/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 00:38:36,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 00:38:36,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 00:38:36,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 00:38:36,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 00:38:36,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 00:38:36,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 00:38:36,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 00:38:36,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 00:38:36,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 00:38:36,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 00:38:36,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 00:38:36,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 00:38:36,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 00:38:36,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 00:38:36,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 00:38:36,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 00:38:36,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 00:38:36,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 00:38:36,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 00:38:36,397 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 00:38:36,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 00:38:36,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 00:38:36,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 00:38:36,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 00:38:36,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 00:38:36,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 00:38:36,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 00:38:36,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 00:38:36,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 00:38:36,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 00:38:36,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 00:38:36,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 00:38:36,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 00:38:36,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 00:38:36,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 00:38:36,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 00:38:36,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 00:38:36,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 00:38:36,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 00:38:36,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 00:38:36,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 00:38:36,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 00:38:36,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 00:38:36,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 00:38:36,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 00:38:36,440 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 00:38:36,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 00:38:36,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 00:38:36,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 00:38:36,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 00:38:36,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 00:38:36,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 00:38:36,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 00:38:36,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 00:38:36,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 00:38:36,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 00:38:36,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 00:38:36,443 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 00:38:36,443 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 00:38:36,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 00:38:36,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 00:38:36,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 00:38:36,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 00:38:36,688 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 00:38:36,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2022-04-05 00:38:36,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2212e1296/fc95341ed3cc48a08a2c77ddef814d11/FLAG3ddab5574 [2022-04-05 00:38:37,117 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 00:38:37,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2022-04-05 00:38:37,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2212e1296/fc95341ed3cc48a08a2c77ddef814d11/FLAG3ddab5574 [2022-04-05 00:38:37,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2212e1296/fc95341ed3cc48a08a2c77ddef814d11 [2022-04-05 00:38:37,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 00:38:37,136 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 00:38:37,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 00:38:37,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 00:38:37,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 00:38:37,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124091dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37, skipping insertion in model container [2022-04-05 00:38:37,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 00:38:37,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 00:38:37,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2022-04-05 00:38:37,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 00:38:37,312 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 00:38:37,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2022-04-05 00:38:37,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 00:38:37,358 INFO L208 MainTranslator]: Completed translation [2022-04-05 00:38:37,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37 WrapperNode [2022-04-05 00:38:37,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 00:38:37,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 00:38:37,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 00:38:37,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 00:38:37,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 00:38:37,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 00:38:37,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 00:38:37,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 00:38:37,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (1/1) ... [2022-04-05 00:38:37,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 00:38:37,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 00:38:37,431 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) [2022-04-05 00:38:37,457 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 [2022-04-05 00:38:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 00:38:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 00:38:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 00:38:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 00:38:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 00:38:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 00:38:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 00:38:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 00:38:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 00:38:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-05 00:38:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 00:38:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 00:38:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 00:38:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 00:38:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 00:38:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 00:38:37,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 00:38:37,553 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 00:38:37,554 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 00:38:46,359 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 00:38:46,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 00:38:46,363 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-05 00:38:46,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:38:46 BoogieIcfgContainer [2022-04-05 00:38:46,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 00:38:46,365 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 00:38:46,365 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 00:38:46,366 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 00:38:46,371 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:38:46" (1/1) ... [2022-04-05 00:38:46,373 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 00:38:46,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 12:38:46 BasicIcfg [2022-04-05 00:38:46,386 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 00:38:46,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 00:38:46,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 00:38:46,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 00:38:46,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 12:38:37" (1/4) ... [2022-04-05 00:38:46,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d91d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:38:46, skipping insertion in model container [2022-04-05 00:38:46,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 12:38:37" (2/4) ... [2022-04-05 00:38:46,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d91d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 12:38:46, skipping insertion in model container [2022-04-05 00:38:46,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 12:38:46" (3/4) ... [2022-04-05 00:38:46,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d91d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:38:46, skipping insertion in model container [2022-04-05 00:38:46,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 12:38:46" (4/4) ... [2022-04-05 00:38:46,392 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.cJordan [2022-04-05 00:38:46,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 00:38:46,399 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 00:38:46,430 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 00:38:46,435 INFO L340 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 [2022-04-05 00:38:46,435 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 00:38:46,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-05 00:38:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-05 00:38:46,451 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:38:46,452 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:38:46,452 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:38:46,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:38:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1219544613, now seen corresponding path program 1 times [2022-04-05 00:38:46,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:38:46,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43784281] [2022-04-05 00:38:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:38:46,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:38:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:38:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 00:38:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:38:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 00:38:46,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:38:46,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43784281] [2022-04-05 00:38:46,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43784281] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 00:38:46,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 00:38:46,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 00:38:46,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024361334] [2022-04-05 00:38:46,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 00:38:47,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 00:38:47,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:38:47,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 00:38:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 00:38:47,027 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:38:49,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:38:51,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:38:53,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:38:55,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:38:57,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:00,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:02,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:04,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:06,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:08,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:11,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:13,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:15,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:39:15,512 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2022-04-05 00:39:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 00:39:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-05 00:39:15,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:39:15,520 INFO L225 Difference]: With dead ends: 63 [2022-04-05 00:39:15,520 INFO L226 Difference]: Without dead ends: 45 [2022-04-05 00:39:15,521 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-04-05 00:39:15,524 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-04-05 00:39:15,525 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 106 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 13 Unknown, 0 Unchecked, 28.3s Time] [2022-04-05 00:39:15,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-04-05 00:39:15,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2022-04-05 00:39:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:39:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-04-05 00:39:15,558 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 15 [2022-04-05 00:39:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:39:15,558 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-04-05 00:39:15,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:39:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-04-05 00:39:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-05 00:39:15,559 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:39:15,560 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:39:15,560 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 00:39:15,560 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:39:15,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:39:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash -791971888, now seen corresponding path program 1 times [2022-04-05 00:39:15,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:39:15,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648666306] [2022-04-05 00:39:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:39:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:39:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:39:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 00:39:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:39:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 00:39:15,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:39:15,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648666306] [2022-04-05 00:39:15,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648666306] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 00:39:15,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 00:39:15,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 00:39:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046304093] [2022-04-05 00:39:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 00:39:15,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 00:39:15,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:39:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 00:39:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 00:39:15,908 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:39:18,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:20,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:22,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:24,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:26,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:28,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:30,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:33,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:35,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:37,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:39,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:41,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:43,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:46,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:48,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:50,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:39:50,558 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2022-04-05 00:39:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 00:39:50,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-04-05 00:39:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:39:50,560 INFO L225 Difference]: With dead ends: 42 [2022-04-05 00:39:50,560 INFO L226 Difference]: Without dead ends: 40 [2022-04-05 00:39:50,560 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-05 00:39:50,561 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2022-04-05 00:39:50,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 80 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 16 Unknown, 0 Unchecked, 34.5s Time] [2022-04-05 00:39:50,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-04-05 00:39:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2022-04-05 00:39:50,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:39:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-04-05 00:39:50,566 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 16 [2022-04-05 00:39:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:39:50,567 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-04-05 00:39:50,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:39:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-04-05 00:39:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-05 00:39:50,568 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:39:50,568 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:39:50,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 00:39:50,568 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:39:50,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:39:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash 364986418, now seen corresponding path program 1 times [2022-04-05 00:39:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:39:50,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780192736] [2022-04-05 00:39:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:39:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:39:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:39:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 00:39:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:39:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 00:39:50,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:39:50,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780192736] [2022-04-05 00:39:50,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780192736] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 00:39:50,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 00:39:50,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 00:39:50,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43174744] [2022-04-05 00:39:50,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 00:39:50,780 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 00:39:50,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:39:50,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 00:39:50,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 00:39:50,780 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:39:52,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:54,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:57,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:39:59,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:01,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:03,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:05,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:08,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:10,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:12,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:14,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:40:14,655 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-04-05 00:40:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 00:40:14,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-04-05 00:40:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:40:14,656 INFO L225 Difference]: With dead ends: 47 [2022-04-05 00:40:14,656 INFO L226 Difference]: Without dead ends: 45 [2022-04-05 00:40:14,656 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 00:40:14,657 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-04-05 00:40:14,658 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 10 Unknown, 0 Unchecked, 23.8s Time] [2022-04-05 00:40:14,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-04-05 00:40:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2022-04-05 00:40:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:40:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-04-05 00:40:14,665 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2022-04-05 00:40:14,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:40:14,665 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-04-05 00:40:14,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:40:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-04-05 00:40:14,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-05 00:40:14,666 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 00:40:14,666 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 00:40:14,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 00:40:14,666 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 00:40:14,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 00:40:14,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1083849817, now seen corresponding path program 1 times [2022-04-05 00:40:14,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 00:40:14,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008321540] [2022-04-05 00:40:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 00:40:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 00:40:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:40:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 00:40:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 00:40:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-05 00:40:14,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 00:40:14,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008321540] [2022-04-05 00:40:14,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008321540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 00:40:14,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 00:40:14,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 00:40:14,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369624730] [2022-04-05 00:40:14,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 00:40:14,903 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 00:40:14,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 00:40:14,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 00:40:14,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 00:40:14,904 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:40:16,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:19,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:21,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:23,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:25,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:27,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:29,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:32,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:34,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:36,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:38,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-04-05 00:40:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 00:40:38,730 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-04-05 00:40:38,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 00:40:38,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-04-05 00:40:38,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 00:40:38,731 INFO L225 Difference]: With dead ends: 37 [2022-04-05 00:40:38,731 INFO L226 Difference]: Without dead ends: 0 [2022-04-05 00:40:38,732 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 00:40:38,732 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-04-05 00:40:38,733 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 60 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 10 Unknown, 0 Unchecked, 23.8s Time] [2022-04-05 00:40:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-05 00:40:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-05 00:40:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-04-05 00:40:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-05 00:40:38,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-04-05 00:40:38,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 00:40:38,734 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-05 00:40:38,734 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 00:40:38,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-05 00:40:38,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-05 00:40:38,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 00:40:38,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 00:40:38,740 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-05 00:40:38,741 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 00:40:38,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 12:40:38 BasicIcfg [2022-04-05 00:40:38,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 00:40:38,743 INFO L158 Benchmark]: Toolchain (without parser) took 121607.36ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 128.0MB in the beginning and 82.8MB in the end (delta: 45.2MB). Peak memory consumption was 81.3MB. Max. memory is 8.0GB. [2022-04-05 00:40:38,744 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory was 144.4MB in the beginning and 144.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 00:40:38,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.20ms. Allocated memory is still 177.2MB. Free memory was 127.7MB in the beginning and 152.3MB in the end (delta: -24.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-05 00:40:38,744 INFO L158 Benchmark]: Boogie Preprocessor took 32.51ms. Allocated memory is still 177.2MB. Free memory was 152.3MB in the beginning and 150.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-05 00:40:38,745 INFO L158 Benchmark]: RCFGBuilder took 8972.61ms. Allocated memory is still 177.2MB. Free memory was 150.9MB in the beginning and 138.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-05 00:40:38,745 INFO L158 Benchmark]: IcfgTransformer took 20.61ms. Allocated memory is still 177.2MB. Free memory was 138.7MB in the beginning and 137.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-05 00:40:38,745 INFO L158 Benchmark]: TraceAbstraction took 112355.90ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 137.1MB in the beginning and 82.8MB in the end (delta: 54.2MB). Peak memory consumption was 90.9MB. Max. memory is 8.0GB. [2022-04-05 00:40:38,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory was 144.4MB in the beginning and 144.2MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.20ms. Allocated memory is still 177.2MB. Free memory was 127.7MB in the beginning and 152.3MB in the end (delta: -24.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.51ms. Allocated memory is still 177.2MB. Free memory was 152.3MB in the beginning and 150.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 8972.61ms. Allocated memory is still 177.2MB. Free memory was 150.9MB in the beginning and 138.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 20.61ms. Allocated memory is still 177.2MB. Free memory was 138.7MB in the beginning and 137.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 112355.90ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 137.1MB in the beginning and 82.8MB in the end (delta: 54.2MB). Peak memory consumption was 90.9MB. 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 - PositiveResult [Line: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 112.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 110.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 49 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 110.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 302 SdHoareTripleChecker+Invalid, 102.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 193 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 109 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, InterpolantAutomatonStates: 25, 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, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 1175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 7/7 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-05 00:40:38,770 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...