/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:39:58,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:39:58,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:39:58,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:39:58,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:39:58,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:39:58,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:39:58,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:39:58,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:39:58,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:39:58,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:39:58,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:39:58,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:39:58,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:39:58,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:39:58,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:39:58,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:39:58,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:39:58,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:39:58,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:39:58,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:39:58,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:39:58,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:39:58,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:39:58,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:39:58,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 06:39:58,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 06:39:58,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 06:39:58,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 06:39:58,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 06:39:58,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 06:39:58,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 06:39:58,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 06:39:58,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:39:58,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:39:58,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:39:58,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 06:39:58,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:39:58,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:39:58,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:39:58,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:39:58,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:39:58,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:39:58,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:39:58,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:39:58,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:39:58,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:39:58,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:39:58,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:39:58,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:39:58,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:39:58,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:39:58,690 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:39:58,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:39:58,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:39:58,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:39:58,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:39:58,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:39:58,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:39:58,692 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 06:39:59,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:39:59,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:39:59,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:39:59,024 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:39:59,025 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:39:59,025 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-07-18 06:39:59,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65f70bb0/dfb48b2ed73d4f3e8e439d2af79e6cfe/FLAG49bc7c934 [2020-07-18 06:39:59,585 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:39:59,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-07-18 06:39:59,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65f70bb0/dfb48b2ed73d4f3e8e439d2af79e6cfe/FLAG49bc7c934 [2020-07-18 06:39:59,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65f70bb0/dfb48b2ed73d4f3e8e439d2af79e6cfe [2020-07-18 06:39:59,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:39:59,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:39:59,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:39:59,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:39:59,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:39:59,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:39:59" (1/1) ... [2020-07-18 06:39:59,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4386dceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:59, skipping insertion in model container [2020-07-18 06:39:59,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:39:59" (1/1) ... [2020-07-18 06:39:59,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:40:00,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:40:00,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:40:00,174 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:40:00,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:40:00,207 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:40:00,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00 WrapperNode [2020-07-18 06:40:00,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:40:00,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:40:00,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:40:00,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:40:00,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:40:00,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:40:00,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:40:00,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:40:00,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (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 [2020-07-18 06:40:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:40:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:40:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:40:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:40:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:40:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:40:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:40:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:40:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:40:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:40:00,636 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:40:00,636 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 06:40:00,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:40:00 BoogieIcfgContainer [2020-07-18 06:40:00,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:40:00,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:40:00,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:40:00,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:40:00,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:39:59" (1/3) ... [2020-07-18 06:40:00,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dca8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:40:00, skipping insertion in model container [2020-07-18 06:40:00,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (2/3) ... [2020-07-18 06:40:00,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dca8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:40:00, skipping insertion in model container [2020-07-18 06:40:00,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:40:00" (3/3) ... [2020-07-18 06:40:00,659 INFO L109 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2020-07-18 06:40:00,690 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:40:00,701 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:40:00,741 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:40:00,775 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:40:00,775 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:40:00,776 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:40:00,776 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:40:00,776 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:40:00,776 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:40:00,777 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:40:00,777 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:40:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-18 06:40:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-18 06:40:00,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:40:00,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:40:00,805 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:40:00,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:40:00,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times [2020-07-18 06:40:00,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:40:00,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632039666] [2020-07-18 06:40:00,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:40:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:40:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:40:00,945 INFO L280 TraceCheckUtils]: 0: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-18 06:40:00,946 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25#true} {25#true} #36#return; {25#true} is VALID [2020-07-18 06:40:00,948 INFO L263 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {25#true} is VALID [2020-07-18 06:40:00,948 INFO L280 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-18 06:40:00,949 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #36#return; {25#true} is VALID [2020-07-18 06:40:00,949 INFO L263 TraceCheckUtils]: 3: Hoare triple {25#true} call #t~ret1 := main(); {25#true} is VALID [2020-07-18 06:40:00,949 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#true} ~x~0 := 5; {25#true} is VALID [2020-07-18 06:40:00,959 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#true} assume !true; {26#false} is VALID [2020-07-18 06:40:00,960 INFO L263 TraceCheckUtils]: 6: Hoare triple {26#false} call __VERIFIER_assert((if 5 == ~bitwiseAnd(~x~0, 5) % 4294967296 then 1 else 0)); {26#false} is VALID [2020-07-18 06:40:00,961 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2020-07-18 06:40:00,961 INFO L280 TraceCheckUtils]: 8: Hoare triple {26#false} assume 0 == ~cond; {26#false} is VALID [2020-07-18 06:40:00,961 INFO L280 TraceCheckUtils]: 9: Hoare triple {26#false} assume !false; {26#false} is VALID [2020-07-18 06:40:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 06:40:00,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632039666] [2020-07-18 06:40:00,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:40:00,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-18 06:40:00,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411474040] [2020-07-18 06:40:00,973 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-18 06:40:00,976 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:40:00,980 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-18 06:40:01,005 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:40:01,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-18 06:40:01,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:40:01,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-18 06:40:01,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-18 06:40:01,021 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-18 06:40:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:40:01,124 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-18 06:40:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-18 06:40:01,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-18 06:40:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:40:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-18 06:40:01,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 37 transitions. [2020-07-18 06:40:01,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-18 06:40:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 37 transitions. [2020-07-18 06:40:01,140 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 37 transitions. [2020-07-18 06:40:01,227 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:40:01,239 INFO L225 Difference]: With dead ends: 34 [2020-07-18 06:40:01,240 INFO L226 Difference]: Without dead ends: 15 [2020-07-18 06:40:01,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-18 06:40:01,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-18 06:40:01,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-18 06:40:01,297 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:40:01,298 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-18 06:40:01,298 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-18 06:40:01,299 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-18 06:40:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:40:01,303 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-18 06:40:01,303 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-18 06:40:01,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:40:01,304 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:40:01,304 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-18 06:40:01,304 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-18 06:40:01,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:40:01,308 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-18 06:40:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-18 06:40:01,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:40:01,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:40:01,309 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:40:01,309 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:40:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-18 06:40:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-18 06:40:01,314 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-07-18 06:40:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:40:01,315 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-18 06:40:01,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-18 06:40:01,315 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 15 transitions. [2020-07-18 06:40:01,343 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:40:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-18 06:40:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-18 06:40:01,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:40:01,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:40:01,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:40:01,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:40:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:40:01,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times [2020-07-18 06:40:01,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:40:01,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096997065] [2020-07-18 06:40:01,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:40:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 06:40:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 06:40:01,407 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 06:40:01,408 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 06:40:01,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 06:40:01,429 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 06:40:01,429 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 06:40:01,430 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 06:40:01,430 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 06:40:01,430 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-18 06:40:01,430 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 06:40:01,430 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 06:40:01,431 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 06:40:01,431 WARN L170 areAnnotationChecker]: L11-5 has no Hoare annotation [2020-07-18 06:40:01,431 WARN L170 areAnnotationChecker]: L11-5 has no Hoare annotation [2020-07-18 06:40:01,431 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:40:01,431 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 06:40:01,432 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 06:40:01,432 WARN L170 areAnnotationChecker]: L11-6 has no Hoare annotation [2020-07-18 06:40:01,432 WARN L170 areAnnotationChecker]: L11-6 has no Hoare annotation [2020-07-18 06:40:01,432 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-18 06:40:01,432 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-18 06:40:01,433 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-18 06:40:01,433 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-18 06:40:01,433 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-18 06:40:01,433 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-18 06:40:01,433 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-18 06:40:01,434 WARN L170 areAnnotationChecker]: L11-4 has no Hoare annotation [2020-07-18 06:40:01,434 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-18 06:40:01,434 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 06:40:01,434 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-18 06:40:01,434 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 06:40:01,435 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 06:40:01,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 06:40:01 BoogieIcfgContainer [2020-07-18 06:40:01,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 06:40:01,442 INFO L168 Benchmark]: Toolchain (without parser) took 1473.16 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 117.7 MB in the end (delta: -17.5 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,443 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 135.8 MB. Free memory was 118.0 MB in the beginning and 117.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.46 ms. Allocated memory is still 135.8 MB. Free memory was 99.8 MB in the beginning and 90.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,445 INFO L168 Benchmark]: Boogie Preprocessor took 121.59 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 89.9 MB in the beginning and 179.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,446 INFO L168 Benchmark]: RCFGBuilder took 309.13 ms. Allocated memory is still 199.2 MB. Free memory was 179.4 MB in the beginning and 163.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,447 INFO L168 Benchmark]: TraceAbstraction took 797.05 ms. Allocated memory is still 199.2 MB. Free memory was 163.7 MB in the beginning and 117.7 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 135.8 MB. Free memory was 118.0 MB in the beginning and 117.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 237.46 ms. Allocated memory is still 135.8 MB. Free memory was 99.8 MB in the beginning and 90.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.59 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 89.9 MB in the beginning and 179.4 MB in the end (delta: -89.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.13 ms. Allocated memory is still 199.2 MB. Free memory was 179.4 MB in the beginning and 163.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 797.05 ms. Allocated memory is still 199.2 MB. Free memory was 163.7 MB in the beginning and 117.7 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 14. Possible FailurePath: [L10] unsigned int x = 5; VAL [x=5] [L11] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, x=5] [L14] CALL __VERIFIER_assert((x & 5) == 5) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...