/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/bitvector/jain_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:58:20,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:58:20,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:58:20,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:58:20,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:58:20,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:58:20,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:58:20,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:58:20,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:58:20,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:58:20,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:58:20,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:58:20,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:58:20,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:58:20,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:58:20,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:58:20,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:58:20,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:58:20,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:58:20,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:58:20,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:58:20,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:58:20,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:58:20,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:58:20,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:58:20,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:58:20,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:58:20,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:58:20,373 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 [2020-11-06 21:58:20,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:58:20,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:58:20,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:58:20,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:58:20,403 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:58:20,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:58:20,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:58:20,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:58:20,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:58:20,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:58:20,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:58:20,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:58:20,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:58:20,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:58:20,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:58:20,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:58:20,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:58:20,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:58:20,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:58:20,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:58:20,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:58:20,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:58:20,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:58:20,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:58:20,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:58:20,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:58:20,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:58:20,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:58:20,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:58:20,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:58:20,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:58:20,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:58:20,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:58:20,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:58:20,804 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:58:20,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_1-1.c [2020-11-06 21:58:20,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bd2c4732/c087ba59861246a482845c47c2798f97/FLAG53f939d95 [2020-11-06 21:58:21,596 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:58:21,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_1-1.c [2020-11-06 21:58:21,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bd2c4732/c087ba59861246a482845c47c2798f97/FLAG53f939d95 [2020-11-06 21:58:21,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bd2c4732/c087ba59861246a482845c47c2798f97 [2020-11-06 21:58:21,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:58:21,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:58:21,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:58:21,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:58:21,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:58:21,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:21" (1/1) ... [2020-11-06 21:58:21,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16370b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:21, skipping insertion in model container [2020-11-06 21:58:21,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:21" (1/1) ... [2020-11-06 21:58:22,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:58:22,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:58:22,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:58:22,188 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:58:22,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:58:22,218 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:58:22,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22 WrapperNode [2020-11-06 21:58:22,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:58:22,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:58:22,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:58:22,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:58:22,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2020-11-06 21:58:22,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:58:22,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:58:22,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:58:22,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:58:22,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (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 [2020-11-06 21:58:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:58:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:58:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:58:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 21:58:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:58:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:58:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:58:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:58:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:58:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-06 21:58:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 21:58:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:58:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:58:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:58:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:58:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:58:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:58:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:58:22,602 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:58:22,603 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 21:58:22,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:22 BoogieIcfgContainer [2020-11-06 21:58:22,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:58:22,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:58:22,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:58:22,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:58:22,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:21" (1/3) ... [2020-11-06 21:58:22,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c73d446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:22, skipping insertion in model container [2020-11-06 21:58:22,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (2/3) ... [2020-11-06 21:58:22,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c73d446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:22, skipping insertion in model container [2020-11-06 21:58:22,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:22" (3/3) ... [2020-11-06 21:58:22,615 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_1-1.c [2020-11-06 21:58:22,639 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:58:22,643 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:58:22,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:58:22,716 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:58:22,716 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:58:22,717 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:58:22,717 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:58:22,717 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:58:22,717 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:58:22,717 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:58:22,717 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:58:22,738 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-06 21:58:22,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-06 21:58:22,744 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:58:22,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:58:22,745 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:58:22,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:58:22,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1199457490, now seen corresponding path program 1 times [2020-11-06 21:58:22,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:58:22,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376623349] [2020-11-06 21:58:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:58:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:23,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:58:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:58:23,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376623349] [2020-11-06 21:58:23,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:58:23,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 21:58:23,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613007670] [2020-11-06 21:58:23,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 21:58:23,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:58:23,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 21:58:23,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-06 21:58:23,354 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 7 states. [2020-11-06 21:58:23,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:58:23,835 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2020-11-06 21:58:23,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 21:58:23,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-11-06 21:58:23,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:58:23,851 INFO L225 Difference]: With dead ends: 39 [2020-11-06 21:58:23,851 INFO L226 Difference]: Without dead ends: 22 [2020-11-06 21:58:23,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-06 21:58:23,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-06 21:58:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-06 21:58:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-06 21:58:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-06 21:58:23,900 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2020-11-06 21:58:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:58:23,901 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-06 21:58:23,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 21:58:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-06 21:58:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-06 21:58:23,902 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:58:23,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:58:23,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:58:23,903 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:58:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:58:23,904 INFO L82 PathProgramCache]: Analyzing trace with hash -680978417, now seen corresponding path program 1 times [2020-11-06 21:58:23,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:58:23,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548055924] [2020-11-06 21:58:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:58:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:24,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:58:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:24,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 21:58:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:58:24,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548055924] [2020-11-06 21:58:24,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710285452] [2020-11-06 21:58:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 21:58:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:24,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-06 21:58:24,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 21:58:28,422 WARN L194 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 13 [2020-11-06 21:58:28,575 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-06 21:58:29,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 21:58:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 21:58:29,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 21:58:29,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 12 [2020-11-06 21:58:29,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122000648] [2020-11-06 21:58:29,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 21:58:29,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:58:29,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 21:58:29,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=102, Unknown=1, NotChecked=0, Total=132 [2020-11-06 21:58:29,139 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 12 states. [2020-11-06 21:58:31,303 WARN L194 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 43 [2020-11-06 21:58:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:58:31,454 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-11-06 21:58:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 21:58:31,455 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2020-11-06 21:58:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:58:31,456 INFO L225 Difference]: With dead ends: 21 [2020-11-06 21:58:31,456 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 21:58:31,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=57, Invalid=182, Unknown=1, NotChecked=0, Total=240 [2020-11-06 21:58:31,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 21:58:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 21:58:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 21:58:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 21:58:31,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-06 21:58:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:58:31,458 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 21:58:31,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 21:58:31,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 21:58:31,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 21:58:31,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-06 21:58:31,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 21:58:35,956 WARN L194 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 36 DAG size of output: 13 [2020-11-06 21:58:40,105 WARN L194 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2020-11-06 21:58:40,181 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-11-06 21:58:40,181 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-06 21:58:40,182 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-11-06 21:58:40,182 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-06 21:58:40,182 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 21:58:40,182 INFO L262 CegarLoopResult]: 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|)) [2020-11-06 21:58:40,182 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 21:58:40,183 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 21:58:40,183 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 21:58:40,183 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 21:58:40,183 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 21:58:40,183 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2020-11-06 21:58:40,183 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 12 27) no Hoare annotation was computed. [2020-11-06 21:58:40,184 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (let ((.cse0 (+ main_~y~0 1))) (<= .cse0 (* 2 (div .cse0 2)))) (not (= (mod main_~y~0 4294967296) 0))) [2020-11-06 21:58:40,184 INFO L262 CegarLoopResult]: At program point L23-1(lines 18 25) the Hoare annotation is: (and (let ((.cse0 (+ main_~y~0 1))) (<= .cse0 (* 2 (div .cse0 2)))) (not (= (mod main_~y~0 4294967296) 0))) [2020-11-06 21:58:40,184 INFO L266 CegarLoopResult]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2020-11-06 21:58:40,184 INFO L266 CegarLoopResult]: For program point mainFINAL(lines 12 27) no Hoare annotation was computed. [2020-11-06 21:58:40,184 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-11-06 21:58:40,184 INFO L266 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-11-06 21:58:40,184 INFO L262 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-11-06 21:58:40,185 INFO L266 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-11-06 21:58:40,185 INFO L266 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-11-06 21:58:40,185 INFO L266 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-11-06 21:58:40,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:58:40 BoogieIcfgContainer [2020-11-06 21:58:40,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:58:40,205 INFO L168 Benchmark]: Toolchain (without parser) took 18222.11 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 126.8 MB in the beginning and 95.8 MB in the end (delta: 31.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:40,207 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:58:40,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.62 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 117.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:40,212 INFO L168 Benchmark]: Boogie Preprocessor took 32.29 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:40,214 INFO L168 Benchmark]: RCFGBuilder took 349.82 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 104.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:40,217 INFO L168 Benchmark]: TraceAbstraction took 17592.91 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 103.6 MB in the beginning and 95.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:40,224 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 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 231.62 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 117.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.29 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 349.82 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 104.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17592.91 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 103.6 MB in the beginning and 95.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: y + 1 <= 2 * ((y + 1) / 2) && !(y % 4294967296 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 29 SDslu, 43 SDs, 0 SdLazy, 65 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 76 HoareAnnotationTreeSize, 14 FomulaSimplifications, 130 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 219 FormulaSimplificationTreeSizeReductionInter, 8.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 3194 SizeOfPredicates, 3 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/8 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...