/usr/bin/java -ea -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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 17:15:45,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 17:15:45,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 17:15:45,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 17:15:45,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 17:15:45,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 17:15:45,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 17:15:45,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 17:15:45,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 17:15:45,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 17:15:45,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 17:15:45,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 17:15:45,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 17:15:45,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 17:15:45,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 17:15:45,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 17:15:45,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 17:15:45,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 17:15:45,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 17:15:45,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 17:15:45,563 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 17:15:45,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 17:15:45,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 17:15:45,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 17:15:45,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 17:15:45,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 17:15:45,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-27 17:15:45,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-27 17:15:45,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-27 17:15:45,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-27 17:15:45,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-27 17:15:45,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-27 17:15:45,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-27 17:15:45,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-27 17:15:45,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 17:15:45,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 17:15:45,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 17:15:45,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 17:15:45,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 17:15:45,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 17:15:45,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 17:15:45,587 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 17:15:45,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 17:15:45,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 17:15:45,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 17:15:45,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 17:15:45,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 17:15:45,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 17:15:45,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 17:15:45,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 17:15:45,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 17:15:45,589 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 17:15:45,589 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 17:15:45,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 17:15:45,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 17:15:45,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 17:15:45,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 17:15:45,778 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 17:15:45,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-04-27 17:15:45,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c4f36fc/fd6cdfcc0e804d43b17f5226f6798724/FLAG6b1bcc0ae [2022-04-27 17:15:46,156 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 17:15:46,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-04-27 17:15:46,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c4f36fc/fd6cdfcc0e804d43b17f5226f6798724/FLAG6b1bcc0ae [2022-04-27 17:15:46,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c4f36fc/fd6cdfcc0e804d43b17f5226f6798724 [2022-04-27 17:15:46,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 17:15:46,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 17:15:46,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 17:15:46,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 17:15:46,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 17:15:46,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f8fe5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46, skipping insertion in model container [2022-04-27 17:15:46,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 17:15:46,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 17:15:46,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c[555,568] [2022-04-27 17:15:46,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 17:15:46,296 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 17:15:46,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c[555,568] [2022-04-27 17:15:46,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 17:15:46,346 INFO L208 MainTranslator]: Completed translation [2022-04-27 17:15:46,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46 WrapperNode [2022-04-27 17:15:46,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 17:15:46,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 17:15:46,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 17:15:46,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 17:15:46,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 17:15:46,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 17:15:46,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 17:15:46,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 17:15:46,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 17:15:46,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 17:15:46,410 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) [2022-04-27 17:15:46,416 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 [2022-04-27 17:15:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 17:15:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 17:15:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 17:15:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 17:15:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 17:15:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 17:15:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 17:15:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 17:15:46,474 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 17:15:46,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 17:15:46,555 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 17:15:46,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 17:15:46,560 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 17:15:46,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 05:15:46 BoogieIcfgContainer [2022-04-27 17:15:46,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 17:15:46,562 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 17:15:46,562 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 17:15:46,562 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 17:15:46,564 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 05:15:46" (1/1) ... [2022-04-27 17:15:46,566 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 17:15:46,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 05:15:46 BasicIcfg [2022-04-27 17:15:46,596 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 17:15:46,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 17:15:46,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 17:15:46,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 17:15:46,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 05:15:46" (1/4) ... [2022-04-27 17:15:46,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff13a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 05:15:46, skipping insertion in model container [2022-04-27 17:15:46,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 05:15:46" (2/4) ... [2022-04-27 17:15:46,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff13a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 05:15:46, skipping insertion in model container [2022-04-27 17:15:46,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 05:15:46" (3/4) ... [2022-04-27 17:15:46,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff13a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 05:15:46, skipping insertion in model container [2022-04-27 17:15:46,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 05:15:46" (4/4) ... [2022-04-27 17:15:46,601 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u.cJordan [2022-04-27 17:15:46,610 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 17:15:46,610 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 17:15:46,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 17:15:46,660 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1465b27c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c61597d [2022-04-27 17:15:46,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 17:15:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-27 17:15:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 17:15:46,678 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 17:15:46,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 17:15:46,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 17:15:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 17:15:46,688 INFO L85 PathProgramCache]: Analyzing trace with hash -628176271, now seen corresponding path program 1 times [2022-04-27 17:15:46,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 17:15:46,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046824088] [2022-04-27 17:15:46,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:15:46,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 17:15:46,772 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 17:15:46,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245344200] [2022-04-27 17:15:46,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:15:46,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 17:15:46,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 17:15:46,788 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) [2022-04-27 17:15:46,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 17:15:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:15:46,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 17:15:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 17:15:46,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 17:15:46,978 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-27 17:15:46,978 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} [59] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {25#true} is VALID [2022-04-27 17:15:46,978 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-27 17:15:46,979 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-27 17:15:46,979 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-27 17:15:46,981 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} [61] mainENTRY-->L32-2: Formula: (and (= v_main_~x~0_4 1) (= v_main_~z~0_3 |v_main_#t~nondet4_2|) (= v_main_~k~0_3 |v_main_#t~nondet5_2|) (= v_main_~c~0_4 1) (= v_main_~y~0_4 (mod v_main_~z~0_3 4294967296))) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_4, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_4, main_~z~0=v_main_~z~0_3, main_~k~0=v_main_~k~0_3} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0] {45#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} is VALID [2022-04-27 17:15:46,982 INFO L290 TraceCheckUtils]: 6: Hoare triple {45#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} [65] L32-2-->L33: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {45#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} is VALID [2022-04-27 17:15:46,987 INFO L272 TraceCheckUtils]: 7: Hoare triple {45#(and (= (mod main_~z~0 4294967296) main_~y~0) (= main_~x~0 1))} [67] L33-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* (- 1) v_main_~x~0_10) (* v_main_~x~0_10 (mod v_main_~z~0_7 4294967296)) 1) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {52#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 17:15:46,988 INFO L290 TraceCheckUtils]: 8: Hoare triple {52#(<= 1 |__VERIFIER_assert_#in~cond|)} [71] __VERIFIER_assertENTRY-->L16: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {56#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 17:15:46,988 INFO L290 TraceCheckUtils]: 9: Hoare triple {56#(<= 1 __VERIFIER_assert_~cond)} [73] L16-->L17: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {26#false} is VALID [2022-04-27 17:15:46,989 INFO L290 TraceCheckUtils]: 10: Hoare triple {26#false} [76] L17-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#false} is VALID [2022-04-27 17:15:46,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 17:15:46,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 17:15:46,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 17:15:46,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046824088] [2022-04-27 17:15:46,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 17:15:46,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245344200] [2022-04-27 17:15:46,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245344200] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 17:15:46,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 17:15:46,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-27 17:15:46,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608419877] [2022-04-27 17:15:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 17:15:46,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-27 17:15:46,999 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 17:15:47,001 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:15:47,013 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:15:47,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 17:15:47,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 17:15:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 17:15:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-27 17:15:47,030 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:15:47,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:15:47,141 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-27 17:15:47,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 17:15:47,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-27 17:15:47,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 17:15:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:15:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2022-04-27 17:15:47,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:15:47,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2022-04-27 17:15:47,149 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 38 transitions. [2022-04-27 17:15:47,182 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 17:15:47,188 INFO L225 Difference]: With dead ends: 30 [2022-04-27 17:15:47,188 INFO L226 Difference]: Without dead ends: 25 [2022-04-27 17:15:47,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-27 17:15:47,191 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 17:15:47,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 17:15:47,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-27 17:15:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-04-27 17:15:47,218 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 17:15:47,219 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 17:15:47,219 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 17:15:47,220 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 17:15:47,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:15:47,225 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-04-27 17:15:47,225 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-04-27 17:15:47,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:15:47,225 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:15:47,226 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states. [2022-04-27 17:15:47,226 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states. [2022-04-27 17:15:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 17:15:47,229 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-04-27 17:15:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-04-27 17:15:47,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 17:15:47,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 17:15:47,230 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 17:15:47,230 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 17:15:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 17:15:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-04-27 17:15:47,241 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2022-04-27 17:15:47,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 17:15:47,245 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-04-27 17:15:47,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 17:15:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-04-27 17:15:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-27 17:15:47,246 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 17:15:47,246 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 17:15:47,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-27 17:15:47,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-04-27 17:15:47,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 17:15:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 17:15:47,460 INFO L85 PathProgramCache]: Analyzing trace with hash -337724478, now seen corresponding path program 1 times [2022-04-27 17:15:47,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 17:15:47,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544268270] [2022-04-27 17:15:47,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:15:47,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 17:15:47,470 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 17:15:47,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621211298] [2022-04-27 17:15:47,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 17:15:47,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 17:15:47,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 17:15:47,472 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) [2022-04-27 17:15:47,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-27 17:15:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 17:15:47,501 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 17:15:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 17:15:47,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 17:15:47,520 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 17:15:47,521 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 17:15:47,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-27 17:15:47,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-04-27 17:15:47,746 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 17:15:47,748 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 17:15:47,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 05:15:47 BasicIcfg [2022-04-27 17:15:47,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 17:15:47,767 INFO L158 Benchmark]: Toolchain (without parser) took 1593.20ms. Allocated memory was 173.0MB in the beginning and 259.0MB in the end (delta: 86.0MB). Free memory was 115.9MB in the beginning and 165.9MB in the end (delta: -50.0MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2022-04-27 17:15:47,768 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 173.0MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 17:15:47,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.41ms. Allocated memory was 173.0MB in the beginning and 259.0MB in the end (delta: 86.0MB). Free memory was 115.6MB in the beginning and 232.5MB in the end (delta: -116.9MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. [2022-04-27 17:15:47,768 INFO L158 Benchmark]: Boogie Preprocessor took 33.22ms. Allocated memory is still 259.0MB. Free memory was 232.5MB in the beginning and 230.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 17:15:47,769 INFO L158 Benchmark]: RCFGBuilder took 180.43ms. Allocated memory is still 259.0MB. Free memory was 230.9MB in the beginning and 219.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 17:15:47,769 INFO L158 Benchmark]: IcfgTransformer took 34.85ms. Allocated memory is still 259.0MB. Free memory was 219.9MB in the beginning and 218.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 17:15:47,771 INFO L158 Benchmark]: TraceAbstraction took 1165.15ms. Allocated memory is still 259.0MB. Free memory was 217.8MB in the beginning and 165.9MB in the end (delta: 51.9MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-04-27 17:15:47,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 173.0MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 175.41ms. Allocated memory was 173.0MB in the beginning and 259.0MB in the end (delta: 86.0MB). Free memory was 115.6MB in the beginning and 232.5MB in the end (delta: -116.9MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.22ms. Allocated memory is still 259.0MB. Free memory was 232.5MB in the beginning and 230.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 180.43ms. Allocated memory is still 259.0MB. Free memory was 230.9MB in the beginning and 219.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 34.85ms. Allocated memory is still 259.0MB. Free memory was 219.9MB in the beginning and 218.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1165.15ms. Allocated memory is still 259.0MB. Free memory was 217.8MB in the beginning and 165.9MB in the end (delta: 51.9MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] k = __VERIFIER_nondet_uint() [L28] x = 1 [L29] y = z [L30] c = 1 VAL [c=1, k=0, x=1, y=0, z=0] [L32] COND TRUE 1 VAL [c=1, k=0, x=1, y=0, z=0] [L33] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L33] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, k=0, x=1, y=0, z=0] [L35] COND TRUE !(c < k) VAL [c=1, k=0, x=1, y=0, z=0] [L44] x = x * (z - 1) VAL [c=1, k=0, x=4294967295, y=0, z=0] [L46] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 1 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-27 17:15:47,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...