/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:49:40,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:49:40,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:49:40,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:49:40,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:49:40,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:49:40,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:49:40,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:49:40,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:49:40,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:49:40,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:49:40,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:49:40,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:49:40,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:49:40,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:49:40,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:49:40,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:49:40,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:49:40,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:49:40,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:49:40,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:49:40,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:49:40,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:49:40,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:49:40,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:49:40,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:49:40,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:49:40,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:49:40,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:49:40,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:49:40,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:49:40,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:49:40,374 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:49:40,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:49:40,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:49:40,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:49:40,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:49:40,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:49:40,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:49:40,375 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:49:40,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:49:40,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:49:40,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:49:40,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:49:40,377 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:49:40,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:49:40,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:49:40,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:49:40,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:49:40,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:49:40,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:49:40,378 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:49:40,378 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:49:40,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:49:40,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:49:40,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:49:40,911 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:49:40,912 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:49:40,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2021-02-24 04:49:41,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3629c17bd/53f59354879941bc98d4859b28b49d39/FLAGbfedf1b80 [2021-02-24 04:49:41,719 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:49:41,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2021-02-24 04:49:41,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3629c17bd/53f59354879941bc98d4859b28b49d39/FLAGbfedf1b80 [2021-02-24 04:49:42,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3629c17bd/53f59354879941bc98d4859b28b49d39 [2021-02-24 04:49:42,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:49:42,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:49:42,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:49:42,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:49:42,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:49:42,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159fef5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42, skipping insertion in model container [2021-02-24 04:49:42,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:49:42,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:49:42,476 WARN L226 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/aiob_4.c.v+cfa-reducer.c[7920,7933] [2021-02-24 04:49:42,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:49:42,499 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:49:42,570 WARN L226 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/aiob_4.c.v+cfa-reducer.c[7920,7933] [2021-02-24 04:49:42,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:49:42,606 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:49:42,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42 WrapperNode [2021-02-24 04:49:42,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:49:42,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:49:42,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:49:42,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:49:42,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... [2021-02-24 04:49:42,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:49:42,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:49:42,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:49:42,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:49:42,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:49:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:49:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:49:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:49:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:49:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-02-24 04:49:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-02-24 04:49:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:49:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:49:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:49:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:49:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:49:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:49:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:49:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:49:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:49:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:49:43,887 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:49:43,888 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:49:43,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:49:43 BoogieIcfgContainer [2021-02-24 04:49:43,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:49:43,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:49:43,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:49:43,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:49:43,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:49:42" (1/3) ... [2021-02-24 04:49:43,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8142c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:49:43, skipping insertion in model container [2021-02-24 04:49:43,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:42" (2/3) ... [2021-02-24 04:49:43,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8142c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:49:43, skipping insertion in model container [2021-02-24 04:49:43,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:49:43" (3/3) ... [2021-02-24 04:49:43,900 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2021-02-24 04:49:43,908 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:49:43,914 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:49:43,935 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:49:43,961 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:49:43,962 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:49:43,962 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:49:43,962 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:49:43,962 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:49:43,962 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:49:43,962 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:49:43,962 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:49:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2021-02-24 04:49:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-02-24 04:49:44,010 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:44,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:49:44,012 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:44,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1953402615, now seen corresponding path program 1 times [2021-02-24 04:49:44,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:44,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127842369] [2021-02-24 04:49:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:44,103 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:49:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:44,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:44,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:44,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:44,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:44,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:44,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:44,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:44,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:44,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:44,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:44,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:44,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:45,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:49:45,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127842369] [2021-02-24 04:49:45,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:45,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:49:45,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182365610] [2021-02-24 04:49:45,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:49:45,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:45,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:49:45,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:49:45,092 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 6 states. [2021-02-24 04:49:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:45,956 INFO L93 Difference]: Finished difference Result 391 states and 398 transitions. [2021-02-24 04:49:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 04:49:45,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 322 [2021-02-24 04:49:45,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:45,975 INFO L225 Difference]: With dead ends: 391 [2021-02-24 04:49:45,976 INFO L226 Difference]: Without dead ends: 354 [2021-02-24 04:49:45,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:49:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-02-24 04:49:46,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 335. [2021-02-24 04:49:46,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2021-02-24 04:49:46,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 336 transitions. [2021-02-24 04:49:46,061 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 336 transitions. Word has length 322 [2021-02-24 04:49:46,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:46,063 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 336 transitions. [2021-02-24 04:49:46,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:49:46,064 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 336 transitions. [2021-02-24 04:49:46,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-02-24 04:49:46,070 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:46,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:49:46,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:49:46,071 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:46,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1577928009, now seen corresponding path program 1 times [2021-02-24 04:49:46,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:46,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228830375] [2021-02-24 04:49:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:46,076 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:49:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:46,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:46,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:46,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:46,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:46,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:46,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:46,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:46,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:46,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:46,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:46,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:49:46,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228830375] [2021-02-24 04:49:46,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:46,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:49:46,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124316867] [2021-02-24 04:49:46,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:49:46,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:46,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:49:46,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:49:46,684 INFO L87 Difference]: Start difference. First operand 335 states and 336 transitions. Second operand 5 states. [2021-02-24 04:49:47,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:47,520 INFO L93 Difference]: Finished difference Result 379 states and 382 transitions. [2021-02-24 04:49:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 04:49:47,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2021-02-24 04:49:47,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:47,530 INFO L225 Difference]: With dead ends: 379 [2021-02-24 04:49:47,530 INFO L226 Difference]: Without dead ends: 354 [2021-02-24 04:49:47,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:49:47,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-02-24 04:49:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 340. [2021-02-24 04:49:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2021-02-24 04:49:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 341 transitions. [2021-02-24 04:49:47,592 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 341 transitions. Word has length 322 [2021-02-24 04:49:47,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:47,593 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 341 transitions. [2021-02-24 04:49:47,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:49:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 341 transitions. [2021-02-24 04:49:47,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-02-24 04:49:47,601 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:47,601 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:49:47,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:49:47,602 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:47,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:47,603 INFO L82 PathProgramCache]: Analyzing trace with hash -971732799, now seen corresponding path program 1 times [2021-02-24 04:49:47,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:47,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151415773] [2021-02-24 04:49:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:49,034 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2021-02-24 04:49:49,051 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 04:49:49,058 INFO L168 Benchmark]: Toolchain (without parser) took 7025.62 ms. Allocated memory was 152.0 MB in the beginning and 225.4 MB in the end (delta: 73.4 MB). Free memory was 127.2 MB in the beginning and 198.2 MB in the end (delta: -71.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:49,061 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 152.0 MB. Free memory is still 135.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:49:49,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.47 ms. Allocated memory is still 152.0 MB. Free memory was 126.2 MB in the beginning and 110.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:49,064 INFO L168 Benchmark]: Boogie Preprocessor took 145.83 ms. Allocated memory is still 152.0 MB. Free memory was 110.6 MB in the beginning and 107.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:49,066 INFO L168 Benchmark]: RCFGBuilder took 1128.02 ms. Allocated memory is still 152.0 MB. Free memory was 107.0 MB in the beginning and 107.0 MB in the end (delta: -73.8 kB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:49,072 INFO L168 Benchmark]: TraceAbstraction took 5163.68 ms. Allocated memory was 152.0 MB in the beginning and 225.4 MB in the end (delta: 73.4 MB). Free memory was 106.5 MB in the beginning and 198.2 MB in the end (delta: -91.7 MB). Peak memory consumption was 108.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:49,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 152.0 MB. Free memory is still 135.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 557.47 ms. Allocated memory is still 152.0 MB. Free memory was 126.2 MB in the beginning and 110.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.83 ms. Allocated memory is still 152.0 MB. Free memory was 110.6 MB in the beginning and 107.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1128.02 ms. Allocated memory is still 152.0 MB. Free memory was 107.0 MB in the beginning and 107.0 MB in the end (delta: -73.8 kB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5163.68 ms. Allocated memory was 152.0 MB in the beginning and 225.4 MB in the end (delta: 73.4 MB). Free memory was 106.5 MB in the beginning and 198.2 MB in the end (delta: -91.7 MB). Peak memory consumption was 108.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...