/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-industry-pattern/mod3.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-04-30 23:33:44,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-30 23:33:44,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-30 23:33:44,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-30 23:33:44,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-30 23:33:44,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-30 23:33:44,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-30 23:33:44,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-30 23:33:44,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-30 23:33:44,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-30 23:33:44,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-30 23:33:44,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-30 23:33:44,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-30 23:33:44,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-30 23:33:44,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-30 23:33:44,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-30 23:33:44,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-30 23:33:44,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-30 23:33:44,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-30 23:33:44,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-30 23:33:44,362 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 [2021-04-30 23:33:44,377 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-30 23:33:44,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-30 23:33:44,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-30 23:33:44,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-30 23:33:44,379 INFO L138 SettingsManager]: * Use SBE=true [2021-04-30 23:33:44,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-30 23:33:44,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-30 23:33:44,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-30 23:33:44,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-30 23:33:44,381 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-30 23:33:44,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-30 23:33:44,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-30 23:33:44,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-30 23:33:44,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-30 23:33:44,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-30 23:33:44,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-30 23:33:44,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-30 23:33:44,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-30 23:33:44,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-30 23:33:44,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-30 23:33:44,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-30 23:33:44,693 INFO L275 PluginConnector]: CDTParser initialized [2021-04-30 23:33:44,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c [2021-04-30 23:33:44,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a571124c0/db9a202b270842ce8076325874dadb44/FLAG026351c07 [2021-04-30 23:33:45,071 INFO L306 CDTParser]: Found 1 translation units. [2021-04-30 23:33:45,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c [2021-04-30 23:33:45,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a571124c0/db9a202b270842ce8076325874dadb44/FLAG026351c07 [2021-04-30 23:33:45,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a571124c0/db9a202b270842ce8076325874dadb44 [2021-04-30 23:33:45,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-30 23:33:45,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-30 23:33:45,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-30 23:33:45,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-30 23:33:45,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-30 23:33:45,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf816e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45, skipping insertion in model container [2021-04-30 23:33:45,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-30 23:33:45,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-30 23:33:45,274 WARN L224 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+sep-reducer.c[2031,2044] [2021-04-30 23:33:45,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-30 23:33:45,284 INFO L203 MainTranslator]: Completed pre-run [2021-04-30 23:33:45,351 WARN L224 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+sep-reducer.c[2031,2044] [2021-04-30 23:33:45,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-30 23:33:45,362 INFO L208 MainTranslator]: Completed translation [2021-04-30 23:33:45,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45 WrapperNode [2021-04-30 23:33:45,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-30 23:33:45,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-30 23:33:45,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-30 23:33:45,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-30 23:33:45,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (1/1) ... [2021-04-30 23:33:45,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-30 23:33:45,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-30 23:33:45,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-30 23:33:45,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-30 23:33:45,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (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 [2021-04-30 23:33:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-30 23:33:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-30 23:33:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-30 23:33:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-30 23:33:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-30 23:33:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-30 23:33:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-30 23:33:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-30 23:33:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-30 23:33:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-30 23:33:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-30 23:33:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-30 23:33:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-30 23:33:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-30 23:33:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-30 23:33:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-30 23:33:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-30 23:33:45,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-30 23:33:45,757 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-30 23:33:45,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 11:33:45 BoogieIcfgContainer [2021-04-30 23:33:45,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-30 23:33:45,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-30 23:33:45,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-30 23:33:45,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-30 23:33:45,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 11:33:45" (1/3) ... [2021-04-30 23:33:45,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cabcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 11:33:45, skipping insertion in model container [2021-04-30 23:33:45,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:45" (2/3) ... [2021-04-30 23:33:45,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cabcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 11:33:45, skipping insertion in model container [2021-04-30 23:33:45,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 11:33:45" (3/3) ... [2021-04-30 23:33:45,775 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2021-04-30 23:33:45,779 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-30 23:33:45,781 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-30 23:33:45,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-30 23:33:45,825 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-30 23:33:45,825 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-30 23:33:45,825 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-30 23:33:45,825 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-30 23:33:45,825 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-30 23:33:45,825 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-30 23:33:45,825 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-30 23:33:45,825 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-30 23:33:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-30 23:33:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-04-30 23:33:45,843 INFO L511 BasicCegarLoop]: Found error trace [2021-04-30 23:33:45,843 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-30 23:33:45,844 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-30 23:33:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-30 23:33:45,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1267928218, now seen corresponding path program 1 times [2021-04-30 23:33:45,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-30 23:33:45,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314385070] [2021-04-30 23:33:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-30 23:33:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:33:46,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:46,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:46,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:46,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-04-30 23:33:46,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:46,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-30 23:33:46,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:46,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:46,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-30 23:33:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:33:46,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:46,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-30 23:33:46,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-04-30 23:33:46,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314385070] [2021-04-30 23:33:46,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314385070] provided 1 perfect and 0 imperfect interpolant sequences [2021-04-30 23:33:46,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-30 23:33:46,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-30 23:33:46,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472817193] [2021-04-30 23:33:46,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-30 23:33:46,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-30 23:33:46,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-30 23:33:46,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-30 23:33:46,237 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-30 23:33:47,024 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2021-04-30 23:33:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-30 23:33:47,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-04-30 23:33:47,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-30 23:33:47,029 INFO L225 Difference]: With dead ends: 59 [2021-04-30 23:33:47,029 INFO L226 Difference]: Without dead ends: 0 [2021-04-30 23:33:47,031 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-30 23:33:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-30 23:33:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-30 23:33:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-30 23:33:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-30 23:33:47,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-04-30 23:33:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-30 23:33:47,045 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-30 23:33:47,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:47,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-30 23:33:47,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-30 23:33:47,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-30 23:33:47,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-30 23:33:47,177 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-04-30 23:33:47,177 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-04-30 23:33:47,177 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-04-30 23:33:47,177 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-04-30 23:33:47,178 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_22_0~0 |old(~__tmp_22_0~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~__tmp_22_1~0 |old(~__tmp_22_1~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__tmp_25_1~0 |old(~__tmp_25_1~0)|) (= ~__tmp_31_0~0 |old(~__tmp_31_0~0)|) (= ~__tmp_28_0~0 |old(~__tmp_28_0~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__return_65~0 |old(~__return_65~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__tmp_25_0~0 |old(~__tmp_25_0~0)|)) [2021-04-30 23:33:47,178 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-04-30 23:33:47,178 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-04-30 23:33:47,178 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-30 23:33:47,178 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-30 23:33:47,178 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-04-30 23:33:47,178 INFO L198 CegarLoopUtils]: For program point L97(line 97) no Hoare annotation was computed. [2021-04-30 23:33:47,179 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 15 147) no Hoare annotation was computed. [2021-04-30 23:33:47,179 INFO L198 CegarLoopUtils]: For program point L56(lines 56 83) no Hoare annotation was computed. [2021-04-30 23:33:47,179 INFO L194 CegarLoopUtils]: At program point L52(lines 24 141) the Hoare annotation is: (<= 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))))))) [2021-04-30 23:33:47,180 INFO L201 CegarLoopUtils]: At program point L135(lines 35 140) the Hoare annotation is: true [2021-04-30 23:33:47,180 INFO L194 CegarLoopUtils]: At program point L61(lines 36 112) the Hoare annotation is: (<= 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))))))) [2021-04-30 23:33:47,180 INFO L201 CegarLoopUtils]: At program point L123(lines 35 140) the Hoare annotation is: true [2021-04-30 23:33:47,180 INFO L198 CegarLoopUtils]: For program point L24(lines 24 141) no Hoare annotation was computed. [2021-04-30 23:33:47,180 INFO L198 CegarLoopUtils]: For program point L45(lines 45 111) no Hoare annotation was computed. [2021-04-30 23:33:47,180 INFO L198 CegarLoopUtils]: For program point L95(lines 95 104) no Hoare annotation was computed. [2021-04-30 23:33:47,180 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 15 147) no Hoare annotation was computed. [2021-04-30 23:33:47,181 INFO L194 CegarLoopUtils]: At program point L42(lines 24 141) the Hoare annotation is: (<= 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))))))) [2021-04-30 23:33:47,181 INFO L198 CegarLoopUtils]: For program point L67(lines 67 82) no Hoare annotation was computed. [2021-04-30 23:33:47,181 INFO L198 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2021-04-30 23:33:47,181 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 15 147) the Hoare annotation is: (and (= |old(~__tmp_22_1~0)| ~__tmp_22_1~0) (= |old(~__tmp_22_0~0)| ~__tmp_22_0~0) (= |old(~__tmp_25_1~0)| ~__tmp_25_1~0) (= |old(~__return_65~0)| ~__return_65~0) (= |old(~__tmp_25_0~0)| ~__tmp_25_0~0) (= |old(~__tmp_31_0~0)| ~__tmp_31_0~0) (= |old(~__tmp_28_0~0)| ~__tmp_28_0~0)) [2021-04-30 23:33:47,181 INFO L198 CegarLoopUtils]: For program point L88(lines 88 110) no Hoare annotation was computed. [2021-04-30 23:33:47,181 INFO L198 CegarLoopUtils]: For program point L22(lines 22 146) no Hoare annotation was computed. [2021-04-30 23:33:47,182 INFO L198 CegarLoopUtils]: For program point L117(lines 117 139) no Hoare annotation was computed. [2021-04-30 23:33:47,182 INFO L198 CegarLoopUtils]: For program point L47(lines 47 84) no Hoare annotation was computed. [2021-04-30 23:33:47,182 INFO L201 CegarLoopUtils]: At program point L138(lines 16 147) the Hoare annotation is: true [2021-04-30 23:33:47,182 INFO L198 CegarLoopUtils]: For program point L35(lines 35 140) no Hoare annotation was computed. [2021-04-30 23:33:47,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 11:33:47 BoogieIcfgContainer [2021-04-30 23:33:47,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-30 23:33:47,203 INFO L168 Benchmark]: Toolchain (without parser) took 2104.11 ms. Allocated memory is still 201.3 MB. Free memory was 166.7 MB in the beginning and 144.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:47,205 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 201.3 MB. Free memory is still 182.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-30 23:33:47,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.65 ms. Allocated memory is still 201.3 MB. Free memory was 166.5 MB in the beginning and 184.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:47,207 INFO L168 Benchmark]: Boogie Preprocessor took 45.65 ms. Allocated memory is still 201.3 MB. Free memory was 184.3 MB in the beginning and 182.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:47,208 INFO L168 Benchmark]: RCFGBuilder took 348.38 ms. Allocated memory is still 201.3 MB. Free memory was 182.7 MB in the beginning and 164.8 MB in the end (delta: 18.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:47,208 INFO L168 Benchmark]: TraceAbstraction took 1441.87 ms. Allocated memory is still 201.3 MB. Free memory was 164.8 MB in the beginning and 144.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:47,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 201.3 MB. Free memory is still 182.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 263.65 ms. Allocated memory is still 201.3 MB. Free memory was 166.5 MB in the beginning and 184.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.65 ms. Allocated memory is still 201.3 MB. Free memory was 184.3 MB in the beginning and 182.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 348.38 ms. Allocated memory is still 201.3 MB. Free memory was 182.7 MB in the beginning and 164.8 MB in the end (delta: 18.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1441.87 ms. Allocated memory is still 201.3 MB. Free memory was 164.8 MB in the beginning and 144.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 97]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1223.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.3ms, AutomataDifference: 803.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 129.6ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28 SDtfs, 17 SDslu, 32 SDs, 0 SdLazy, 63 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 704.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 205 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 17.9ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 101.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 19.7ms SsaConstructionTime, 107.6ms SatisfiabilityAnalysisTime, 197.6ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 231 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 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) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 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) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 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) RESULT: Ultimate proved your program to be correct! Received shutdown request...