/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 19:01:33,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 19:01:33,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 19:01:33,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 19:01:33,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 19:01:33,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 19:01:33,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 19:01:33,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 19:01:33,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 19:01:33,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 19:01:33,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 19:01:33,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 19:01:33,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 19:01:33,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 19:01:33,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 19:01:33,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 19:01:33,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 19:01:33,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 19:01:33,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 19:01:33,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 19:01:33,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 19:01:33,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 19:01:33,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 19:01:33,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 19:01:33,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 19:01:34,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 19:01:34,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 19:01:34,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 19:01:34,012 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 19:01:34,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 19:01:34,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 19:01:34,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 19:01:34,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 19:01:34,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 19:01:34,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 19:01:34,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 19:01:34,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 19:01:34,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 19:01:34,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 19:01:34,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 19:01:34,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 19:01:34,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 19:01:34,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 19:01:34,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 19:01:34,035 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 19:01:34,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 19:01:34,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 19:01:34,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:01:34,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 19:01:34,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 19:01:34,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 19:01:34,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 19:01:34,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 19:01:34,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 19:01:34,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 19:01:34,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 19:01:34,511 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 19:01:34,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2021-02-23 19:01:34,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a089c76/87023b18683445f9a13edb9c4a671682/FLAG11b1c8114 [2021-02-23 19:01:35,404 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 19:01:35,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2021-02-23 19:01:35,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a089c76/87023b18683445f9a13edb9c4a671682/FLAG11b1c8114 [2021-02-23 19:01:35,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a089c76/87023b18683445f9a13edb9c4a671682 [2021-02-23 19:01:35,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 19:01:35,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 19:01:35,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 19:01:35,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 19:01:35,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 19:01:35,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:01:35" (1/1) ... [2021-02-23 19:01:35,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657e1742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:35, skipping insertion in model container [2021-02-23 19:01:35,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:01:35" (1/1) ... [2021-02-23 19:01:35,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 19:01:35,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 19:01:35,984 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/mod3.c.v+cfa-reducer.c[1224,1237] [2021-02-23 19:01:35,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:01:36,010 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 19:01:36,033 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/mod3.c.v+cfa-reducer.c[1224,1237] [2021-02-23 19:01:36,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:01:36,055 INFO L208 MainTranslator]: Completed translation [2021-02-23 19:01:36,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36 WrapperNode [2021-02-23 19:01:36,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 19:01:36,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 19:01:36,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 19:01:36,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 19:01:36,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (1/1) ... [2021-02-23 19:01:36,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 19:01:36,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 19:01:36,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 19:01:36,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 19:01:36,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (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 19:01:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 19:01:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 19:01:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 19:01:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 19:01:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 19:01:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 19:01:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 19:01:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 19:01:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 19:01:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 19:01:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 19:01:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 19:01:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 19:01:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 19:01:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 19:01:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 19:01:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 19:01:36,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 19:01:36,791 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 19:01:36,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:01:36 BoogieIcfgContainer [2021-02-23 19:01:36,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 19:01:36,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 19:01:36,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 19:01:36,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 19:01:36,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:01:35" (1/3) ... [2021-02-23 19:01:36,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aa684c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:01:36, skipping insertion in model container [2021-02-23 19:01:36,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:01:36" (2/3) ... [2021-02-23 19:01:36,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aa684c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:01:36, skipping insertion in model container [2021-02-23 19:01:36,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:01:36" (3/3) ... [2021-02-23 19:01:36,809 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2021-02-23 19:01:36,822 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 19:01:36,828 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 19:01:36,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 19:01:36,895 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 19:01:36,896 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 19:01:36,896 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 19:01:36,896 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 19:01:36,897 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 19:01:36,897 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 19:01:36,897 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 19:01:36,897 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 19:01:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2021-02-23 19:01:36,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 19:01:36,934 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:01:36,936 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] [2021-02-23 19:01:36,936 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:01:36,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:01:36,945 INFO L82 PathProgramCache]: Analyzing trace with hash -882832926, now seen corresponding path program 1 times [2021-02-23 19:01:36,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:01:36,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859344353] [2021-02-23 19:01:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:01:37,066 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:01:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:01:37,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:37,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:37,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:37,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:01:37,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:37,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:37,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:01:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:01:37,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:37,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:37,437 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 19:01:37,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859344353] [2021-02-23 19:01:37,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:01:37,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 19:01:37,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842227437] [2021-02-23 19:01:37,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 19:01:37,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:01:37,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 19:01:37,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 19:01:37,470 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 4 states. [2021-02-23 19:01:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:01:37,864 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2021-02-23 19:01:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 19:01:37,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2021-02-23 19:01:37,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:01:37,882 INFO L225 Difference]: With dead ends: 91 [2021-02-23 19:01:37,883 INFO L226 Difference]: Without dead ends: 64 [2021-02-23 19:01:37,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 19:01:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-02-23 19:01:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2021-02-23 19:01:37,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-02-23 19:01:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2021-02-23 19:01:37,984 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 28 [2021-02-23 19:01:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:01:37,987 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2021-02-23 19:01:37,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 19:01:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2021-02-23 19:01:37,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-02-23 19:01:37,991 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:01:37,992 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-23 19:01:37,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 19:01:37,992 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:01:37,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:01:37,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1517749848, now seen corresponding path program 1 times [2021-02-23 19:01:37,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:01:37,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329776306] [2021-02-23 19:01:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:01:38,228 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-02-23 19:01:38,247 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 19:01:38,250 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:01:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:01:38,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:38,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:38,789 WARN L141 QuantifierPusher]: treesize reduction 86, result has 62.8 percent of original size [2021-02-23 19:01:38,802 WARN L147 QuantifierPusher]: treesize reduction 86, result has 62.8 percent of original size 145 [2021-02-23 19:01:38,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:38,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-23 19:01:38,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:38,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:01:38,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:38,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:01:38,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:38,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:38,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:01:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:01:39,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:39,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:39,011 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 19:01:39,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329776306] [2021-02-23 19:01:39,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:01:39,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 19:01:39,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115523176] [2021-02-23 19:01:39,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 19:01:39,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:01:39,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 19:01:39,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 19:01:39,017 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 7 states. [2021-02-23 19:01:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:01:39,943 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2021-02-23 19:01:39,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 19:01:39,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2021-02-23 19:01:39,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:01:39,946 INFO L225 Difference]: With dead ends: 102 [2021-02-23 19:01:39,947 INFO L226 Difference]: Without dead ends: 63 [2021-02-23 19:01:39,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:01:39,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-02-23 19:01:39,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2021-02-23 19:01:39,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-02-23 19:01:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2021-02-23 19:01:39,974 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 36 [2021-02-23 19:01:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:01:39,975 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2021-02-23 19:01:39,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 19:01:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2021-02-23 19:01:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-23 19:01:39,977 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:01:39,977 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-23 19:01:39,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 19:01:39,977 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:01:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:01:39,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1388696197, now seen corresponding path program 1 times [2021-02-23 19:01:39,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:01:39,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743433524] [2021-02-23 19:01:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:01:40,645 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 47 [2021-02-23 19:01:40,648 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 19:01:40,650 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:01:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:01:40,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:40,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:40,886 WARN L141 QuantifierPusher]: treesize reduction 1, result has 99.2 percent of original size [2021-02-23 19:01:40,891 WARN L147 QuantifierPusher]: treesize reduction 1, result has 99.2 percent of original size 121 [2021-02-23 19:01:40,905 WARN L141 QuantifierPusher]: treesize reduction 36, result has 77.4 percent of original size [2021-02-23 19:01:40,907 WARN L147 QuantifierPusher]: treesize reduction 36, result has 77.4 percent of original size 123 [2021-02-23 19:01:40,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:40,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-02-23 19:01:40,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:40,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:01:40,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:40,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:01:41,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:41,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:41,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:01:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:01:41,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:41,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:41,088 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 19:01:41,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743433524] [2021-02-23 19:01:41,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:01:41,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 19:01:41,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009730070] [2021-02-23 19:01:41,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 19:01:41,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:01:41,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 19:01:41,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 19:01:41,092 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 7 states. [2021-02-23 19:01:41,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:01:41,675 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2021-02-23 19:01:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 19:01:41,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2021-02-23 19:01:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:01:41,677 INFO L225 Difference]: With dead ends: 103 [2021-02-23 19:01:41,678 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 19:01:41,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:01:41,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 19:01:41,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 19:01:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 19:01:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 19:01:41,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-02-23 19:01:41,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:01:41,681 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 19:01:41,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 19:01:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 19:01:41,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 19:01:41,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 19:01:41,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 19:01:43,084 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-23 19:01:43,084 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-23 19:01:43,084 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-23 19:01:43,085 INFO L192 CegarLoopUtils]: At program point L4-3(line 4) the Hoare annotation is: true [2021-02-23 19:01:43,085 INFO L192 CegarLoopUtils]: At program point L4-4(line 4) the Hoare annotation is: true [2021-02-23 19:01:43,085 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,085 INFO L192 CegarLoopUtils]: At program point L4-5(line 4) the Hoare annotation is: true [2021-02-23 19:01:43,086 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,086 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,086 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)|) (= ~__return_107~0 |old(~__return_107~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 19:01:43,086 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-23 19:01:43,087 INFO L192 CegarLoopUtils]: At program point L4(line 4) the Hoare annotation is: true [2021-02-23 19:01:43,087 INFO L192 CegarLoopUtils]: At program point L4-1(line 4) the Hoare annotation is: true [2021-02-23 19:01:43,087 INFO L192 CegarLoopUtils]: At program point L4-2(line 4) the Hoare annotation is: true [2021-02-23 19:01:43,087 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,087 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,087 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,088 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,088 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 19:01:43,088 INFO L185 CegarLoopUtils]: At program point L64(line 64) the Hoare annotation is: false [2021-02-23 19:01:43,088 INFO L185 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,089 INFO L185 CegarLoopUtils]: At program point L27(lines 27 49) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,089 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 9 78) the Hoare annotation is: true [2021-02-23 19:01:43,089 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-02-23 19:01:43,089 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-02-23 19:01:43,090 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-02-23 19:01:43,090 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,090 INFO L192 CegarLoopUtils]: At program point L69(line 69) the Hoare annotation is: true [2021-02-23 19:01:43,090 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,090 INFO L185 CegarLoopUtils]: At program point L36-1(line 36) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,091 INFO L185 CegarLoopUtils]: At program point L36-2(line 36) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,091 INFO L185 CegarLoopUtils]: At program point L61(lines 61 70) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_107~0)| ~__return_107~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,091 INFO L185 CegarLoopUtils]: At program point L57(line 57) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,091 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse3 main_~main__x~0) 3))) (let ((.cse2 (div (+ .cse3 (* .cse1 (- 3)) main_~main__x~0) 4294967296))) (and (= |old(~__return_107~0)| ~__return_107~0) (<= (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 .cse2) 1) main_~main__x~0) (<= (* 1431655765 main_~main__x~0) (+ (* 6148914689804861440 .cse0) (* 4294967296 .cse1) (* 6148914689804861440 .cse2) 1431655765))))))) [2021-02-23 19:01:43,092 INFO L185 CegarLoopUtils]: At program point L16(lines 16 77) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-02-23 19:01:43,092 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,092 INFO L185 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,092 INFO L185 CegarLoopUtils]: At program point L37(lines 37 48) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,093 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)) 2863311530)))) (* 1431655765 main_~main__x~0))) [2021-02-23 19:01:43,093 INFO L185 CegarLoopUtils]: At program point L58(line 58) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,093 INFO L185 CegarLoopUtils]: At program point L54(lines 54 76) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-02-23 19:01:43,093 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,094 INFO L185 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,094 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 9 78) the Hoare annotation is: true [2021-02-23 19:01:43,094 INFO L185 CegarLoopUtils]: At program point L75(line 75) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,094 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 63) the Hoare annotation is: false [2021-02-23 19:01:43,094 INFO L185 CegarLoopUtils]: At program point L63(line 63) the Hoare annotation is: false [2021-02-23 19:01:43,095 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,095 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 9 78) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,095 INFO L185 CegarLoopUtils]: At program point L59(line 59) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2021-02-23 19:01:43,095 INFO L185 CegarLoopUtils]: At program point L18(lines 18 50) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,096 INFO L185 CegarLoopUtils]: At program point L47(lines 10 78) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-02-23 19:01:43,096 INFO L185 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,096 INFO L185 CegarLoopUtils]: At program point L68(line 68) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,096 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-02-23 19:01:43,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:01:43 BoogieIcfgContainer [2021-02-23 19:01:43,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 19:01:43,126 INFO L168 Benchmark]: Toolchain (without parser) took 7386.91 ms. Allocated memory was 156.2 MB in the beginning and 197.1 MB in the end (delta: 40.9 MB). Free memory was 133.5 MB in the beginning and 111.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 110.0 MB. Max. memory is 8.0 GB. [2021-02-23 19:01:43,127 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 156.2 MB. Free memory was 128.7 MB in the beginning and 128.2 MB in the end (delta: 435.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 19:01:43,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.29 ms. Allocated memory is still 156.2 MB. Free memory was 132.5 MB in the beginning and 122.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 19:01:43,128 INFO L168 Benchmark]: Boogie Preprocessor took 46.52 ms. Allocated memory is still 156.2 MB. Free memory was 122.8 MB in the beginning and 121.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 19:01:43,129 INFO L168 Benchmark]: RCFGBuilder took 688.53 ms. Allocated memory is still 156.2 MB. Free memory was 121.3 MB in the beginning and 139.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 19:01:43,130 INFO L168 Benchmark]: TraceAbstraction took 6327.28 ms. Allocated memory was 156.2 MB in the beginning and 197.1 MB in the end (delta: 40.9 MB). Free memory was 139.0 MB in the beginning and 111.4 MB in the end (delta: 27.6 MB). Peak memory consumption was 114.3 MB. Max. memory is 8.0 GB. [2021-02-23 19:01:43,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 156.2 MB. Free memory was 128.7 MB in the beginning and 128.2 MB in the end (delta: 435.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 300.29 ms. Allocated memory is still 156.2 MB. Free memory was 132.5 MB in the beginning and 122.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.52 ms. Allocated memory is still 156.2 MB. Free memory was 122.8 MB in the beginning and 121.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 688.53 ms. Allocated memory is still 156.2 MB. Free memory was 121.3 MB in the beginning and 139.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6327.28 ms. Allocated memory was 156.2 MB in the beginning and 197.1 MB in the end (delta: 40.9 MB). Free memory was 139.0 MB in the beginning and 111.4 MB in the end (delta: 27.6 MB). Peak memory consumption was 114.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 63]: 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: 10]: Loop Invariant Derived loop invariant: (\old(__return_107) == __return_107 && main__y == 1) || (\old(__return_107) == __return_107 && main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296)) - ProcedureContractResult [Line: 9]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 176 SDslu, 139 SDs, 0 SdLazy, 416 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, 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, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 52 PreInvPairs, 104 NumberOfFragments, 890 HoareAnnotationTreeSize, 52 FomulaSimplifications, 5340 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 52 FomulaSimplificationsInter, 1203 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...