/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/hard-u_valuebound100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:36:57,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:36:57,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:36:57,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:36:57,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:36:57,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:36:57,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:36:57,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:36:57,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:36:57,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:36:57,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:36:57,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:36:57,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:36:57,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:36:57,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:36:57,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:36:57,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:36:57,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:36:57,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:36:57,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:36:57,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:36:57,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:36:57,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:36:57,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:36:57,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:36:57,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:36:57,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:36:57,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:36:57,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:36:57,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 02:36:57,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:36:57,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:36:57,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:36:57,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:36:57,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:36:57,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:36:57,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:36:57,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:36:57,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:36:57,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:36:57,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:36:57,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:36:57,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:36:57,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:36:57,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:36:57,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:36:57,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:36:57,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:36:57,867 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:36:57,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:36:57,868 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:36:57,869 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:36:57,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:36:57,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:36:57,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:36:57,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:36:57,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:36:57,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:36:57,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:36:57,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:36:57,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:36:57,871 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:36:57,871 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:36:58,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:36:58,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:36:58,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:36:58,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:36:58,115 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:36:58,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/hard-u_valuebound100.c [2022-01-11 02:36:58,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10214ab75/1df8c9e040f7490c96a197cf51c01217/FLAG60b3b972e [2022-01-11 02:36:58,536 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:36:58,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-u_valuebound100.c [2022-01-11 02:36:58,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10214ab75/1df8c9e040f7490c96a197cf51c01217/FLAG60b3b972e [2022-01-11 02:36:58,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10214ab75/1df8c9e040f7490c96a197cf51c01217 [2022-01-11 02:36:58,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:36:58,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:36:58,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:36:58,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:36:58,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:36:58,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bf249f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58, skipping insertion in model container [2022-01-11 02:36:58,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:36:58,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:36:58,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-u_valuebound100.c[537,550] [2022-01-11 02:36:58,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:36:58,739 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:36:58,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-u_valuebound100.c[537,550] [2022-01-11 02:36:58,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:36:58,776 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:36:58,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58 WrapperNode [2022-01-11 02:36:58,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:36:58,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:36:58,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:36:58,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:36:58,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,802 INFO L137 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 99 [2022-01-11 02:36:58,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:36:58,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:36:58,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:36:58,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:36:58,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:36:58,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:36:58,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:36:58,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:36:58,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (1/1) ... [2022-01-11 02:36:58,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:36:58,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:36:58,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 02:36:58,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 02:36:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:36:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:36:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:36:58,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:36:58,921 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:36:58,922 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:36:59,154 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:36:59,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:36:59,158 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 02:36:59,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:36:59 BoogieIcfgContainer [2022-01-11 02:36:59,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:36:59,160 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:36:59,160 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:36:59,161 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:36:59,164 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:36:59" (1/1) ... [2022-01-11 02:36:59,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:36:59 BasicIcfg [2022-01-11 02:36:59,223 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:36:59,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:36:59,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:36:59,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:36:59,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:36:58" (1/4) ... [2022-01-11 02:36:59,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628de17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:36:59, skipping insertion in model container [2022-01-11 02:36:59,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:36:58" (2/4) ... [2022-01-11 02:36:59,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628de17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:36:59, skipping insertion in model container [2022-01-11 02:36:59,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:36:59" (3/4) ... [2022-01-11 02:36:59,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628de17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:36:59, skipping insertion in model container [2022-01-11 02:36:59,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:36:59" (4/4) ... [2022-01-11 02:36:59,228 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-u_valuebound100.cTransformedIcfg [2022-01-11 02:36:59,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:36:59,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-11 02:36:59,276 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:36:59,280 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 02:36:59,280 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-11 02:36:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 44 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:36:59,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:36:59,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:36:59,306 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:36:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:36:59,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1753801254, now seen corresponding path program 1 times [2022-01-11 02:36:59,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:36:59,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821671457] [2022-01-11 02:36:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:59,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:36:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:36:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:36:59,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:36:59,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821671457] [2022-01-11 02:36:59,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821671457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:36:59,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:36:59,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:36:59,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656827181] [2022-01-11 02:36:59,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:36:59,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:36:59,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:36:59,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:36:59,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:36:59,490 INFO L87 Difference]: Start difference. First operand has 45 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 44 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:36:59,510 INFO L93 Difference]: Finished difference Result 87 states and 118 transitions. [2022-01-11 02:36:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:36:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-11 02:36:59,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:36:59,517 INFO L225 Difference]: With dead ends: 87 [2022-01-11 02:36:59,517 INFO L226 Difference]: Without dead ends: 41 [2022-01-11 02:36:59,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:36:59,523 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:36:59,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:36:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-11 02:36:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-01-11 02:36:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-01-11 02:36:59,553 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 11 [2022-01-11 02:36:59,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:36:59,553 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-01-11 02:36:59,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-01-11 02:36:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:36:59,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:36:59,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:36:59,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:36:59,556 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:36:59,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:36:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1622138781, now seen corresponding path program 1 times [2022-01-11 02:36:59,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:36:59,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928514418] [2022-01-11 02:36:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:59,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:36:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:36:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:36:59,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:36:59,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928514418] [2022-01-11 02:36:59,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928514418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:36:59,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:36:59,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:36:59,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149018607] [2022-01-11 02:36:59,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:36:59,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:36:59,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:36:59,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:36:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:36:59,655 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:36:59,743 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2022-01-11 02:36:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:36:59,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-11 02:36:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:36:59,744 INFO L225 Difference]: With dead ends: 61 [2022-01-11 02:36:59,744 INFO L226 Difference]: Without dead ends: 59 [2022-01-11 02:36:59,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:36:59,746 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:36:59,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 73 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:36:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-01-11 02:36:59,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2022-01-11 02:36:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-01-11 02:36:59,752 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2022-01-11 02:36:59,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:36:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-01-11 02:36:59,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-01-11 02:36:59,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 02:36:59,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:36:59,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:36:59,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:36:59,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:36:59,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:36:59,754 INFO L85 PathProgramCache]: Analyzing trace with hash -197722619, now seen corresponding path program 1 times [2022-01-11 02:36:59,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:36:59,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836881678] [2022-01-11 02:36:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:59,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:36:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:36:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:36:59,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:36:59,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836881678] [2022-01-11 02:36:59,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836881678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:36:59,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:36:59,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:36:59,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559985543] [2022-01-11 02:36:59,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:36:59,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:36:59,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:36:59,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:36:59,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:36:59,810 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:36:59,890 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-01-11 02:36:59,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:36:59,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-11 02:36:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:36:59,893 INFO L225 Difference]: With dead ends: 59 [2022-01-11 02:36:59,893 INFO L226 Difference]: Without dead ends: 57 [2022-01-11 02:36:59,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:36:59,900 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:36:59,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 67 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:36:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-11 02:36:59,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 37. [2022-01-11 02:36:59,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-01-11 02:36:59,909 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 13 [2022-01-11 02:36:59,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:36:59,909 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-01-11 02:36:59,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:59,909 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-01-11 02:36:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 02:36:59,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:36:59,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:36:59,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 02:36:59,910 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:36:59,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:36:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1032838067, now seen corresponding path program 1 times [2022-01-11 02:36:59,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:36:59,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821287824] [2022-01-11 02:36:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:59,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:36:59,935 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:36:59,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686257132] [2022-01-11 02:36:59,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:59,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:36:59,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:36:59,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:36:59,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:36:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:36:59,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-11 02:36:59,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:37:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:37:00,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:37:00,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:37:00,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821287824] [2022-01-11 02:37:00,265 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:37:00,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686257132] [2022-01-11 02:37:00,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686257132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:37:00,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:37:00,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 02:37:00,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310158752] [2022-01-11 02:37:00,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:37:00,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 02:37:00,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:37:00,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 02:37:00,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-11 02:37:00,269 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:00,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:37:00,467 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2022-01-11 02:37:00,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 02:37:00,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-11 02:37:00,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:37:00,468 INFO L225 Difference]: With dead ends: 80 [2022-01-11 02:37:00,468 INFO L226 Difference]: Without dead ends: 57 [2022-01-11 02:37:00,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-01-11 02:37:00,469 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 182 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:37:00,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 60 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:37:00,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-11 02:37:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2022-01-11 02:37:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.1875) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:00,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-01-11 02:37:00,475 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 15 [2022-01-11 02:37:00,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:37:00,475 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-01-11 02:37:00,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:00,476 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-01-11 02:37:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 02:37:00,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:37:00,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:37:00,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 02:37:00,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:00,685 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:37:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:37:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash 204111243, now seen corresponding path program 1 times [2022-01-11 02:37:00,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:37:00,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463834188] [2022-01-11 02:37:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:00,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:37:00,701 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:37:00,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407222395] [2022-01-11 02:37:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:00,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:37:00,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:37:00,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:37:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:37:00,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-11 02:37:00,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:37:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:37:01,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:37:01,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:37:01,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463834188] [2022-01-11 02:37:01,130 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:37:01,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407222395] [2022-01-11 02:37:01,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407222395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:37:01,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:37:01,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 02:37:01,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376337052] [2022-01-11 02:37:01,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:37:01,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 02:37:01,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:37:01,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 02:37:01,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-11 02:37:01,131 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:37:01,402 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2022-01-11 02:37:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 02:37:01,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-11 02:37:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:37:01,405 INFO L225 Difference]: With dead ends: 57 [2022-01-11 02:37:01,406 INFO L226 Difference]: Without dead ends: 45 [2022-01-11 02:37:01,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-01-11 02:37:01,407 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:37:01,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 73 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:37:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-11 02:37:01,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-01-11 02:37:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.175) internal successors, (47), 44 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-01-11 02:37:01,422 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 19 [2022-01-11 02:37:01,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:37:01,423 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-01-11 02:37:01,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-01-11 02:37:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 02:37:01,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:37:01,424 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:37:01,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 02:37:01,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:01,646 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:37:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:37:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1774741771, now seen corresponding path program 1 times [2022-01-11 02:37:01,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:37:01,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752185568] [2022-01-11 02:37:01,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:01,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:37:01,656 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:37:01,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365072289] [2022-01-11 02:37:01,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:01,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:01,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:37:01,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:37:01,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 02:37:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:37:01,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-11 02:37:01,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:37:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:37:02,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:37:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:37:02,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:37:02,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752185568] [2022-01-11 02:37:02,205 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:37:02,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365072289] [2022-01-11 02:37:02,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365072289] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:37:02,206 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:37:02,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2022-01-11 02:37:02,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814769754] [2022-01-11 02:37:02,206 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:37:02,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-11 02:37:02,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:37:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-11 02:37:02,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-01-11 02:37:02,207 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:04,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:37:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:37:05,857 INFO L93 Difference]: Finished difference Result 106 states and 112 transitions. [2022-01-11 02:37:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 02:37:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-11 02:37:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:37:05,858 INFO L225 Difference]: With dead ends: 106 [2022-01-11 02:37:05,858 INFO L226 Difference]: Without dead ends: 94 [2022-01-11 02:37:05,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2022-01-11 02:37:05,859 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 282 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-11 02:37:05,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 105 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 119 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-01-11 02:37:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-01-11 02:37:05,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 62. [2022-01-11 02:37:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-01-11 02:37:05,872 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 23 [2022-01-11 02:37:05,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:37:05,872 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-01-11 02:37:05,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-01-11 02:37:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 02:37:05,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:37:05,874 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:37:05,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-11 02:37:06,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:06,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:37:06,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:37:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash -198681549, now seen corresponding path program 1 times [2022-01-11 02:37:06,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:37:06,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940876042] [2022-01-11 02:37:06,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:06,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:37:06,106 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:37:06,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294209239] [2022-01-11 02:37:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:06,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:06,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:37:06,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:37:06,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-11 02:37:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:37:06,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-11 02:37:06,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:37:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:37:06,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:37:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:37:09,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:37:09,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940876042] [2022-01-11 02:37:09,167 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:37:09,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294209239] [2022-01-11 02:37:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294209239] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-11 02:37:09,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-11 02:37:09,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-01-11 02:37:09,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470558124] [2022-01-11 02:37:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:37:09,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 02:37:09,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:37:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 02:37:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-11 02:37:09,168 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:37:10,115 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2022-01-11 02:37:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 02:37:10,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-11 02:37:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:37:10,118 INFO L225 Difference]: With dead ends: 103 [2022-01-11 02:37:10,120 INFO L226 Difference]: Without dead ends: 101 [2022-01-11 02:37:10,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-01-11 02:37:10,121 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 83 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 02:37:10,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 172 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 50 Invalid, 0 Unknown, 61 Unchecked, 0.5s Time] [2022-01-11 02:37:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-01-11 02:37:10,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 73. [2022-01-11 02:37:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.173913043478261) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2022-01-11 02:37:10,127 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 27 [2022-01-11 02:37:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:37:10,128 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2022-01-11 02:37:10,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:37:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2022-01-11 02:37:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 02:37:10,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:37:10,128 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:37:10,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-11 02:37:10,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:10,332 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:37:10,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:37:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash 245684806, now seen corresponding path program 1 times [2022-01-11 02:37:10,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:37:10,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652880130] [2022-01-11 02:37:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:10,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:37:10,346 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:37:10,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871841542] [2022-01-11 02:37:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:37:10,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:37:10,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:37:10,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:37:10,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-11 02:37:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:37:10,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-11 02:37:10,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:37:34,646 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 2) 4294967296))) (and (= |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| (div .cse0 2)) (< |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| .cse0) (<= 1 |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int|) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| 100) (= |c_ULTIMATE.start_ULTIMATE.start_main_~p~0#1Int| 1) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|))) is different from false [2022-01-11 02:37:39,037 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 2) 4294967296))) (and (<= (div (+ (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|) (- 4294967296)) (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|) 1) 4294967296)) (= (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| (mod (* 4294967295 (div .cse0 2)) 4294967296)) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (<= 1 |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int|) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| 100) (< |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 4294967296) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int|) (< |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| .cse0) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int|))) is different from false [2022-01-11 02:38:09,781 WARN L228 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)