/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:37:23,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:37:23,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:37:23,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:37:23,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:37:23,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:37:23,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:37:23,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:37:23,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:37:23,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:37:23,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:37:23,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:37:23,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:37:23,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:37:23,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:37:23,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:37:23,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:37:23,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:37:23,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:37:23,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:37:23,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:37:23,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:37:23,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:37:23,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:37:23,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:37:23,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:37:23,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:37:23,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:37:23,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:37:23,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:37:23,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:37:23,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:37:23,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:37:23,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:37:23,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:37:23,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:37:23,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:37:23,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:37:23,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:37:23,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:37:23,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:37:23,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 14:37:23,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:37:23,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:37:23,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:37:23,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:37:23,761 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:37:23,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:37:23,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:37:23,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:37:23,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:37:23,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:37:23,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:37:23,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:37:23,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:37:23,764 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:37:23,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:37:23,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:37:23,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:37:23,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:37:23,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:37:23,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:37:23,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:37:23,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:37:23,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:37:23,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:37:23,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:37:23,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:37:23,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:37:23,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:37:23,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:37:23,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:37:24,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:37:24,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:37:24,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:37:24,303 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:37:24,304 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:37:24,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i [2020-10-28 14:37:24,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c79690343/2bfe7a43a6144c8f83fffe3fc79a88f0/FLAGf9275aca0 [2020-10-28 14:37:25,024 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:37:25,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i [2020-10-28 14:37:25,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c79690343/2bfe7a43a6144c8f83fffe3fc79a88f0/FLAGf9275aca0 [2020-10-28 14:37:25,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c79690343/2bfe7a43a6144c8f83fffe3fc79a88f0 [2020-10-28 14:37:25,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:37:25,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:37:25,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:37:25,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:37:25,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:37:25,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:37:25" (1/1) ... [2020-10-28 14:37:25,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38693bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:25, skipping insertion in model container [2020-10-28 14:37:25,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:37:25" (1/1) ... [2020-10-28 14:37:25,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:37:25,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:37:25,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:37:25,896 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:37:25,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:37:26,040 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:37:26,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26 WrapperNode [2020-10-28 14:37:26,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:37:26,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:37:26,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:37:26,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:37:26,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... [2020-10-28 14:37:26,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:37:26,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:37:26,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:37:26,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:37:26,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:37:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:37:26,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:37:26,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:37:26,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-28 14:37:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-28 14:37:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-28 14:37:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2020-10-28 14:37:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_node [2020-10-28 14:37:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sll [2020-10-28 14:37:26,352 INFO L138 BoogieDeclarations]: Found implementation of procedure init_back_link [2020-10-28 14:37:26,353 INFO L138 BoogieDeclarations]: Found implementation of procedure reverse_dll [2020-10-28 14:37:26,353 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_fw_link [2020-10-28 14:37:26,354 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_next [2020-10-28 14:37:26,354 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_prev [2020-10-28 14:37:26,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:37:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:37:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:37:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 14:37:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 14:37:26,355 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-28 14:37:26,356 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-28 14:37:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-28 14:37:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-28 14:37:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-28 14:37:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-28 14:37:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-28 14:37:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-28 14:37:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-28 14:37:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-28 14:37:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-28 14:37:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-28 14:37:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-28 14:37:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-28 14:37:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-28 14:37:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-28 14:37:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-28 14:37:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-28 14:37:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-28 14:37:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-28 14:37:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-28 14:37:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-28 14:37:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-28 14:37:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-28 14:37:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-28 14:37:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-28 14:37:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-28 14:37:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-28 14:37:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-28 14:37:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-28 14:37:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-28 14:37:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-28 14:37:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-28 14:37:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-28 14:37:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-28 14:37:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 14:37:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 14:37:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-28 14:37:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 14:37:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-28 14:37:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-28 14:37:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-28 14:37:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-28 14:37:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-28 14:37:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-28 14:37:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-28 14:37:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-28 14:37:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2020-10-28 14:37:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 14:37:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 14:37:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure chain_node [2020-10-28 14:37:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 14:37:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure create_sll [2020-10-28 14:37:26,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 14:37:26,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:37:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure init_back_link [2020-10-28 14:37:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure reverse_dll [2020-10-28 14:37:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure remove_fw_link [2020-10-28 14:37:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_next [2020-10-28 14:37:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_prev [2020-10-28 14:37:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:37:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:37:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:37:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:37:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:37:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:37:27,197 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:37:27,198 INFO L298 CfgBuilder]: Removed 33 assume(true) statements. [2020-10-28 14:37:27,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:37:27 BoogieIcfgContainer [2020-10-28 14:37:27,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:37:27,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:37:27,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:37:27,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:37:27,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:37:25" (1/3) ... [2020-10-28 14:37:27,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2537a60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:37:27, skipping insertion in model container [2020-10-28 14:37:27,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:37:26" (2/3) ... [2020-10-28 14:37:27,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2537a60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:37:27, skipping insertion in model container [2020-10-28 14:37:27,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:37:27" (3/3) ... [2020-10-28 14:37:27,210 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-2.i [2020-10-28 14:37:27,223 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:37:27,229 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:37:27,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:37:27,273 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:37:27,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:37:27,274 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:37:27,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:37:27,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:37:27,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:37:27,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:37:27,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:37:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-10-28 14:37:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 14:37:27,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:37:27,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:37:27,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:37:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:37:27,313 INFO L82 PathProgramCache]: Analyzing trace with hash -14860730, now seen corresponding path program 1 times [2020-10-28 14:37:27,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:37:27,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115802032] [2020-10-28 14:37:27,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:37:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:27,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:27,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:27,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:27,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:27,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 14:37:27,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:37:27,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-28 14:37:27,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:27,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:27,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:37:27,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 14:37:27,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:37:27,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:37:28,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:37:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:28,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:28,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:37:28,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 14:37:28,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:28,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:37:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:37:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:28,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:37:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:28,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:28,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:28,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:28,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:28,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 14:37:28,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:37:28,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 14:37:28,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:28,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:37:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:37:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:37:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:37:28,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115802032] [2020-10-28 14:37:28,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:37:28,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:37:28,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265434388] [2020-10-28 14:37:28,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:37:28,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:37:28,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:37:28,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:37:28,208 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 4 states. [2020-10-28 14:37:28,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:37:28,654 INFO L93 Difference]: Finished difference Result 241 states and 393 transitions. [2020-10-28 14:37:28,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 14:37:28,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-28 14:37:28,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:37:28,669 INFO L225 Difference]: With dead ends: 241 [2020-10-28 14:37:28,669 INFO L226 Difference]: Without dead ends: 120 [2020-10-28 14:37:28,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:37:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-28 14:37:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 110. [2020-10-28 14:37:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-28 14:37:28,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 130 transitions. [2020-10-28 14:37:28,742 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 130 transitions. Word has length 26 [2020-10-28 14:37:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:37:28,743 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 130 transitions. [2020-10-28 14:37:28,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:37:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 130 transitions. [2020-10-28 14:37:28,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 14:37:28,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:37:28,746 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:37:28,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:37:28,747 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:37:28,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:37:28,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1549082311, now seen corresponding path program 1 times [2020-10-28 14:37:28,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:37:28,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569216789] [2020-10-28 14:37:28,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:37:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:28,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:29,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:33,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:33,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:33,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 14:37:33,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 14:37:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-28 14:37:33,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:33,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 14:37:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:37:33,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 14:37:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 14:37:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:37:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:34,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:34,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:34,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:37:34,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 14:37:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:34,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:37:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:37:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:34,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:37:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:34,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:38,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 14:37:38,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:37:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4469 [2020-10-28 14:37:38,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:38,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 14:37:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 14:37:38,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:39,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:39,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:39,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:39,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:37:39,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:39,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 14:37:39,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:39,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 14:37:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:39,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 14:37:39,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:39,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:37:39,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 14:37:39,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:39,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:39,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 14:37:39,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:37:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:39,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 14:37:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:39,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:39,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:39,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:37:39,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:37:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 14:37:39,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:39,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:37:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:37:39,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:40,116 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-28 14:37:40,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:40,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:40,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:40,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:37:40,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:40,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 14:37:40,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:40,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:40,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:37:40,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:40,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:37:40,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:40,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 14:37:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:40,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:40,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:40,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:37:40,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 14:37:40,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:40,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:37:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:37:40,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:40,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:40,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:37:40,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 14:37:40,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:40,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:37:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:37:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-28 14:37:40,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569216789] [2020-10-28 14:37:40,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:37:40,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 14:37:40,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075293585] [2020-10-28 14:37:40,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 14:37:40,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:37:40,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 14:37:40,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2020-10-28 14:37:40,840 INFO L87 Difference]: Start difference. First operand 110 states and 130 transitions. Second operand 26 states. [2020-10-28 14:37:41,659 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-28 14:37:41,964 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-28 14:37:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:37:44,896 INFO L93 Difference]: Finished difference Result 164 states and 202 transitions. [2020-10-28 14:37:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-28 14:37:44,897 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 62 [2020-10-28 14:37:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:37:44,900 INFO L225 Difference]: With dead ends: 164 [2020-10-28 14:37:44,901 INFO L226 Difference]: Without dead ends: 159 [2020-10-28 14:37:44,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=179, Invalid=1543, Unknown=0, NotChecked=0, Total=1722 [2020-10-28 14:37:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-28 14:37:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 122. [2020-10-28 14:37:44,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-28 14:37:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 144 transitions. [2020-10-28 14:37:44,934 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 144 transitions. Word has length 62 [2020-10-28 14:37:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:37:44,934 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 144 transitions. [2020-10-28 14:37:44,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 14:37:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 144 transitions. [2020-10-28 14:37:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 14:37:44,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:37:44,937 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:37:44,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:37:44,937 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:37:44,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:37:44,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1598377699, now seen corresponding path program 1 times [2020-10-28 14:37:44,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:37:44,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581126081] [2020-10-28 14:37:44,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:37:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:45,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:46,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:46,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:47,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:49,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:50,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:50,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 14:37:50,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 14:37:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-28 14:37:50,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:50,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:50,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 14:37:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:37:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 14:37:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:37:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:50,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:50,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:50,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:37:50,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:50,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 14:37:50,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:50,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:37:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:37:50,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:50,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:37:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:51,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:53,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:53,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 14:37:53,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:37:53,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3446 [2020-10-28 14:37:53,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:53,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 14:37:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 14:37:53,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:54,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:54,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:54,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:54,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:37:54,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:54,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 14:37:54,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:54,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 14:37:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:54,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 14:37:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:54,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:54,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:54,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:37:54,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:54,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 14:37:54,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:54,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 14:37:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:37:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:37:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:54,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 14:37:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:54,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:54,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:54,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:37:54,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 14:37:54,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:54,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:37:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:37:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:54,973 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-28 14:37:54,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:55,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:55,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:37:55,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 14:37:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:55,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:37:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:37:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 14:37:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:55,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:55,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:55,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:37:55,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:55,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 14:37:55,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:55,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:37:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:37:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:37:55,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:37:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:37:55,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:37:55,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:37:55,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:37:55,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 14:37:55,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:37:55,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:37:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:37:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:37:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:37:55,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:37:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-28 14:37:55,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581126081] [2020-10-28 14:37:55,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:37:55,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-28 14:37:55,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671914480] [2020-10-28 14:37:55,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-28 14:37:55,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:37:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-28 14:37:55,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-10-28 14:37:55,571 INFO L87 Difference]: Start difference. First operand 122 states and 144 transitions. Second operand 24 states. [2020-10-28 14:37:56,655 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:37:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:37:59,218 INFO L93 Difference]: Finished difference Result 161 states and 197 transitions. [2020-10-28 14:37:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 14:37:59,220 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 64 [2020-10-28 14:37:59,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:37:59,225 INFO L225 Difference]: With dead ends: 161 [2020-10-28 14:37:59,225 INFO L226 Difference]: Without dead ends: 156 [2020-10-28 14:37:59,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=154, Invalid=1328, Unknown=0, NotChecked=0, Total=1482 [2020-10-28 14:37:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-28 14:37:59,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 122. [2020-10-28 14:37:59,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-28 14:37:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-10-28 14:37:59,287 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 64 [2020-10-28 14:37:59,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:37:59,288 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-10-28 14:37:59,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-28 14:37:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-10-28 14:37:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 14:37:59,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:37:59,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:37:59,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 14:37:59,291 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:37:59,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:37:59,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1076023089, now seen corresponding path program 1 times [2020-10-28 14:37:59,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:37:59,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131538517] [2020-10-28 14:37:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:37:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:37:59,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:00,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:04,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:04,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 14:38:04,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:38:04,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-28 14:38:04,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:04,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:04,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 14:38:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:38:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 14:38:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 14:38:04,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:38:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:04,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:04,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:38:04,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:04,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:38:04,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:04,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:38:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:04,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:38:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:04,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:38:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:04,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:05,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:08,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4215 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 14:38:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:09,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:09,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:09,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:09,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 14:38:09,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:09,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 14:38:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 14:38:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:09,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:09,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:09,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:09,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 14:38:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:09,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 14:38:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:38:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 14:38:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:09,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:09,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:09,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:09,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-28 14:38:09,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:09,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:09,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 14:38:09,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:09,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:38:09,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:09,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:09,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:09,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:09,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:09,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:09,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 14:38:09,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:09,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:38:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:38:09,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:38:10,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 14:38:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:10,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:10,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:10,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:38:10,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:15,835 WARN L193 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 236 DAG size of output: 205 [2020-10-28 14:38:16,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:16,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:16,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:38:16,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:16,975 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-10-28 14:38:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 14:38:17,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131538517] [2020-10-28 14:38:17,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:38:17,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-28 14:38:17,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293824032] [2020-10-28 14:38:17,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-28 14:38:17,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:38:17,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-28 14:38:17,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2020-10-28 14:38:17,073 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 31 states. [2020-10-28 14:38:19,050 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 210 [2020-10-28 14:38:20,803 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 215 [2020-10-28 14:38:21,295 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-28 14:38:21,490 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-10-28 14:38:23,204 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 227 [2020-10-28 14:38:25,203 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2020-10-28 14:38:26,138 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2020-10-28 14:38:30,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:38:30,730 INFO L93 Difference]: Finished difference Result 202 states and 249 transitions. [2020-10-28 14:38:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 14:38:30,731 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 68 [2020-10-28 14:38:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:38:30,735 INFO L225 Difference]: With dead ends: 202 [2020-10-28 14:38:30,735 INFO L226 Difference]: Without dead ends: 197 [2020-10-28 14:38:30,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=208, Invalid=2144, Unknown=0, NotChecked=0, Total=2352 [2020-10-28 14:38:30,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-28 14:38:30,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 146. [2020-10-28 14:38:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-28 14:38:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2020-10-28 14:38:30,767 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 68 [2020-10-28 14:38:30,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:38:30,768 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2020-10-28 14:38:30,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-28 14:38:30,768 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2020-10-28 14:38:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 14:38:30,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:38:30,770 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:38:30,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 14:38:30,770 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:38:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:38:30,771 INFO L82 PathProgramCache]: Analyzing trace with hash 2047681946, now seen corresponding path program 1 times [2020-10-28 14:38:30,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:38:30,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597121240] [2020-10-28 14:38:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:38:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:33,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:35,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:35,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 14:38:35,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 14:38:35,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 14:38:35,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:35,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 14:38:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:38:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 14:38:35,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:38:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:35,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:35,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:35,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:38:35,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 14:38:35,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:35,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:38:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:38:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:36,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:38:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:36,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:36,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:36,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 14:38:36,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:36,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-28 14:38:36,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:36,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:36,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 14:38:36,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:36,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 14:38:36,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:37,256 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-10-28 14:38:37,445 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-10-28 14:38:37,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:37,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:37,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:37,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:37,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 14:38:37,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:37,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:38:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 14:38:37,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:37,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:37,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:37,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:37,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:37,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 14:38:37,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:37,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:38:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:37,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:38:37,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 14:38:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:37,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:37,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:37,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 14:38:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:37,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 14:38:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 14:38:37,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:37,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:37,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:37,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:37,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:37,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 14:38:37,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:37,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 14:38:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 14:38:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:38:37,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 14:38:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:37,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:38,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:38,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:38,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:38:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:38,451 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-10-28 14:38:40,465 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-10-28 14:38:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:40,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:40,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:40,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:40,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 14:38:40,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:40,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:38:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:38:40,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:40,820 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-10-28 14:38:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 14:38:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:40,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:40,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:40,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 14:38:40,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:40,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:38:40,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:40,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:38:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 14:38:40,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 14:38:40,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597121240] [2020-10-28 14:38:40,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:38:40,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-28 14:38:40,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523632065] [2020-10-28 14:38:40,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-28 14:38:40,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:38:40,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-28 14:38:40,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-28 14:38:40,883 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 21 states. [2020-10-28 14:38:41,736 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-10-28 14:38:43,618 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 120 DAG size of output: 104 [2020-10-28 14:38:44,838 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2020-10-28 14:38:45,592 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-28 14:38:49,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:38:49,078 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2020-10-28 14:38:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 14:38:49,080 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-10-28 14:38:49,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:38:49,083 INFO L225 Difference]: With dead ends: 190 [2020-10-28 14:38:49,083 INFO L226 Difference]: Without dead ends: 185 [2020-10-28 14:38:49,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=96, Invalid=896, Unknown=0, NotChecked=0, Total=992 [2020-10-28 14:38:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-28 14:38:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2020-10-28 14:38:49,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-28 14:38:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 175 transitions. [2020-10-28 14:38:49,119 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 175 transitions. Word has length 72 [2020-10-28 14:38:49,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:38:49,119 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 175 transitions. [2020-10-28 14:38:49,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-28 14:38:49,120 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 175 transitions. [2020-10-28 14:38:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 14:38:49,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:38:49,122 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:38:49,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 14:38:49,122 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:38:49,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:38:49,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1994885571, now seen corresponding path program 1 times [2020-10-28 14:38:49,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:38:49,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248518077] [2020-10-28 14:38:49,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:38:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:49,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:50,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:52,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:54,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:54,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:54,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 14:38:54,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 14:38:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5141 [2020-10-28 14:38:54,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:54,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-28 14:38:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 14:38:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 14:38:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:54,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:38:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:54,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:38:54,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:54,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:38:54,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:54,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:38:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:56,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1404 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 14:38:56,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:57,734 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2020-10-28 14:38:58,680 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2020-10-28 14:38:58,922 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-28 14:38:58,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:58,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 14:38:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:58,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:38:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:58,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:58,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:58,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:38:58,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:58,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 14:38:58,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:58,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:58,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:38:58,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:38:58,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:38:58,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:38:58,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 14:38:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:38:58,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:38:59,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:38:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:39:04,202 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 167 DAG size of output: 134 [2020-10-28 14:39:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 14:39:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:04,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:04,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:04,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 14:39:04,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:39:04,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 14:39:04,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:04,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 14:39:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:39:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:39:04,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:39:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 14:39:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:39:04,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:39:04,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:39:04,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 14:39:04,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:39:04,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 14:39:04,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:39:04,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:39:04,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 14:39:04,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 14:39:04,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 14:39:04,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:39:12,496 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81