/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:53:29,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:53:29,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:53:29,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:53:29,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:53:29,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:53:29,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:53:29,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:53:29,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:53:29,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:53:29,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:53:29,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:53:29,231 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:53:29,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:53:29,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:53:29,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:53:29,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:53:29,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:53:29,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:53:29,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:53:29,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:53:29,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:53:29,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:53:29,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:53:29,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:53:29,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:53:29,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:53:29,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:53:29,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:53:29,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:53:29,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:53:29,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:53:29,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:53:29,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:53:29,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:53:29,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:53:29,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:53:29,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:53:29,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:53:29,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:53:29,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:53:29,601 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:53:29,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2021-02-23 13:53:29,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cecd57cb/a94afe80946442b9b7f051fc341ad7a5/FLAGd8d4c159f [2021-02-23 13:53:30,293 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:53:30,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2021-02-23 13:53:30,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cecd57cb/a94afe80946442b9b7f051fc341ad7a5/FLAGd8d4c159f [2021-02-23 13:53:30,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cecd57cb/a94afe80946442b9b7f051fc341ad7a5 [2021-02-23 13:53:30,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:53:30,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:53:30,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:53:30,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:53:30,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:53:30,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c25d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30, skipping insertion in model container [2021-02-23 13:53:30,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:53:30,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:53:30,891 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-crafted/simple_vardep_2.c[584,597] [2021-02-23 13:53:30,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:53:30,912 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:53:30,927 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-crafted/simple_vardep_2.c[584,597] [2021-02-23 13:53:30,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:53:30,946 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:53:30,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30 WrapperNode [2021-02-23 13:53:30,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:53:30,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:53:30,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:53:30,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:53:30,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (1/1) ... [2021-02-23 13:53:30,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:53:30,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:53:30,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:53:30,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:53:30,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (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 13:53:31,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:53:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:53:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:53:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:53:31,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:53:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:53:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:53:31,167 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:53:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:53:31,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:53:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:53:31,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:53:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:53:31,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:53:31,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:53:31,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:53:31,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:53:31,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:53:31,517 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 13:53:31,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:53:31 BoogieIcfgContainer [2021-02-23 13:53:31,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:53:31,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:53:31,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:53:31,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:53:31,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:53:30" (1/3) ... [2021-02-23 13:53:31,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfae6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:53:31, skipping insertion in model container [2021-02-23 13:53:31,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:30" (2/3) ... [2021-02-23 13:53:31,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfae6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:53:31, skipping insertion in model container [2021-02-23 13:53:31,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:53:31" (3/3) ... [2021-02-23 13:53:31,529 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2021-02-23 13:53:31,536 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:53:31,541 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:53:31,562 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:53:31,595 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:53:31,595 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:53:31,596 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:53:31,596 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:53:31,596 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:53:31,596 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:53:31,597 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:53:31,597 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:53:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-02-23 13:53:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-23 13:53:31,642 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:53:31,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:53:31,644 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:53:31,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:53:31,655 INFO L82 PathProgramCache]: Analyzing trace with hash -221021474, now seen corresponding path program 1 times [2021-02-23 13:53:31,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:53:31,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906431860] [2021-02-23 13:53:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:53:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:53:32,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:53:32,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:53:32,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:53:32,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:53:32,166 WARN L141 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-02-23 13:53:32,189 WARN L147 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size 215 [2021-02-23 13:53:32,378 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2021-02-23 13:53:32,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:53:32,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:53:32,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:53:32,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:53:32,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:53:32,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:53:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:53:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:53:32,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:53:32,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:53:32,465 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 13:53:32,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906431860] [2021-02-23 13:53:32,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:53:32,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 13:53:32,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541289125] [2021-02-23 13:53:32,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 13:53:32,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:53:32,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 13:53:32,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 13:53:32,490 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2021-02-23 13:53:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:53:33,141 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-02-23 13:53:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 13:53:33,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2021-02-23 13:53:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:53:33,150 INFO L225 Difference]: With dead ends: 29 [2021-02-23 13:53:33,150 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:53:33,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-02-23 13:53:33,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:53:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:53:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:53:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:53:33,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-02-23 13:53:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:53:33,181 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:53:33,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 13:53:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:53:33,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:53:33,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:53:33,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:53:33,463 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 6) no Hoare annotation was computed. [2021-02-23 13:53:33,464 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 6) no Hoare annotation was computed. [2021-02-23 13:53:33,464 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 6) no Hoare annotation was computed. [2021-02-23 13:53:33,464 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:53:33,464 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 13:53:33,465 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:53:33,465 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:53:33,465 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 13:53:33,465 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:53:33,465 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:53:33,465 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 15 28) the Hoare annotation is: true [2021-02-23 13:53:33,466 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (let ((.cse6 (div (* main_~i~0 2) 4294967296)) (.cse5 (div main_~j~0 4294967296))) (let ((.cse1 (+ (* 2 main_~i~0) (* 4294967296 .cse5))) (.cse0 (* 4294967296 .cse6)) (.cse2 (* 3 main_~i~0)) (.cse4 (* 4294967296 (div main_~k~0 4294967296))) (.cse3 (+ (* 4294967296 (div (* main_~i~0 3) 4294967296)) main_~k~0))) (and (<= (+ main_~j~0 .cse0) .cse1) (<= .cse2 main_~k~0) (< .cse1 (+ main_~j~0 .cse0 1)) (< .cse3 (+ .cse2 .cse4 1)) (<= .cse5 .cse6) (<= (+ .cse2 .cse4) .cse3)))) [2021-02-23 13:53:33,466 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 15 28) no Hoare annotation was computed. [2021-02-23 13:53:33,466 INFO L185 CegarLoopUtils]: At program point L25-1(lines 21 26) the Hoare annotation is: (let ((.cse6 (div (* main_~i~0 2) 4294967296)) (.cse5 (div main_~j~0 4294967296))) (let ((.cse1 (+ (* 2 main_~i~0) (* 4294967296 .cse5))) (.cse0 (* 4294967296 .cse6)) (.cse2 (* 3 main_~i~0)) (.cse4 (* 4294967296 (div main_~k~0 4294967296))) (.cse3 (+ (* 4294967296 (div (* main_~i~0 3) 4294967296)) main_~k~0))) (and (<= (+ main_~j~0 .cse0) .cse1) (<= .cse2 main_~k~0) (< .cse1 (+ main_~j~0 .cse0 1)) (< .cse3 (+ .cse2 .cse4 1)) (<= .cse5 .cse6) (<= (+ .cse2 .cse4) .cse3)))) [2021-02-23 13:53:33,466 INFO L189 CegarLoopUtils]: For program point L21-2(lines 15 28) no Hoare annotation was computed. [2021-02-23 13:53:33,467 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 7 13) the Hoare annotation is: true [2021-02-23 13:53:33,467 INFO L189 CegarLoopUtils]: For program point L10(line 10) no Hoare annotation was computed. [2021-02-23 13:53:33,467 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 7 13) no Hoare annotation was computed. [2021-02-23 13:53:33,467 INFO L189 CegarLoopUtils]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-02-23 13:53:33,467 INFO L189 CegarLoopUtils]: For program point L9-2(lines 7 13) no Hoare annotation was computed. [2021-02-23 13:53:33,467 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-02-23 13:53:33,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:53:33 BoogieIcfgContainer [2021-02-23 13:53:33,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:53:33,488 INFO L168 Benchmark]: Toolchain (without parser) took 2806.07 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 109.0 MB in the beginning and 108.2 MB in the end (delta: 817.3 kB). Peak memory consumption was 32.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:33,489 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 105.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:53:33,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.76 ms. Allocated memory is still 153.1 MB. Free memory was 107.9 MB in the beginning and 133.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:33,491 INFO L168 Benchmark]: Boogie Preprocessor took 34.57 ms. Allocated memory is still 153.1 MB. Free memory was 133.5 MB in the beginning and 132.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:33,492 INFO L168 Benchmark]: RCFGBuilder took 535.67 ms. Allocated memory is still 153.1 MB. Free memory was 132.2 MB in the beginning and 125.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:33,493 INFO L168 Benchmark]: TraceAbstraction took 1965.23 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 124.3 MB in the beginning and 108.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:33,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 105.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 246.76 ms. Allocated memory is still 153.1 MB. Free memory was 107.9 MB in the beginning and 133.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.57 ms. Allocated memory is still 153.1 MB. Free memory was 133.5 MB in the beginning and 132.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 535.67 ms. Allocated memory is still 153.1 MB. Free memory was 132.2 MB in the beginning and 125.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1965.23 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 124.3 MB in the beginning and 108.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 21]: Loop Invariant Derived loop invariant: ((((j + 4294967296 * (i * 2 / 4294967296) <= 2 * i + 4294967296 * (j / 4294967296) && 3 * i <= k) && 2 * i + 4294967296 * (j / 4294967296) < j + 4294967296 * (i * 2 / 4294967296) + 1) && 4294967296 * (i * 3 / 4294967296) + k < 3 * i + 4294967296 * (k / 4294967296) + 1) && j / 4294967296 <= i * 2 / 4294967296) && 3 * i + 4294967296 * (k / 4294967296) <= 4294967296 * (i * 3 / 4294967296) + k - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 30 SDs, 0 SdLazy, 32 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 11 NumberOfFragments, 221 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 169 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 1470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...