/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_BITWISE.epf -i ../../../trunk/examples/svcomp/array-fpi/sqm.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 10:00:34,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 10:00:34,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 10:00:34,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 10:00:34,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 10:00:34,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 10:00:34,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 10:00:34,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 10:00:34,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 10:00:34,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 10:00:34,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 10:00:34,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 10:00:34,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 10:00:34,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 10:00:34,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 10:00:34,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 10:00:34,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 10:00:34,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 10:00:34,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 10:00:34,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 10:00:34,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 10:00:34,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 10:00:34,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 10:00:34,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 10:00:34,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 10:00:34,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 10:00:34,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 10:00:34,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 10:00:34,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 10:00:34,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 10:00:34,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 10:00:34,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 10:00:34,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 10:00:34,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 10:00:34,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 10:00:34,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 10:00:34,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 10:00:34,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 10:00:34,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 10:00:34,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 10:00:34,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 10:00:34,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 10:00:34,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 10:00:34,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 10:00:34,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 10:00:34,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 10:00:34,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 10:00:34,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 10:00:34,530 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 10:00:34,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 10:00:34,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 10:00:34,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 10:00:34,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 10:00:34,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 10:00:34,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 10:00:34,531 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 10:00:34,531 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 10:00:34,532 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 10:00:34,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 10:00:34,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 10:00:34,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 10:00:34,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 10:00:34,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 10:00:34,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 10:00:34,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 10:00:34,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 10:00:34,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 10:00:34,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 10:00:34,535 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 10:00:34,536 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 10:00:34,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 10:00:34,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 10:00:34,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 10:00:34,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 10:00:34,704 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 10:00:34,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sqm.c [2022-01-10 10:00:34,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1509678fc/269688f5e73b46a88c58dd67c422ff31/FLAG71aaa7880 [2022-01-10 10:00:35,065 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 10:00:35,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sqm.c [2022-01-10 10:00:35,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1509678fc/269688f5e73b46a88c58dd67c422ff31/FLAG71aaa7880 [2022-01-10 10:00:35,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1509678fc/269688f5e73b46a88c58dd67c422ff31 [2022-01-10 10:00:35,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 10:00:35,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 10:00:35,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 10:00:35,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 10:00:35,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 10:00:35,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d0dd68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35, skipping insertion in model container [2022-01-10 10:00:35,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 10:00:35,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 10:00:35,670 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/sqm.c[586,599] [2022-01-10 10:00:35,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:00:35,705 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 10:00:35,716 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/sqm.c[586,599] [2022-01-10 10:00:35,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:00:35,743 INFO L208 MainTranslator]: Completed translation [2022-01-10 10:00:35,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35 WrapperNode [2022-01-10 10:00:35,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 10:00:35,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 10:00:35,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 10:00:35,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 10:00:35,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,780 INFO L137 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2022-01-10 10:00:35,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 10:00:35,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 10:00:35,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 10:00:35,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 10:00:35,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 10:00:35,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 10:00:35,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 10:00:35,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 10:00:35,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (1/1) ... [2022-01-10 10:00:35,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 10:00:35,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:00:35,858 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) [2022-01-10 10:00:35,883 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 [2022-01-10 10:00:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 10:00:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 10:00:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 10:00:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 10:00:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 10:00:35,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 10:00:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 10:00:35,967 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 10:00:35,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 10:00:36,213 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 10:00:36,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 10:00:36,218 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 10:00:36,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:00:36 BoogieIcfgContainer [2022-01-10 10:00:36,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 10:00:36,220 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 10:00:36,220 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 10:00:36,221 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 10:00:36,226 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:00:36" (1/1) ... [2022-01-10 10:00:36,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:00:36 BasicIcfg [2022-01-10 10:00:36,348 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 10:00:36,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 10:00:36,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 10:00:36,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 10:00:36,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 10:00:35" (1/4) ... [2022-01-10 10:00:36,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270a30e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:00:36, skipping insertion in model container [2022-01-10 10:00:36,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:00:35" (2/4) ... [2022-01-10 10:00:36,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270a30e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:00:36, skipping insertion in model container [2022-01-10 10:00:36,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:00:36" (3/4) ... [2022-01-10 10:00:36,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270a30e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 10:00:36, skipping insertion in model container [2022-01-10 10:00:36,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:00:36" (4/4) ... [2022-01-10 10:00:36,353 INFO L111 eAbstractionObserver]: Analyzing ICFG sqm.cTransformedIcfg [2022-01-10 10:00:36,357 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 10:00:36,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 10:00:36,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 10:00:36,392 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 [2022-01-10 10:00:36,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 10:00:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-01-10 10:00:36,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 10:00:36,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:00:36,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:00:36,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:00:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:00:36,413 INFO L85 PathProgramCache]: Analyzing trace with hash 751161390, now seen corresponding path program 1 times [2022-01-10 10:00:36,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:00:36,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205521169] [2022-01-10 10:00:36,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:36,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:00:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:00:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:00:36,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:00:36,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205521169] [2022-01-10 10:00:36,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205521169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:00:36,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:00:36,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 10:00:36,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202031615] [2022-01-10 10:00:36,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:00:36,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 10:00:36,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:00:36,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 10:00:36,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 10:00:36,576 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-01-10 10:00:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:00:36,586 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-01-10 10:00:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 10:00:36,587 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-01-10 10:00:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:00:36,592 INFO L225 Difference]: With dead ends: 38 [2022-01-10 10:00:36,592 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 10:00:36,594 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 [2022-01-10 10:00:36,598 INFO L933 BasicCegarLoop]: 24 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, 24 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 [2022-01-10 10:00:36,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 10:00:36,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 10:00:36,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 10:00:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 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) [2022-01-10 10:00:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-01-10 10:00:36,621 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-01-10 10:00:36,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:00:36,622 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-01-10 10:00:36,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-01-10 10:00:36,623 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-01-10 10:00:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 10:00:36,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:00:36,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:00:36,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 10:00:36,625 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:00:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:00:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1055369552, now seen corresponding path program 1 times [2022-01-10 10:00:36,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:00:36,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344719801] [2022-01-10 10:00:36,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:36,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:00:36,706 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 10:00:36,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470320043] [2022-01-10 10:00:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:36,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:00:36,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:00:36,709 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) [2022-01-10 10:00:36,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 10:00:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:00:36,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-10 10:00:36,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 10:00:36,961 INFO L353 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-01-10 10:00:36,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 81 [2022-01-10 10:00:36,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:36,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:36,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-01-10 10:00:37,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:37,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:37,008 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-01-10 10:00:37,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-01-10 10:00:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:37,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-01-10 10:00:37,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:37,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-01-10 10:00:37,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:37,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 10:00:37,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:00:37,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 10:00:37,501 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 10:00:37,502 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 69 [2022-01-10 10:00:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:00:37,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 10:00:37,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:00:37,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344719801] [2022-01-10 10:00:37,545 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 10:00:37,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470320043] [2022-01-10 10:00:37,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470320043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:00:37,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:00:37,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:00:37,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13203102] [2022-01-10 10:00:37,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:00:37,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:00:37,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:00:37,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:00:37,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:00:37,552 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-01-10 10:00:39,627 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 [] [2022-01-10 10:00:41,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:00:43,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:00:46,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:00:48,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:00:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:00:48,862 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-01-10 10:00:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:00:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-01-10 10:00:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:00:48,864 INFO L225 Difference]: With dead ends: 34 [2022-01-10 10:00:48,864 INFO L226 Difference]: Without dead ends: 32 [2022-01-10 10:00:48,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:00:48,865 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-01-10 10:00:48,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 11.3s Time] [2022-01-10 10:00:48,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-01-10 10:00:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2022-01-10 10:00:48,869 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) [2022-01-10 10:00:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-10 10:00:48,873 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-01-10 10:00:48,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:00:48,873 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-10 10:00:48,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-01-10 10:00:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-10 10:00:48,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 10:00:48,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:00:48,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:00:48,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 10:00:49,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:00:49,078 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:00:49,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:00:49,079 INFO L85 PathProgramCache]: Analyzing trace with hash 312554478, now seen corresponding path program 1 times [2022-01-10 10:00:49,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:00:49,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995954297] [2022-01-10 10:00:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:49,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:00:49,129 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 10:00:49,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162262398] [2022-01-10 10:00:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:49,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:00:49,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:00:49,131 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) [2022-01-10 10:00:49,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 10:00:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:00:49,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 10:00:49,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 10:00:49,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:00:49,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 10:00:49,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:00:49,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995954297] [2022-01-10 10:00:49,290 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 10:00:49,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162262398] [2022-01-10 10:00:49,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162262398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:00:49,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:00:49,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:00:49,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055498529] [2022-01-10 10:00:49,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:00:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:00:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:00:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:00:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:00:49,291 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-01-10 10:00:51,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:00:53,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:00:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:00:53,608 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2022-01-10 10:00:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:00:53,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2022-01-10 10:00:53,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:00:53,610 INFO L225 Difference]: With dead ends: 40 [2022-01-10 10:00:53,610 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 10:00:53,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:00:53,611 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-10 10:00:53,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 35 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-01-10 10:00:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 10:00:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2022-01-10 10:00:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-01-10 10:00:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-01-10 10:00:53,615 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2022-01-10 10:00:53,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:00:53,615 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-01-10 10:00:53,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-01-10 10:00:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-01-10 10:00:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 10:00:53,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:00:53,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:00:53,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 10:00:53,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 10:00:53,824 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:00:53,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:00:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash -953919346, now seen corresponding path program 1 times [2022-01-10 10:00:53,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:00:53,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993959073] [2022-01-10 10:00:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:53,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:00:53,868 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 10:00:53,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461630196] [2022-01-10 10:00:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:00:53,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:00:53,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:00:53,874 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) [2022-01-10 10:00:53,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 10:00:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:00:53,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 10:00:53,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 10:00:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:00:54,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 10:01:01,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:01:01,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:01:01,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993959073] [2022-01-10 10:01:01,370 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 10:01:01,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461630196] [2022-01-10 10:01:01,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461630196] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 10:01:01,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 10:01:01,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 10:01:01,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816063124] [2022-01-10 10:01:01,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 10:01:01,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:01:01,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:01:01,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:01:01,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:01:01,371 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-01-10 10:01:03,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:05,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:01:05,667 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-01-10 10:01:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 10:01:05,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 14 [2022-01-10 10:01:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:01:05,668 INFO L225 Difference]: With dead ends: 36 [2022-01-10 10:01:05,669 INFO L226 Difference]: Without dead ends: 29 [2022-01-10 10:01:05,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:01:05,669 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-10 10:01:05,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 2 Unknown, 16 Unchecked, 4.3s Time] [2022-01-10 10:01:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-10 10:01:05,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-01-10 10:01:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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) [2022-01-10 10:01:05,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-01-10 10:01:05,673 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2022-01-10 10:01:05,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:01:05,673 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-01-10 10:01:05,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-01-10 10:01:05,673 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-01-10 10:01:05,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 10:01:05,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:01:05,673 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:01:05,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-10 10:01:05,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:01:05,874 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:01:05,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:01:05,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1017934828, now seen corresponding path program 1 times [2022-01-10 10:01:05,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:01:05,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143534856] [2022-01-10 10:01:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:01:05,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:01:05,916 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 10:01:05,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329794767] [2022-01-10 10:01:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:01:05,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:01:05,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:01:05,936 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) [2022-01-10 10:01:05,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 10:01:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:01:06,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 10:01:06,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 10:01:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:01:06,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 10:01:08,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:01:08,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:01:08,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143534856] [2022-01-10 10:01:08,871 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 10:01:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329794767] [2022-01-10 10:01:08,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329794767] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 10:01:08,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 10:01:08,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-01-10 10:01:08,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196786804] [2022-01-10 10:01:08,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 10:01:08,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 10:01:08,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:01:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 10:01:08,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-10 10:01:08,875 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-01-10 10:01:10,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:14,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:16,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:18,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:20,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:22,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:01:25,022 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 [] [2022-01-10 10:01:25,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:01:25,135 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-01-10 10:01:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:01:25,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 16 [2022-01-10 10:01:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:01:25,136 INFO L225 Difference]: With dead ends: 36 [2022-01-10 10:01:25,136 INFO L226 Difference]: Without dead ends: 22 [2022-01-10 10:01:25,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-10 10:01:25,137 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:01:25,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 46 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 7 Unknown, 12 Unchecked, 16.2s Time] [2022-01-10 10:01:25,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-10 10:01:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-01-10 10:01:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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) [2022-01-10 10:01:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-01-10 10:01:25,153 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 16 [2022-01-10 10:01:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:01:25,153 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-01-10 10:01:25,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-01-10 10:01:25,153 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-01-10 10:01:25,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 10:01:25,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:01:25,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:01:25,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 10:01:25,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:01:25,360 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:01:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:01:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash -978045364, now seen corresponding path program 1 times [2022-01-10 10:01:25,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:01:25,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316063962] [2022-01-10 10:01:25,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:01:25,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:01:25,391 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 10:01:25,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286816918] [2022-01-10 10:01:25,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:01:25,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 10:01:25,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:01:25,400 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) [2022-01-10 10:01:25,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 10:01:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:01:25,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-10 10:01:25,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 10:01:25,907 INFO L353 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2022-01-10 10:01:25,908 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 81 [2022-01-10 10:01:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:25,922 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-01-10 10:01:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:25,934 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-01-10 10:01:25,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:25,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-01-10 10:01:25,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:25,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-10 10:01:26,027 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 10:01:26,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-01-10 10:01:26,067 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-01-10 10:01:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,162 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 10:01:26,163 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2022-01-10 10:01:26,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 10:01:26,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 10:01:26,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 10:01:26,253 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 10:01:26,253 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 79 [2022-01-10 10:01:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:01:26,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 10:01:32,873 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int) (v_ArrVal_194 Int) (v_ArrVal_193 Int) (|aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int)) (let ((.cse3 (let ((.cse5 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 8) 18446744073709551616))) (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ .cse5 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616) v_ArrVal_194) (mod (+ .cse5 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 4) 18446744073709551616) v_ArrVal_193))) (.cse4 (mod (+ 18446744073709551608 (* 8 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) 18446744073709551616))) (let ((.cse2 (select .cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse4) 18446744073709551616)))) (let ((.cse0 (+ (* (select .cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse4 4) 18446744073709551616)) 4294967296) .cse2)) (.cse1 (+ (* 18446744073709551616 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|))) (or (> 0 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) (= (mod (* |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) 18446744073709551616) .cse0) (< .cse0 0) (>= |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| 18446744073709551616) (not (<= .cse1 1)) (not (<= 1 .cse1)) (<= 4294967296 .cse2)))))) is different from false [2022-01-10 10:01:38,558 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int) (v_ArrVal_194 Int) (v_ArrVal_193 Int) (|aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int)) (let ((.cse3 (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ 8 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616) v_ArrVal_194) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 12) 18446744073709551616) v_ArrVal_193)) (.cse4 (mod (+ 18446744073709551608 (* 8 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) 18446744073709551616))) (let ((.cse0 (select .cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse4) 18446744073709551616)))) (let ((.cse2 (+ (* 18446744073709551616 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) (.cse1 (+ (* (select .cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse4 4) 18446744073709551616)) 4294967296) .cse0))) (or (> 0 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) (<= 4294967296 .cse0) (< .cse1 0) (>= |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| 18446744073709551616) (not (<= .cse2 1)) (not (<= 1 .cse2)) (= .cse1 (mod (* |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) 18446744073709551616))))))) is different from false [2022-01-10 10:01:46,793 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_191 (Array Int Int)) (|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int) (v_ArrVal_194 Int) (v_ArrVal_193 Int) (|aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int)) (let ((.cse3 (store (store (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1.baseInt| v_ArrVal_191) |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ 8 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616) v_ArrVal_194) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 12) 18446744073709551616) v_ArrVal_193)) (.cse4 (mod (+ 18446744073709551608 (* 8 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) 18446744073709551616))) (let ((.cse1 (select .cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse4) 18446744073709551616)))) (let ((.cse0 (+ .cse1 (* (select .cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse4 4) 18446744073709551616)) 4294967296))) (.cse2 (+ (* 18446744073709551616 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|))) (or (> 0 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) (= .cse0 (mod (* |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) 18446744073709551616)) (< .cse0 0) (<= 4294967296 .cse1) (>= |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| 18446744073709551616) (not (<= .cse2 1)) (not (<= 1 .cse2))))))) is different from false [2022-01-10 10:01:46,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 10:01:46,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 244 [2022-01-10 10:01:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-01-10 10:01:46,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:01:46,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316063962] [2022-01-10 10:01:46,885 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 10:01:46,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286816918] [2022-01-10 10:01:46,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286816918] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 10:01:46,885 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 10:01:46,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2022-01-10 10:01:46,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240088825] [2022-01-10 10:01:46,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 10:01:46,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 10:01:46,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:01:46,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 10:01:46,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=68, Unknown=3, NotChecked=54, Total=156 [2022-01-10 10:01:46,887 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2022-01-10 10:01:48,900 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|))) (and (<= |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 0) (not (= |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1.baseInt| 1)) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) (= (mod (div 1 4294967296) 4294967296) (select .cse0 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 4) 18446744073709551616))) (forall ((v_ArrVal_191 (Array Int Int)) (|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int) (v_ArrVal_194 Int) (v_ArrVal_193 Int) (|aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int)) (let ((.cse4 (store (store (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1.baseInt| v_ArrVal_191) |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ 8 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616) v_ArrVal_194) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 12) 18446744073709551616) v_ArrVal_193)) (.cse5 (mod (+ 18446744073709551608 (* 8 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) 18446744073709551616))) (let ((.cse2 (select .cse4 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse5) 18446744073709551616)))) (let ((.cse1 (+ .cse2 (* (select .cse4 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse5 4) 18446744073709551616)) 4294967296))) (.cse3 (+ (* 18446744073709551616 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|))) (or (> 0 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) (= .cse1 (mod (* |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) 18446744073709551616)) (< .cse1 0) (<= 4294967296 .cse2) (>= |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| 18446744073709551616) (not (<= .cse3 1)) (not (<= 1 .cse3))))))) (= (select .cse0 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) (mod (div 1 1) 4294967296)) (= (select |c_#validInt| 1) 1) (not (= |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt| |c_ULTIMATE.start_ULTIMATE.start_main_~b~0#1.baseInt|)))) is different from false [2022-01-10 10:01:50,911 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|))) (and (<= |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 0) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) (= (mod (div 1 4294967296) 4294967296) (select .cse0 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 4) 18446744073709551616))) (forall ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int) (v_ArrVal_194 Int) (v_ArrVal_193 Int) (|aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| Int)) (let ((.cse4 (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ 8 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616) v_ArrVal_194) (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| 12) 18446744073709551616) v_ArrVal_193)) (.cse5 (mod (+ 18446744073709551608 (* 8 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) 18446744073709551616))) (let ((.cse1 (select .cse4 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse5) 18446744073709551616)))) (let ((.cse3 (+ (* 18446744073709551616 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|)) (.cse2 (+ (* (select .cse4 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| .cse5 4) 18446744073709551616)) 4294967296) .cse1))) (or (> 0 |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) (<= 4294967296 .cse1) (< .cse2 0) (>= |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| 18446744073709551616) (not (<= .cse3 1)) (not (<= 1 .cse3)) (= .cse2 (mod (* |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84| |aux_mod_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10_84|) 18446744073709551616))))))) (= (select .cse0 |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) (mod (div 1 1) 4294967296)))) is different from false