/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/array-fpi/indp5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:23:22,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:23:22,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:23:22,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 03:23:22,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 03:23:22,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 03:23:22,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 03:23:22,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 03:23:22,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 03:23:22,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 03:23:22,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 03:23:22,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 03:23:22,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:23:22,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:23:22,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:23:22,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:23:22,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:23:22,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:23:22,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:23:22,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:23:22,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:23:22,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:23:22,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:23:22,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:23:22,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 03:23:22,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 03:23:22,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 03:23:22,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 03:23:22,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 03:23:22,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 03:23:22,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 03:23:22,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 03:23:22,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 03:23:22,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 03:23:22,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 03:23:22,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 03:23:22,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 03:23:22,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 03:23:22,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:23:22,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:23:22,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:23:22,713 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 03:23:22,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:23:22,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:23:22,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:23:22,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:23:22,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:23:22,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:23:22,739 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:23:22,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:23:22,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:23:22,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:23:22,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:23:22,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:23:22,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:23:22,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:23:22,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:23:22,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:23:22,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:23:22,743 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:23:22,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:23:22,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:23:22,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:23:22,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:23:22,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:23:22,943 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:23:22,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5.c [2022-01-11 03:23:23,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e052512/9c38a246407b474ba458e1faa78bc2c9/FLAG7a7b95d38 [2022-01-11 03:23:23,343 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:23:23,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp5.c [2022-01-11 03:23:23,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e052512/9c38a246407b474ba458e1faa78bc2c9/FLAG7a7b95d38 [2022-01-11 03:23:23,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e052512/9c38a246407b474ba458e1faa78bc2c9 [2022-01-11 03:23:23,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:23:23,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:23:23,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:23:23,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:23:23,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:23:23,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:23,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5f6266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23, skipping insertion in model container [2022-01-11 03:23:23,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:23,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:23:23,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:23:23,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp5.c[588,601] [2022-01-11 03:23:23,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:23:23,961 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:23:23,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp5.c[588,601] [2022-01-11 03:23:23,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:23:23,984 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:23:23,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23 WrapperNode [2022-01-11 03:23:23,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:23:23,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:23:23,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:23:23,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:23:24,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,021 INFO L137 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2022-01-11 03:23:24,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:23:24,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:23:24,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:23:24,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:23:24,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:23:24,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:23:24,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:23:24,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:23:24,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (1/1) ... [2022-01-11 03:23:24,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:23:24,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:23:24,071 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 03:23:24,075 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 03:23:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:23:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:23:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 03:23:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-11 03:23:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 03:23:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:23:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:23:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-11 03:23:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 03:23:24,151 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:23:24,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:23:24,433 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:23:24,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:23:24,438 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-11 03:23:24,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:23:24 BoogieIcfgContainer [2022-01-11 03:23:24,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:23:24,439 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:23:24,439 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:23:24,440 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:23:24,443 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:23:24" (1/1) ... [2022-01-11 03:23:24,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:23:24 BasicIcfg [2022-01-11 03:23:24,563 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:23:24,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:23:24,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:23:24,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:23:24,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:23:23" (1/4) ... [2022-01-11 03:23:24,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477be1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:23:24, skipping insertion in model container [2022-01-11 03:23:24,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:23:23" (2/4) ... [2022-01-11 03:23:24,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477be1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:23:24, skipping insertion in model container [2022-01-11 03:23:24,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:23:24" (3/4) ... [2022-01-11 03:23:24,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477be1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:23:24, skipping insertion in model container [2022-01-11 03:23:24,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:23:24" (4/4) ... [2022-01-11 03:23:24,568 INFO L111 eAbstractionObserver]: Analyzing ICFG indp5.cTransformedIcfg [2022-01-11 03:23:24,571 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:23:24,571 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:23:24,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:23:24,627 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 03:23:24,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:23:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 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 03:23:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 03:23:24,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:23:24,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:23:24,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:23:24,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:23:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1063922026, now seen corresponding path program 1 times [2022-01-11 03:23:24,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:23:24,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580544239] [2022-01-11 03:23:24,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:23:24,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:23:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:23:24,815 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 03:23:24,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:23:24,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580544239] [2022-01-11 03:23:24,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580544239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:23:24,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:23:24,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:23:24,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504207996] [2022-01-11 03:23:24,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:23:24,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 03:23:24,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:23:24,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 03:23:24,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:23:24,850 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 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) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 03:23:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:23:24,862 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-01-11 03:23:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 03:23:24,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-01-11 03:23:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:23:24,870 INFO L225 Difference]: With dead ends: 50 [2022-01-11 03:23:24,870 INFO L226 Difference]: Without dead ends: 23 [2022-01-11 03:23:24,872 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 03:23:24,876 INFO L933 BasicCegarLoop]: 32 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, 32 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 03:23:24,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:23:24,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-11 03:23:24,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-11 03:23:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 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 03:23:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-11 03:23:24,901 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2022-01-11 03:23:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:23:24,902 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-11 03:23:24,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 03:23:24,903 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-11 03:23:24,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 03:23:24,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:23:24,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:23:24,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:23:24,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:23:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:23:24,906 INFO L85 PathProgramCache]: Analyzing trace with hash 134528049, now seen corresponding path program 1 times [2022-01-11 03:23:24,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:23:24,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040931531] [2022-01-11 03:23:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:23:24,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:23:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:23:25,368 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 03:23:25,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:23:25,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040931531] [2022-01-11 03:23:25,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040931531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:23:25,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:23:25,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 03:23:25,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782976845] [2022-01-11 03:23:25,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:23:25,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 03:23:25,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:23:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 03:23:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:23:25,370 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 03:23:27,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-11 03:23:29,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:23:31,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:23:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:23:31,891 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2022-01-11 03:23:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:23:31,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2022-01-11 03:23:31,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:23:31,892 INFO L225 Difference]: With dead ends: 40 [2022-01-11 03:23:31,892 INFO L226 Difference]: Without dead ends: 24 [2022-01-11 03:23:31,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 03:23:31,893 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-11 03:23:31,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 6.5s Time] [2022-01-11 03:23:31,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-01-11 03:23:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-01-11 03:23:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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 03:23:31,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-01-11 03:23:31,898 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2022-01-11 03:23:31,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:23:31,898 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-01-11 03:23:31,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 03:23:31,898 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-01-11 03:23:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 03:23:31,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:23:31,899 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 03:23:31,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:23:31,899 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:23:31,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:23:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash 398238099, now seen corresponding path program 1 times [2022-01-11 03:23:31,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:23:31,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038281911] [2022-01-11 03:23:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:23:31,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:23:31,919 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 03:23:31,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437686045] [2022-01-11 03:23:31,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:23:31,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:23:31,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:23:31,951 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 03:23:31,953 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 03:23:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:23:32,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 03:23:32,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 03:23:32,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:23:32,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 03:23:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:23:54,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:23:54,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038281911] [2022-01-11 03:23:54,959 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 03:23:54,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437686045] [2022-01-11 03:23:54,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437686045] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 03:23:54,960 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 03:23:54,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-11 03:23:54,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266687092] [2022-01-11 03:23:54,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 03:23:54,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 03:23:54,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:23:54,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 03:23:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-11 03:23:54,961 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 03:23:57,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-11 03:23:59,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-11 03:24:01,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-11 03:24:03,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-11 03:24:05,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:24:07,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:24:09,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:24:11,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:24:14,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:24:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:24:14,218 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-01-11 03:24:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 03:24:14,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 03:24:14,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:24:14,222 INFO L225 Difference]: With dead ends: 46 [2022-01-11 03:24:14,222 INFO L226 Difference]: Without dead ends: 33 [2022-01-11 03:24:14,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-11 03:24:14,223 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 22 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:24:14,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 60 Invalid, 9 Unknown, 13 Unchecked, 19.0s Time] [2022-01-11 03:24:14,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-11 03:24:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-01-11 03:24:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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 03:24:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-01-11 03:24:14,227 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2022-01-11 03:24:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:24:14,228 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-01-11 03:24:14,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 03:24:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-01-11 03:24:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 03:24:14,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:24:14,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:24:14,262 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 03:24:14,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:24:14,429 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:24:14,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:24:14,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1303521189, now seen corresponding path program 1 times [2022-01-11 03:24:14,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:24:14,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319318507] [2022-01-11 03:24:14,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:24:14,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:24:14,449 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 03:24:14,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555206098] [2022-01-11 03:24:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:24:14,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:24:14,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:24:14,457 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 03:24:14,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process