/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 0.1.25-8fc6572 [2020-07-11 02:33:31,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 02:33:31,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 02:33:31,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 02:33:31,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 02:33:31,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 02:33:31,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 02:33:31,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 02:33:31,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 02:33:31,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 02:33:31,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 02:33:31,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 02:33:31,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 02:33:31,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 02:33:31,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 02:33:31,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 02:33:31,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 02:33:31,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 02:33:31,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 02:33:31,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 02:33:31,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 02:33:31,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 02:33:31,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 02:33:31,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 02:33:31,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-11 02:33:31,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 02:33:31,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 02:33:31,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 02:33:31,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 02:33:31,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 02:33:31,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 02:33:31,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 02:33:31,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 02:33:31,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 02:33:31,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 02:33:31,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 02:33:31,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 02:33:31,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 02:33:31,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 02:33:31,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 02:33:31,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 02:33:31,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 02:33:31,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 02:33:31,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 02:33:31,906 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 02:33:31,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 02:33:31,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 02:33:31,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 02:33:31,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 02:33:31,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 02:33:31,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 02:33:31,907 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 [2020-07-11 02:33:32,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 02:33:32,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 02:33:32,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 02:33:32,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 02:33:32,211 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 02:33:32,212 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-07-11 02:33:32,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c664e64b/f4ac5424087546cd99331d02515bacef/FLAGab447eafa [2020-07-11 02:33:32,683 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 02:33:32,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-07-11 02:33:32,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c664e64b/f4ac5424087546cd99331d02515bacef/FLAGab447eafa [2020-07-11 02:33:33,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c664e64b/f4ac5424087546cd99331d02515bacef [2020-07-11 02:33:33,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 02:33:33,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 02:33:33,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 02:33:33,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 02:33:33,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 02:33:33,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bec56e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33, skipping insertion in model container [2020-07-11 02:33:33,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 02:33:33,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 02:33:33,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 02:33:33,346 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 02:33:33,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 02:33:33,376 INFO L208 MainTranslator]: Completed translation [2020-07-11 02:33:33,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33 WrapperNode [2020-07-11 02:33:33,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 02:33:33,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 02:33:33,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 02:33:33,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 02:33:33,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (1/1) ... [2020-07-11 02:33:33,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 02:33:33,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 02:33:33,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 02:33:33,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 02:33:33,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (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 [2020-07-11 02:33:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 02:33:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 02:33:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-11 02:33:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 02:33:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 02:33:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 02:33:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-11 02:33:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 02:33:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 02:33:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 02:33:33,775 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 02:33:33,775 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-11 02:33:33,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 02:33:33 BoogieIcfgContainer [2020-07-11 02:33:33,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 02:33:33,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 02:33:33,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 02:33:33,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 02:33:33,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 02:33:33" (1/3) ... [2020-07-11 02:33:33,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4669b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 02:33:33, skipping insertion in model container [2020-07-11 02:33:33,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:33:33" (2/3) ... [2020-07-11 02:33:33,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4669b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 02:33:33, skipping insertion in model container [2020-07-11 02:33:33,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 02:33:33" (3/3) ... [2020-07-11 02:33:33,792 INFO L109 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2020-07-11 02:33:33,813 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 02:33:33,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 02:33:33,860 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 02:33:33,903 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 02:33:33,903 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 02:33:33,904 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 02:33:33,904 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 02:33:33,904 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 02:33:33,904 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 02:33:33,904 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 02:33:33,905 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 02:33:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-11 02:33:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-11 02:33:33,932 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:33:33,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 02:33:33,934 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:33:33,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:33:33,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times [2020-07-11 02:33:33,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:33:33,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469832843] [2020-07-11 02:33:33,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:33:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:33:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:33:34,089 INFO L280 TraceCheckUtils]: 0: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-11 02:33:34,090 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25#true} {25#true} #36#return; {25#true} is VALID [2020-07-11 02:33:34,092 INFO L263 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {25#true} is VALID [2020-07-11 02:33:34,093 INFO L280 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-11 02:33:34,093 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #36#return; {25#true} is VALID [2020-07-11 02:33:34,093 INFO L263 TraceCheckUtils]: 3: Hoare triple {25#true} call #t~ret1 := main(); {25#true} is VALID [2020-07-11 02:33:34,094 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#true} ~x~0 := 5; {25#true} is VALID [2020-07-11 02:33:34,095 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#true} assume !true; {26#false} is VALID [2020-07-11 02:33:34,096 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 [2020-07-11 02:33:34,096 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2020-07-11 02:33:34,096 INFO L280 TraceCheckUtils]: 8: Hoare triple {26#false} assume 0 == ~cond; {26#false} is VALID [2020-07-11 02:33:34,097 INFO L280 TraceCheckUtils]: 9: Hoare triple {26#false} assume !false; {26#false} is VALID [2020-07-11 02:33:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 02:33:34,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469832843] [2020-07-11 02:33:34,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:33:34,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-11 02:33:34,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352411186] [2020-07-11 02:33:34,107 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-11 02:33:34,110 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:33:34,114 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-11 02:33:34,138 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:33:34,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-11 02:33:34,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:33:34,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-11 02:33:34,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-11 02:33:34,150 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-11 02:33:34,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:33:34,236 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-11 02:33:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-11 02:33:34,236 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-11 02:33:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:33:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-11 02:33:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 37 transitions. [2020-07-11 02:33:34,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-11 02:33:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 37 transitions. [2020-07-11 02:33:34,252 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 37 transitions. [2020-07-11 02:33:34,330 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:33:34,342 INFO L225 Difference]: With dead ends: 34 [2020-07-11 02:33:34,343 INFO L226 Difference]: Without dead ends: 15 [2020-07-11 02:33:34,356 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 [2020-07-11 02:33:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-11 02:33:34,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-11 02:33:34,417 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:33:34,418 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-11 02:33:34,418 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-11 02:33:34,419 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-11 02:33:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:33:34,425 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-11 02:33:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-11 02:33:34,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:33:34,426 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:33:34,426 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-11 02:33:34,427 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-11 02:33:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:33:34,435 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-11 02:33:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-11 02:33:34,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:33:34,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:33:34,438 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:33:34,439 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:33:34,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-11 02:33:34,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-11 02:33:34,445 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-07-11 02:33:34,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:33:34,446 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-11 02:33:34,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-11 02:33:34,447 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 15 transitions. [2020-07-11 02:33:34,489 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:33:34,489 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-11 02:33:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-11 02:33:34,490 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:33:34,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 02:33:34,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 02:33:34,491 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:33:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:33:34,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times [2020-07-11 02:33:34,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:33:34,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595430901] [2020-07-11 02:33:34,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:33:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 02:33:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 02:33:34,555 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-11 02:33:34,555 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-11 02:33:34,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 02:33:34,572 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-11 02:33:34,572 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 02:33:34,572 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 02:33:34,572 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-11 02:33:34,573 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-11 02:33:34,573 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-11 02:33:34,573 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 02:33:34,573 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 02:33:34,573 WARN L170 areAnnotationChecker]: L11-5 has no Hoare annotation [2020-07-11 02:33:34,573 WARN L170 areAnnotationChecker]: L11-5 has no Hoare annotation [2020-07-11 02:33:34,574 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-11 02:33:34,574 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-11 02:33:34,574 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-11 02:33:34,574 WARN L170 areAnnotationChecker]: L11-6 has no Hoare annotation [2020-07-11 02:33:34,574 WARN L170 areAnnotationChecker]: L11-6 has no Hoare annotation [2020-07-11 02:33:34,574 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-11 02:33:34,575 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-11 02:33:34,575 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-11 02:33:34,575 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-11 02:33:34,575 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-11 02:33:34,575 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-11 02:33:34,576 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-11 02:33:34,576 WARN L170 areAnnotationChecker]: L11-4 has no Hoare annotation [2020-07-11 02:33:34,576 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-11 02:33:34,576 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-11 02:33:34,576 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-11 02:33:34,577 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-11 02:33:34,577 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. [2020-07-11 02:33:34,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 02:33:34 BoogieIcfgContainer [2020-07-11 02:33:34,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 02:33:34,584 INFO L168 Benchmark]: Toolchain (without parser) took 1463.93 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 115.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2020-07-11 02:33:34,584 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 134.7 MB. Free memory is still 117.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-11 02:33:34,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.55 ms. Allocated memory is still 134.7 MB. Free memory was 99.9 MB in the beginning and 90.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-11 02:33:34,586 INFO L168 Benchmark]: Boogie Preprocessor took 119.71 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.3 MB in the beginning and 178.0 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-07-11 02:33:34,587 INFO L168 Benchmark]: RCFGBuilder took 281.88 ms. Allocated memory is still 199.2 MB. Free memory was 178.0 MB in the beginning and 162.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-07-11 02:33:34,588 INFO L168 Benchmark]: TraceAbstraction took 799.93 ms. Allocated memory is still 199.2 MB. Free memory was 162.7 MB in the beginning and 115.9 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2020-07-11 02:33:34,594 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 0.19 ms. Allocated memory is still 134.7 MB. Free memory is still 117.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.55 ms. Allocated memory is still 134.7 MB. Free memory was 99.9 MB in the beginning and 90.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.71 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.3 MB in the beginning and 178.0 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 281.88 ms. Allocated memory is still 199.2 MB. Free memory was 178.0 MB in the beginning and 162.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 799.93 ms. Allocated memory is still 199.2 MB. Free memory was 162.7 MB in the beginning and 115.9 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 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...