 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:50:35,203 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:50:35,203 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:50:35,203 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:50:35,203 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:50:35,203 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:50:35,204 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:50:35,204 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:50:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-09-25 07:50:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 07:50:35,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:35,242 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:35,242 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:35,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash 422432984, now seen corresponding path program 1 times [2020-09-25 07:50:35,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:35,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162678137] [2020-09-25 07:50:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 07:50:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-25 07:50:35,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:35,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 07:50:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:35,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:50:35,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:35,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:35,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:35,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:50:35,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:35,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:35,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:50:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:35,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:50:35,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:35,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:35,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:35,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 07:50:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:35,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 07:50:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:35,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:50:35,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:50:35,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:35,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:35,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 07:50:35,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:35,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:35,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:50:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:36,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:50:36,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:50:36,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:36,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:50:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:36,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 07:50:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:36,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:36,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:50:36,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:50:36,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:36,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:50:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:36,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:50:36,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162678137] [2020-09-25 07:50:36,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:36,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 07:50:36,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21340494] [2020-09-25 07:50:36,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:36,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:36,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:36,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:36,085 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 4 states. [2020-09-25 07:50:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:36,416 INFO L93 Difference]: Finished difference Result 289 states and 337 transitions. [2020-09-25 07:50:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:36,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-25 07:50:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:36,433 INFO L225 Difference]: With dead ends: 289 [2020-09-25 07:50:36,434 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 07:50:36,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:50:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 07:50:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2020-09-25 07:50:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 07:50:36,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 07:50:36,549 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 54 [2020-09-25 07:50:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:36,549 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 07:50:36,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 07:50:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 07:50:36,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:36,560 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:36,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:50:36,561 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:36,562 INFO L82 PathProgramCache]: Analyzing trace with hash 333013349, now seen corresponding path program 1 times [2020-09-25 07:50:36,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:36,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833896800] [2020-09-25 07:50:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:36,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:36,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:41,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:50:41,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:50:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 07:50:41,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:41,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:50:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 07:50:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 07:50:41,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:50:41,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:41,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:41,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:50:41,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:41,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:41,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:41,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:41,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:50:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:41,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:41,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:41,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:50:41,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 07:50:41,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:41,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:41,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:41,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:41,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:50:41,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:41,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 07:50:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:41,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:41,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:50:41,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:50:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:41,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:50:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:50:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:50:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:42,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 07:50:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:42,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:42,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:42,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:42,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:42,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:42,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:42,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:50:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:42,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:42,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:50:42,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:50:42,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:42,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:50:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:50:42,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833896800] [2020-09-25 07:50:42,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:42,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 07:50:42,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073881479] [2020-09-25 07:50:42,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:50:42,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:42,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:50:42,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:50:42,085 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 12 states. [2020-09-25 07:50:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:42,986 INFO L93 Difference]: Finished difference Result 260 states and 290 transitions. [2020-09-25 07:50:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:50:42,986 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-09-25 07:50:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:42,989 INFO L225 Difference]: With dead ends: 260 [2020-09-25 07:50:42,989 INFO L226 Difference]: Without dead ends: 174 [2020-09-25 07:50:42,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2020-09-25 07:50:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-25 07:50:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 136. [2020-09-25 07:50:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-25 07:50:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 151 transitions. [2020-09-25 07:50:43,013 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 151 transitions. Word has length 69 [2020-09-25 07:50:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:43,014 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 151 transitions. [2020-09-25 07:50:43,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:50:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 151 transitions. [2020-09-25 07:50:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-25 07:50:43,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:43,018 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:43,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:50:43,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1126254769, now seen corresponding path program 1 times [2020-09-25 07:50:43,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:43,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735428433] [2020-09-25 07:50:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:43,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:44,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:45,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:45,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:50:48,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:50:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:50:48,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:50:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:50:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:48,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:48,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:48,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:48,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:48,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:48,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:50:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:50:48,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:48,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-25 07:50:48,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:50:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:50:48,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 07:50:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:50:48,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:48,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:50:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-25 07:50:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:48,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:48,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:48,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:48,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 07:50:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:50:48,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:48,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:50:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:50:48,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735428433] [2020-09-25 07:50:48,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:48,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 07:50:48,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253104315] [2020-09-25 07:50:48,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:50:48,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:48,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:50:48,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:50:48,447 INFO L87 Difference]: Start difference. First operand 136 states and 151 transitions. Second operand 5 states. [2020-09-25 07:50:48,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:48,726 INFO L93 Difference]: Finished difference Result 263 states and 295 transitions. [2020-09-25 07:50:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:50:48,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-09-25 07:50:48,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:48,730 INFO L225 Difference]: With dead ends: 263 [2020-09-25 07:50:48,730 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 07:50:48,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 07:50:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2020-09-25 07:50:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-25 07:50:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 153 transitions. [2020-09-25 07:50:48,746 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 153 transitions. Word has length 77 [2020-09-25 07:50:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:48,746 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 153 transitions. [2020-09-25 07:50:48,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:50:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 153 transitions. [2020-09-25 07:50:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 07:50:48,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:48,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:48,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:50:48,750 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:48,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:48,751 INFO L82 PathProgramCache]: Analyzing trace with hash -598043661, now seen corresponding path program 1 times [2020-09-25 07:50:48,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:48,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368898493] [2020-09-25 07:50:48,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:49,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:52,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:53,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:53,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 07:50:53,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:50:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 07:50:53,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:53,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 07:50:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:50:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:53,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:53,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:53,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:53,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:50:53,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:53,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:53,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:53,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:53,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:53,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:50:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:53,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:53,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:53,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:53,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 07:50:53,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:53,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:50:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:50:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:54,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 07:50:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:54,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:54,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:50:54,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 07:50:54,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:54,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:50:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:54,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:50:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:54,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:54,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:54,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:54,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:54,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:54,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:54,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 07:50:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:54,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:54,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:50:54,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:54,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:54,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:54,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:50:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:54,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:50:54,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368898493] [2020-09-25 07:50:54,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:54,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:50:54,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280614173] [2020-09-25 07:50:54,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:50:54,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:54,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:50:54,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:50:54,146 INFO L87 Difference]: Start difference. First operand 138 states and 153 transitions. Second operand 9 states. [2020-09-25 07:50:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:54,926 INFO L93 Difference]: Finished difference Result 302 states and 331 transitions. [2020-09-25 07:50:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:50:54,927 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-25 07:50:54,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:54,929 INFO L225 Difference]: With dead ends: 302 [2020-09-25 07:50:54,929 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 07:50:54,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:50:54,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 07:50:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 156. [2020-09-25 07:50:54,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-25 07:50:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 170 transitions. [2020-09-25 07:50:54,955 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 170 transitions. Word has length 78 [2020-09-25 07:50:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:54,956 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 170 transitions. [2020-09-25 07:50:54,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:50:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 170 transitions. [2020-09-25 07:50:54,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 07:50:54,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:54,962 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:54,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:50:54,963 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:54,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:54,963 INFO L82 PathProgramCache]: Analyzing trace with hash -472966004, now seen corresponding path program 1 times [2020-09-25 07:50:54,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:54,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754930783] [2020-09-25 07:50:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:54,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:56,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:56,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:56,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:56,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:57,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:57,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:57,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:58,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 07:50:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-09-25 07:50:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:50:59,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:59,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:50:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 07:50:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:50:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:51:00,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:51:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:00,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:00,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:51:00,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:00,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:00,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:00,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:00,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:00,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:51:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:00,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:00,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:51:00,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:51:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-25 07:51:00,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:00,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:51:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:51:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:00,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 07:51:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:00,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:00,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:51:00,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:51:00,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 07:51:00,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:00,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:00,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:51:00,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:00,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:51:00,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:00,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 07:51:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:00,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:00,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:51:00,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:51:00,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 07:51:00,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:00,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:00,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:51:00,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:51:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:51:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:00,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 07:51:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:00,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:00,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:00,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:51:00,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:00,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:00,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:51:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:51:00,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754930783] [2020-09-25 07:51:00,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:51:00,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 07:51:00,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213241921] [2020-09-25 07:51:00,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 07:51:00,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:51:00,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 07:51:00,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:51:00,803 INFO L87 Difference]: Start difference. First operand 156 states and 170 transitions. Second operand 15 states. [2020-09-25 07:51:02,066 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-09-25 07:51:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:51:02,592 INFO L93 Difference]: Finished difference Result 313 states and 351 transitions. [2020-09-25 07:51:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 07:51:02,593 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-09-25 07:51:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:51:02,597 INFO L225 Difference]: With dead ends: 313 [2020-09-25 07:51:02,597 INFO L226 Difference]: Without dead ends: 229 [2020-09-25 07:51:02,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 07:51:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-09-25 07:51:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 177. [2020-09-25 07:51:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 07:51:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 196 transitions. [2020-09-25 07:51:02,637 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 196 transitions. Word has length 79 [2020-09-25 07:51:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:51:02,638 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 196 transitions. [2020-09-25 07:51:02,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 07:51:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 196 transitions. [2020-09-25 07:51:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 07:51:02,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:51:02,640 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:51:02,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:51:02,641 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:51:02,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:51:02,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1820928426, now seen corresponding path program 1 times [2020-09-25 07:51:02,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:51:02,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975161520] [2020-09-25 07:51:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:51:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:02,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:02,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:03,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:05,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:05,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:07,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:07,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 07:51:07,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:51:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:51:07,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:07,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 07:51:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 07:51:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 07:51:07,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:07,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:51:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:07,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:07,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:51:07,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:07,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:07,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:07,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:51:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:07,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:07,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:07,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:51:07,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:07,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:51:07,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:07,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:51:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:51:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:07,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 07:51:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:07,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:07,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:07,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:07,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:51:07,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 07:51:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:07,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:07,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:08,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:08,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:08,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:08,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:51:08,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:51:08,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 07:51:08,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:08,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:51:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:51:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-25 07:51:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:08,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:08,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:51:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:08,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:51:08,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975161520] [2020-09-25 07:51:08,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:51:08,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 07:51:08,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376847485] [2020-09-25 07:51:08,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 07:51:08,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:51:08,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 07:51:08,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:51:08,242 INFO L87 Difference]: Start difference. First operand 177 states and 196 transitions. Second operand 17 states. [2020-09-25 07:51:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:51:09,837 INFO L93 Difference]: Finished difference Result 377 states and 433 transitions. [2020-09-25 07:51:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 07:51:09,838 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 80 [2020-09-25 07:51:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:51:09,841 INFO L225 Difference]: With dead ends: 377 [2020-09-25 07:51:09,841 INFO L226 Difference]: Without dead ends: 285 [2020-09-25 07:51:09,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=1185, Unknown=0, NotChecked=0, Total=1406 [2020-09-25 07:51:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-25 07:51:09,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 188. [2020-09-25 07:51:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-25 07:51:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 209 transitions. [2020-09-25 07:51:09,870 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 209 transitions. Word has length 80 [2020-09-25 07:51:09,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:51:09,870 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 209 transitions. [2020-09-25 07:51:09,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 07:51:09,871 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 209 transitions. [2020-09-25 07:51:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 07:51:09,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:51:09,873 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:51:09,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:51:09,873 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:51:09,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:51:09,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1660389815, now seen corresponding path program 2 times [2020-09-25 07:51:09,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:51:09,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117594363] [2020-09-25 07:51:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:51:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:09,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:09,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:09,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:11,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:12,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:12,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:14,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:14,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:51:14,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:51:14,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:51:14,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:14,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:51:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 07:51:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 07:51:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:14,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:51:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:14,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:14,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:14,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:51:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:51:14,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:14,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:14,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:51:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:14,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:14,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:14,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:15,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:15,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:51:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:51:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:15,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 07:51:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:15,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:15,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:51:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:51:15,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:15,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:51:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:51:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:51:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:15,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 07:51:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:15,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:15,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:51:15,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:51:15,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:15,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:51:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:15,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 07:51:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:15,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:15,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:15,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:51:15,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:15,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:15,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:15,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:51:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:15,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 07:51:15,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117594363] [2020-09-25 07:51:15,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:51:15,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 07:51:15,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887012527] [2020-09-25 07:51:15,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:51:15,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:51:15,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:51:15,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:51:15,585 INFO L87 Difference]: Start difference. First operand 188 states and 209 transitions. Second operand 13 states. [2020-09-25 07:51:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:51:16,612 INFO L93 Difference]: Finished difference Result 334 states and 372 transitions. [2020-09-25 07:51:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:51:16,613 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-25 07:51:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:51:16,615 INFO L225 Difference]: With dead ends: 334 [2020-09-25 07:51:16,616 INFO L226 Difference]: Without dead ends: 228 [2020-09-25 07:51:16,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2020-09-25 07:51:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-25 07:51:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 178. [2020-09-25 07:51:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 07:51:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 197 transitions. [2020-09-25 07:51:16,627 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 197 transitions. Word has length 81 [2020-09-25 07:51:16,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:51:16,627 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 197 transitions. [2020-09-25 07:51:16,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:51:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 197 transitions. [2020-09-25 07:51:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 07:51:16,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:51:16,629 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:51:16,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:51:16,630 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:51:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:51:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1107353865, now seen corresponding path program 3 times [2020-09-25 07:51:16,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:51:16,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316476607] [2020-09-25 07:51:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:51:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:16,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:17,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:17,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:21,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:51:21,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:51:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:51:21,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:21,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 07:51:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 07:51:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 07:51:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:21,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:51:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:21,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:21,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:51:21,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:21,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:21,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:21,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:21,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:21,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:51:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:21,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:21,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:51:21,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:21,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 07:51:21,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:21,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:21,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:51:21,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:21,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:51:21,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:21,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 07:51:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:21,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:21,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:51:21,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:51:21,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 07:51:21,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:21,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:51:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:51:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:21,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 07:51:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:21,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:21,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:22,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:22,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:22,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:51:22,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:51:22,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 07:51:22,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:22,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:51:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:51:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:51:22,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:22,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 07:51:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:51:22,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:51:22,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:51:22,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:51:22,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:51:22,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:51:22,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:51:22,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:51:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:51:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 07:51:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:51:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:51:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:51:22,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316476607] [2020-09-25 07:51:22,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:51:22,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 07:51:22,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52934926] [2020-09-25 07:51:22,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 07:51:22,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:51:22,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 07:51:22,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:51:22,280 INFO L87 Difference]: Start difference. First operand 178 states and 197 transitions. Second operand 19 states.