/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/psyco/psyco_math_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:48:32,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:48:32,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:48:33,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:48:33,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:48:33,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:48:33,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:48:33,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:48:33,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:48:33,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:48:33,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:48:33,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:48:33,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:48:33,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:48:33,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:48:33,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:48:33,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:48:33,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:48:33,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:48:33,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:48:33,109 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 13:48:33,139 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:48:33,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:48:33,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:48:33,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:48:33,141 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:48:33,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:48:33,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:48:33,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:48:33,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:48:33,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:48:33,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:48:33,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:48:33,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:48:33,143 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:48:33,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:48:33,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:48:33,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:48:33,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:48:33,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:48:33,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:48:33,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:48:33,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:48:33,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:48:33,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:48:33,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:48:33,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:48:33,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:48:33,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:48:33,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:48:33,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:48:33,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:48:33,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:48:33,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:48:33,609 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:48:33,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_math_1.c [2021-02-23 13:48:33,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/905a93a78/2d958773dc4e47d6a1c5cf3fdf20c9ee/FLAGd69f34c54 [2021-02-23 13:48:34,476 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:48:34,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_math_1.c [2021-02-23 13:48:34,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/905a93a78/2d958773dc4e47d6a1c5cf3fdf20c9ee/FLAGd69f34c54 [2021-02-23 13:48:34,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/905a93a78/2d958773dc4e47d6a1c5cf3fdf20c9ee [2021-02-23 13:48:34,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:48:34,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:48:34,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:48:34,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:48:34,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:48:34,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:48:34" (1/1) ... [2021-02-23 13:48:34,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367fa0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:34, skipping insertion in model container [2021-02-23 13:48:34,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:48:34" (1/1) ... [2021-02-23 13:48:34,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:48:34,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:48:35,060 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_math_1.c[11705,11718] [2021-02-23 13:48:35,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:48:35,084 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:48:35,127 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_math_1.c[11705,11718] [2021-02-23 13:48:35,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:48:35,166 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:48:35,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35 WrapperNode [2021-02-23 13:48:35,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:48:35,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:48:35,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:48:35,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:48:35,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (1/1) ... [2021-02-23 13:48:35,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:48:35,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:48:35,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:48:35,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:48:35,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (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 13:48:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:48:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:48:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:48:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:48:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:48:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:48:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:48:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:48:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:48:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:48:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:48:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:48:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:48:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:48:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:48:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:48:36,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:48:36,082 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-02-23 13:48:36,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:48:36 BoogieIcfgContainer [2021-02-23 13:48:36,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:48:36,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:48:36,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:48:36,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:48:36,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:48:34" (1/3) ... [2021-02-23 13:48:36,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbc9d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:48:36, skipping insertion in model container [2021-02-23 13:48:36,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:48:35" (2/3) ... [2021-02-23 13:48:36,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbc9d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:48:36, skipping insertion in model container [2021-02-23 13:48:36,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:48:36" (3/3) ... [2021-02-23 13:48:36,095 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_math_1.c [2021-02-23 13:48:36,103 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:48:36,110 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:48:36,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:48:36,164 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:48:36,164 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:48:36,164 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:48:36,164 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:48:36,165 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:48:36,165 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:48:36,165 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:48:36,165 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:48:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2021-02-23 13:48:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-23 13:48:36,193 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:48:36,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:48:36,194 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:48:36,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:48:36,201 INFO L82 PathProgramCache]: Analyzing trace with hash -716195446, now seen corresponding path program 1 times [2021-02-23 13:48:36,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:48:36,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876168736] [2021-02-23 13:48:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:48:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:48:36,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:48:36,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:48:36,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:48:36,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:48:36,568 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-02-23 13:48:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:48:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:48:36,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:48:36,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:48:36,598 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 13:48:36,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876168736] [2021-02-23 13:48:36,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:48:36,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 13:48:36,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130490825] [2021-02-23 13:48:36,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 13:48:36,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:48:36,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 13:48:36,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:48:36,628 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2021-02-23 13:48:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:48:36,713 INFO L93 Difference]: Finished difference Result 139 states and 258 transitions. [2021-02-23 13:48:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 13:48:36,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-02-23 13:48:36,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:48:36,731 INFO L225 Difference]: With dead ends: 139 [2021-02-23 13:48:36,731 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:48:36,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:48:36,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:48:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:48:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:48:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:48:36,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-02-23 13:48:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:48:36,768 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:48:36,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 13:48:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:48:36,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:48:36,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:48:36,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:48:36,928 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-23 13:48:36,928 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-23 13:48:36,928 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-23 13:48:36,929 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:48:36,929 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_IntMath~0 |old(~m_IntMath~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~m_mod_2~0 |old(~m_mod_2~0)|) (= ~m_factorial_2~0 |old(~m_factorial_2~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~m_isPowerOfTwo~0 |old(~m_isPowerOfTwo~0)|) (= ~m_checkedMultiply~0 |old(~m_checkedMultiply~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~m_checkedAdd~0 |old(~m_checkedAdd~0)|) (= ~m_checkedSubtract~0 |old(~m_checkedSubtract~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~m_mod_1~0 |old(~m_mod_1~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~m_log2~0 |old(~m_log2~0)|) (= ~m_factorial_1~0 |old(~m_factorial_1~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~m_log10~0 |old(~m_log10~0)|)) [2021-02-23 13:48:36,929 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:48:36,929 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:48:36,930 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 13:48:36,930 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:48:36,930 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:48:36,930 INFO L189 CegarLoopUtils]: For program point L217(lines 217 227) no Hoare annotation was computed. [2021-02-23 13:48:36,931 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 20 363) no Hoare annotation was computed. [2021-02-23 13:48:36,931 INFO L189 CegarLoopUtils]: For program point L184(lines 184 198) no Hoare annotation was computed. [2021-02-23 13:48:36,931 INFO L189 CegarLoopUtils]: For program point L52(lines 52 66) no Hoare annotation was computed. [2021-02-23 13:48:36,931 INFO L189 CegarLoopUtils]: For program point L267(lines 267 269) no Hoare annotation was computed. [2021-02-23 13:48:36,931 INFO L189 CegarLoopUtils]: For program point L201(lines 201 212) no Hoare annotation was computed. [2021-02-23 13:48:36,931 INFO L189 CegarLoopUtils]: For program point L251(lines 251 253) no Hoare annotation was computed. [2021-02-23 13:48:36,932 INFO L189 CegarLoopUtils]: For program point L119(lines 119 134) no Hoare annotation was computed. [2021-02-23 13:48:36,932 INFO L189 CegarLoopUtils]: For program point L169(lines 169 183) no Hoare annotation was computed. [2021-02-23 13:48:36,932 INFO L189 CegarLoopUtils]: For program point L103(lines 103 118) no Hoare annotation was computed. [2021-02-23 13:48:36,932 INFO L189 CegarLoopUtils]: For program point L70(lines 70 137) no Hoare annotation was computed. [2021-02-23 13:48:36,932 INFO L189 CegarLoopUtils]: For program point L186(lines 186 196) no Hoare annotation was computed. [2021-02-23 13:48:36,932 INFO L189 CegarLoopUtils]: For program point L87(lines 87 102) no Hoare annotation was computed. [2021-02-23 13:48:36,933 INFO L189 CegarLoopUtils]: For program point L54(lines 54 64) no Hoare annotation was computed. [2021-02-23 13:48:36,933 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 20 363) no Hoare annotation was computed. [2021-02-23 13:48:36,933 INFO L189 CegarLoopUtils]: For program point L236(lines 236 238) no Hoare annotation was computed. [2021-02-23 13:48:36,933 INFO L189 CegarLoopUtils]: For program point L71(lines 71 86) no Hoare annotation was computed. [2021-02-23 13:48:36,933 INFO L189 CegarLoopUtils]: For program point L154(lines 154 168) no Hoare annotation was computed. [2021-02-23 13:48:36,933 INFO L189 CegarLoopUtils]: For program point L121(lines 121 132) no Hoare annotation was computed. [2021-02-23 13:48:36,934 INFO L189 CegarLoopUtils]: For program point L171(lines 171 181) no Hoare annotation was computed. [2021-02-23 13:48:36,934 INFO L189 CegarLoopUtils]: For program point L138(lines 138 355) no Hoare annotation was computed. [2021-02-23 13:48:36,934 INFO L189 CegarLoopUtils]: For program point L105(lines 105 116) no Hoare annotation was computed. [2021-02-23 13:48:36,934 INFO L189 CegarLoopUtils]: For program point L221(lines 221 223) no Hoare annotation was computed. [2021-02-23 13:48:36,934 INFO L189 CegarLoopUtils]: For program point L89(lines 89 100) no Hoare annotation was computed. [2021-02-23 13:48:36,935 INFO L189 CegarLoopUtils]: For program point L205(lines 205 207) no Hoare annotation was computed. [2021-02-23 13:48:36,935 INFO L189 CegarLoopUtils]: For program point L139(lines 139 153) no Hoare annotation was computed. [2021-02-23 13:48:36,935 INFO L189 CegarLoopUtils]: For program point L73(lines 73 84) no Hoare annotation was computed. [2021-02-23 13:48:36,935 INFO L192 CegarLoopUtils]: At program point L354(lines 28 358) the Hoare annotation is: true [2021-02-23 13:48:36,935 INFO L189 CegarLoopUtils]: For program point L156(lines 156 166) no Hoare annotation was computed. [2021-02-23 13:48:36,936 INFO L189 CegarLoopUtils]: For program point L338(lines 338 352) no Hoare annotation was computed. [2021-02-23 13:48:36,936 INFO L189 CegarLoopUtils]: For program point L190(lines 190 192) no Hoare annotation was computed. [2021-02-23 13:48:36,936 INFO L189 CegarLoopUtils]: For program point L58(lines 58 60) no Hoare annotation was computed. [2021-02-23 13:48:36,936 INFO L189 CegarLoopUtils]: For program point L141(lines 141 151) no Hoare annotation was computed. [2021-02-23 13:48:36,936 INFO L189 CegarLoopUtils]: For program point L323(lines 323 337) no Hoare annotation was computed. [2021-02-23 13:48:36,936 INFO L189 CegarLoopUtils]: For program point L125(lines 125 127) no Hoare annotation was computed. [2021-02-23 13:48:36,937 INFO L189 CegarLoopUtils]: For program point L340(lines 340 350) no Hoare annotation was computed. [2021-02-23 13:48:36,937 INFO L189 CegarLoopUtils]: For program point L307(lines 307 322) no Hoare annotation was computed. [2021-02-23 13:48:36,937 INFO L189 CegarLoopUtils]: For program point L175(lines 175 177) no Hoare annotation was computed. [2021-02-23 13:48:36,937 INFO L189 CegarLoopUtils]: For program point L109(lines 109 111) no Hoare annotation was computed. [2021-02-23 13:48:36,937 INFO L189 CegarLoopUtils]: For program point L291(lines 291 306) no Hoare annotation was computed. [2021-02-23 13:48:36,938 INFO L189 CegarLoopUtils]: For program point L93(lines 93 95) no Hoare annotation was computed. [2021-02-23 13:48:36,938 INFO L189 CegarLoopUtils]: For program point L77(lines 77 79) no Hoare annotation was computed. [2021-02-23 13:48:36,938 INFO L189 CegarLoopUtils]: For program point L325(lines 325 335) no Hoare annotation was computed. [2021-02-23 13:48:36,938 INFO L189 CegarLoopUtils]: For program point L160(lines 160 162) no Hoare annotation was computed. [2021-02-23 13:48:36,938 INFO L192 CegarLoopUtils]: At program point L28-2(lines 28 358) the Hoare annotation is: true [2021-02-23 13:48:36,939 INFO L189 CegarLoopUtils]: For program point L28-3(lines 28 358) no Hoare annotation was computed. [2021-02-23 13:48:36,939 INFO L189 CegarLoopUtils]: For program point L309(lines 309 320) no Hoare annotation was computed. [2021-02-23 13:48:36,939 INFO L189 CegarLoopUtils]: For program point L276(lines 276 290) no Hoare annotation was computed. [2021-02-23 13:48:36,939 INFO L189 CegarLoopUtils]: For program point L293(lines 293 304) no Hoare annotation was computed. [2021-02-23 13:48:36,939 INFO L189 CegarLoopUtils]: For program point L145(lines 145 147) no Hoare annotation was computed. [2021-02-23 13:48:36,939 INFO L189 CegarLoopUtils]: For program point L261(lines 261 275) no Hoare annotation was computed. [2021-02-23 13:48:36,940 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 362) no Hoare annotation was computed. [2021-02-23 13:48:36,940 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 20 363) the Hoare annotation is: true [2021-02-23 13:48:36,940 INFO L189 CegarLoopUtils]: For program point L344(lines 344 346) no Hoare annotation was computed. [2021-02-23 13:48:36,940 INFO L189 CegarLoopUtils]: For program point L278(lines 278 288) no Hoare annotation was computed. [2021-02-23 13:48:36,941 INFO L189 CegarLoopUtils]: For program point L245(lines 245 260) no Hoare annotation was computed. [2021-02-23 13:48:36,941 INFO L185 CegarLoopUtils]: At program point L345(lines 20 363) the Hoare annotation is: false [2021-02-23 13:48:36,941 INFO L189 CegarLoopUtils]: For program point L329(lines 329 331) no Hoare annotation was computed. [2021-02-23 13:48:36,941 INFO L189 CegarLoopUtils]: For program point L263(lines 263 273) no Hoare annotation was computed. [2021-02-23 13:48:36,941 INFO L189 CegarLoopUtils]: For program point L230(lines 230 244) no Hoare annotation was computed. [2021-02-23 13:48:36,942 INFO L189 CegarLoopUtils]: For program point L313(lines 313 315) no Hoare annotation was computed. [2021-02-23 13:48:36,942 INFO L189 CegarLoopUtils]: For program point L247(lines 247 258) no Hoare annotation was computed. [2021-02-23 13:48:36,942 INFO L189 CegarLoopUtils]: For program point L297(lines 297 299) no Hoare annotation was computed. [2021-02-23 13:48:36,942 INFO L189 CegarLoopUtils]: For program point L215(lines 215 229) no Hoare annotation was computed. [2021-02-23 13:48:36,942 INFO L189 CegarLoopUtils]: For program point L232(lines 232 242) no Hoare annotation was computed. [2021-02-23 13:48:36,942 INFO L189 CegarLoopUtils]: For program point L199(lines 199 214) no Hoare annotation was computed. [2021-02-23 13:48:36,943 INFO L189 CegarLoopUtils]: For program point L282(lines 282 284) no Hoare annotation was computed. [2021-02-23 13:48:36,943 INFO L189 CegarLoopUtils]: For program point L51(lines 51 69) no Hoare annotation was computed. [2021-02-23 13:48:36,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:48:36 BoogieIcfgContainer [2021-02-23 13:48:36,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:48:36,957 INFO L168 Benchmark]: Toolchain (without parser) took 2162.63 ms. Allocated memory is still 158.3 MB. Free memory was 134.0 MB in the beginning and 69.7 MB in the end (delta: 64.3 MB). Peak memory consumption was 63.2 MB. Max. memory is 8.0 GB. [2021-02-23 13:48:36,958 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 158.3 MB. Free memory was 130.9 MB in the beginning and 130.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:48:36,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.82 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 120.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:48:36,960 INFO L168 Benchmark]: Boogie Preprocessor took 59.69 ms. Allocated memory is still 158.3 MB. Free memory was 120.8 MB in the beginning and 118.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:48:36,961 INFO L168 Benchmark]: RCFGBuilder took 855.21 ms. Allocated memory is still 158.3 MB. Free memory was 118.5 MB in the beginning and 124.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:48:36,962 INFO L168 Benchmark]: TraceAbstraction took 869.08 ms. Allocated memory is still 158.3 MB. Free memory was 123.7 MB in the beginning and 69.7 MB in the end (delta: 54.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:48:36,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 158.3 MB. Free memory was 130.9 MB in the beginning and 130.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.82 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 120.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.69 ms. Allocated memory is still 158.3 MB. Free memory was 120.8 MB in the beginning and 118.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 855.21 ms. Allocated memory is still 158.3 MB. Free memory was 118.5 MB in the beginning and 124.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 869.08 ms. Allocated memory is still 158.3 MB. Free memory was 123.7 MB in the beginning and 69.7 MB in the end (delta: 54.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 362]: 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: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 92 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 7 PreInvPairs, 9 NumberOfFragments, 70 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 189 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 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...