/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/jain_6-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:36:40,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:36:40,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:36:40,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:36:40,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:36:40,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:36:40,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:36:40,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:36:40,886 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:36:40,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:36:40,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:36:40,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:36:40,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:36:40,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:36:40,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:36:40,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:36:40,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:36:40,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:36:40,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:36:40,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:36:40,889 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:36:40,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:36:40,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:36:40,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:36:40,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:36:40,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:36:40,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:36:40,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:36:41,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:36:41,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:36:41,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:36:41,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:36:41,312 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:36:41,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_6-1.c [2021-02-23 22:36:41,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff958d1ce/551d5eeb67bd44258f2ab9ed8596dd26/FLAG7563f357e [2021-02-23 22:36:41,937 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:36:41,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_6-1.c [2021-02-23 22:36:41,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff958d1ce/551d5eeb67bd44258f2ab9ed8596dd26/FLAG7563f357e [2021-02-23 22:36:42,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff958d1ce/551d5eeb67bd44258f2ab9ed8596dd26 [2021-02-23 22:36:42,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:36:42,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:36:42,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:36:42,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:36:42,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:36:42,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3570d0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42, skipping insertion in model container [2021-02-23 22:36:42,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:36:42,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:36:42,600 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_6-1.c[370,383] [2021-02-23 22:36:42,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:36:42,637 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:36:42,651 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_6-1.c[370,383] [2021-02-23 22:36:42,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:36:42,677 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:36:42,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42 WrapperNode [2021-02-23 22:36:42,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:36:42,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:36:42,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:36:42,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:36:42,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (1/1) ... [2021-02-23 22:36:42,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:36:42,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:36:42,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:36:42,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:36:42,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (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 [2021-02-23 22:36:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:36:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:36:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:36:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 22:36:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:36:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:36:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:36:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:36:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:36:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-23 22:36:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 22:36:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:36:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:36:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:36:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:36:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:36:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:36:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:36:43,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:36:43,159 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 22:36:43,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:36:43 BoogieIcfgContainer [2021-02-23 22:36:43,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:36:43,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:36:43,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:36:43,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:36:43,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:36:42" (1/3) ... [2021-02-23 22:36:43,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e72ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:36:43, skipping insertion in model container [2021-02-23 22:36:43,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:42" (2/3) ... [2021-02-23 22:36:43,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e72ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:36:43, skipping insertion in model container [2021-02-23 22:36:43,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:36:43" (3/3) ... [2021-02-23 22:36:43,170 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_6-1.c [2021-02-23 22:36:43,177 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:36:43,181 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:36:43,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:36:43,225 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:36:43,226 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:36:43,226 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:36:43,226 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:36:43,226 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:36:43,226 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:36:43,226 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:36:43,227 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:36:43,245 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2021-02-23 22:36:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-23 22:36:43,256 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:36:43,256 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] [2021-02-23 22:36:43,257 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:36:43,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:36:43,264 INFO L82 PathProgramCache]: Analyzing trace with hash 816141850, now seen corresponding path program 1 times [2021-02-23 22:36:43,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:36:43,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688676428] [2021-02-23 22:36:43,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:36:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:43,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:43,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:36:43,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:36:43,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 22:36:43,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 22:36:43,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 22:36:43,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 22:36:43,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:36:43,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:36:43,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:43,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:43,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:36:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:44,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:44,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:36:44,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688676428] [2021-02-23 22:36:44,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:36:44,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 22:36:44,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193544846] [2021-02-23 22:36:44,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 22:36:44,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:36:44,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 22:36:44,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:36:44,071 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 11 states. [2021-02-23 22:36:44,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:36:44,813 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2021-02-23 22:36:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 22:36:44,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2021-02-23 22:36:44,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:36:44,823 INFO L225 Difference]: With dead ends: 66 [2021-02-23 22:36:44,823 INFO L226 Difference]: Without dead ends: 46 [2021-02-23 22:36:44,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-02-23 22:36:44,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-02-23 22:36:44,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-02-23 22:36:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-02-23 22:36:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2021-02-23 22:36:44,878 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 29 [2021-02-23 22:36:44,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:36:44,879 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2021-02-23 22:36:44,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 22:36:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2021-02-23 22:36:44,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-23 22:36:44,880 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:36:44,881 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2021-02-23 22:36:44,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:36:44,881 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:36:44,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:36:44,882 INFO L82 PathProgramCache]: Analyzing trace with hash 288601581, now seen corresponding path program 1 times [2021-02-23 22:36:44,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:36:44,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955362878] [2021-02-23 22:36:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:36:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:45,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:45,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:36:45,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:36:45,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 22:36:45,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 22:36:45,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 22:36:45,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 22:36:45,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 22:36:45,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 22:36:45,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 22:36:45,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:36:45,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:36:45,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:45,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:36:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:45,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 22:36:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:45,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:45,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:36:45,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955362878] [2021-02-23 22:36:45,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:36:45,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-23 22:36:45,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382511998] [2021-02-23 22:36:45,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 22:36:45,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:36:45,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 22:36:45,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-02-23 22:36:45,234 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 12 states. [2021-02-23 22:36:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:36:45,676 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-02-23 22:36:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 22:36:45,677 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2021-02-23 22:36:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:36:45,678 INFO L225 Difference]: With dead ends: 44 [2021-02-23 22:36:45,678 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 22:36:45,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-02-23 22:36:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 22:36:45,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 22:36:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 22:36:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 22:36:45,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-02-23 22:36:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:36:45,681 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 22:36:45,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 22:36:45,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 22:36:45,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 22:36:45,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:36:45,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 22:36:46,254 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 22:36:46,254 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 22:36:46,254 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 22:36:46,255 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 22:36:46,255 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 22:36:46,255 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 22:36:46,255 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 22:36:46,255 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 22:36:46,255 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 22:36:46,256 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 22:36:46,256 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 22:36:46,256 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 22:36:46,256 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 22:36:46,256 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2021-02-23 22:36:46,257 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 22:36:46,257 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 22:36:46,257 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2021-02-23 22:36:46,257 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 12 29) the Hoare annotation is: false [2021-02-23 22:36:46,257 INFO L185 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,258 INFO L185 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,258 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (= main_~x~0 0) [2021-02-23 22:36:46,258 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 12 29) the Hoare annotation is: false [2021-02-23 22:36:46,258 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 12 29) the Hoare annotation is: true [2021-02-23 22:36:46,258 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,259 INFO L185 CegarLoopUtils]: At program point L26-1(lines 20 27) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,259 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,259 INFO L185 CegarLoopUtils]: At program point L24-1(line 24) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,259 INFO L185 CegarLoopUtils]: At program point L22(line 22) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,259 INFO L185 CegarLoopUtils]: At program point L22-1(line 22) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2021-02-23 22:36:46,260 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (and (= main_~y~0 0) (= main_~x~0 0)) [2021-02-23 22:36:46,260 INFO L185 CegarLoopUtils]: At program point L20-2(lines 20 27) the Hoare annotation is: false [2021-02-23 22:36:46,260 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-23 22:36:46,260 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-23 22:36:46,260 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-23 22:36:46,260 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2021-02-23 22:36:46,261 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 22:36:46,261 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 22:36:46,261 INFO L185 CegarLoopUtils]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 22:36:46,261 INFO L185 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 22:36:46,261 INFO L185 CegarLoopUtils]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-23 22:36:46,262 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-23 22:36:46,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:36:46 BoogieIcfgContainer [2021-02-23 22:36:46,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:36:46,282 INFO L168 Benchmark]: Toolchain (without parser) took 3953.90 ms. Allocated memory was 163.6 MB in the beginning and 206.6 MB in the end (delta: 43.0 MB). Free memory was 139.6 MB in the beginning and 146.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 113.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:46,283 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 163.6 MB. Free memory is still 138.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:36:46,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.39 ms. Allocated memory is still 163.6 MB. Free memory was 138.6 MB in the beginning and 129.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:46,285 INFO L168 Benchmark]: Boogie Preprocessor took 57.77 ms. Allocated memory is still 163.6 MB. Free memory was 129.4 MB in the beginning and 127.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:46,289 INFO L168 Benchmark]: RCFGBuilder took 423.19 ms. Allocated memory is still 163.6 MB. Free memory was 127.9 MB in the beginning and 113.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:46,289 INFO L168 Benchmark]: TraceAbstraction took 3118.33 ms. Allocated memory was 163.6 MB in the beginning and 206.6 MB in the end (delta: 43.0 MB). Free memory was 112.9 MB in the beginning and 146.3 MB in the end (delta: -33.4 MB). Peak memory consumption was 85.8 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:46,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 163.6 MB. Free memory is still 138.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 330.39 ms. Allocated memory is still 163.6 MB. Free memory was 138.6 MB in the beginning and 129.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 57.77 ms. Allocated memory is still 163.6 MB. Free memory was 129.4 MB in the beginning and 127.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 423.19 ms. Allocated memory is still 163.6 MB. Free memory was 127.9 MB in the beginning and 113.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3118.33 ms. Allocated memory was 163.6 MB in the beginning and 206.6 MB in the end (delta: 43.0 MB). Free memory was 112.9 MB in the beginning and 146.3 MB in the end (delta: -33.4 MB). Peak memory consumption was 85.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 4 * x + 2 * y + z <= 8 * ((x * 4 + y * 2 + z) / 8) - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 0 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 75 SDslu, 134 SDs, 0 SdLazy, 208 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=1, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 52 PreInvPairs, 72 NumberOfFragments, 263 HoareAnnotationTreeSize, 52 FomulaSimplifications, 412 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 844 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 23200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...