/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:06:09,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:06:09,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:06:09,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:06:09,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:06:09,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:06:09,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:06:09,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:06:09,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:06:09,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:06:09,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:06:09,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:06:09,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:06:09,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:06:09,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:06:09,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:06:09,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:06:09,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:06:09,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:06:09,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:06:09,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:06:09,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:06:09,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:06:09,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:06:09,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:06:09,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:06:09,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:06:09,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:06:09,121 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 [2020-07-10 15:06:09,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:06:09,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:06:09,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:06:09,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:06:09,161 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:06:09,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:06:09,162 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:06:09,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:06:09,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:06:09,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:06:09,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:06:09,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:06:09,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:06:09,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:06:09,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:06:09,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:06:09,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:06:09,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:06:09,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:06:09,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:06:09,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:06:09,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:06:09,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:06:09,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:06:09,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:06:09,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:06:09,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:06:09,467 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:06:09,468 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test01.c [2020-07-10 15:06:09,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a3534ac/2d804cbbda9d48598f9df0337483b6ab/FLAGfa087630b [2020-07-10 15:06:10,025 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:06:10,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test01.c [2020-07-10 15:06:10,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a3534ac/2d804cbbda9d48598f9df0337483b6ab/FLAGfa087630b [2020-07-10 15:06:10,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a3534ac/2d804cbbda9d48598f9df0337483b6ab [2020-07-10 15:06:10,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:06:10,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:06:10,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:10,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:06:10,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:06:10,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4635f466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10, skipping insertion in model container [2020-07-10 15:06:10,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:06:10,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:06:10,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:10,630 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:06:10,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:06:10,664 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:06:10,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10 WrapperNode [2020-07-10 15:06:10,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:06:10,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:06:10,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:06:10,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:06:10,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (1/1) ... [2020-07-10 15:06:10,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:06:10,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:06:10,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:06:10,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:06:10,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (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 [2020-07-10 15:06:10,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:06:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:06:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:06:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:06:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:06:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:06:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:06:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:06:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:06:11,103 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:06:11,104 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:06:11,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:11 BoogieIcfgContainer [2020-07-10 15:06:11,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:06:11,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:06:11,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:06:11,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:06:11,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:06:10" (1/3) ... [2020-07-10 15:06:11,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fccccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:11, skipping insertion in model container [2020-07-10 15:06:11,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:06:10" (2/3) ... [2020-07-10 15:06:11,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fccccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:06:11, skipping insertion in model container [2020-07-10 15:06:11,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:06:11" (3/3) ... [2020-07-10 15:06:11,135 INFO L109 eAbstractionObserver]: Analyzing ICFG test01.c [2020-07-10 15:06:11,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:06:11,156 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:06:11,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:06:11,193 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:06:11,193 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:06:11,194 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:06:11,194 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:06:11,194 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:06:11,194 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:06:11,194 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:06:11,194 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:06:11,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-07-10 15:06:11,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-10 15:06:11,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:06:11,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:06:11,221 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:06:11,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:06:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1160017433, now seen corresponding path program 1 times [2020-07-10 15:06:11,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:06:11,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876159395] [2020-07-10 15:06:11,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:06:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:06:11,476 INFO L280 TraceCheckUtils]: 0: Hoare triple {22#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {16#true} is VALID [2020-07-10 15:06:11,476 INFO L280 TraceCheckUtils]: 1: Hoare triple {16#true} assume true; {16#true} is VALID [2020-07-10 15:06:11,477 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {16#true} {16#true} #15#return; {16#true} is VALID [2020-07-10 15:06:11,480 INFO L263 TraceCheckUtils]: 0: Hoare triple {16#true} call ULTIMATE.init(); {22#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:06:11,481 INFO L280 TraceCheckUtils]: 1: Hoare triple {22#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {16#true} is VALID [2020-07-10 15:06:11,481 INFO L280 TraceCheckUtils]: 2: Hoare triple {16#true} assume true; {16#true} is VALID [2020-07-10 15:06:11,482 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16#true} {16#true} #15#return; {16#true} is VALID [2020-07-10 15:06:11,482 INFO L263 TraceCheckUtils]: 4: Hoare triple {16#true} call #t~ret0 := main(); {16#true} is VALID [2020-07-10 15:06:11,485 INFO L280 TraceCheckUtils]: 5: Hoare triple {16#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4);call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4);~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset;~p2~0.base, ~p2~0.offset := ~#b~0.base, ~#b~0.offset; {21#(not (= main_~p1~0.base main_~p2~0.base))} is VALID [2020-07-10 15:06:11,487 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#(not (= main_~p1~0.base main_~p2~0.base))} assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; {17#false} is VALID [2020-07-10 15:06:11,487 INFO L280 TraceCheckUtils]: 7: Hoare triple {17#false} assume !false; {17#false} is VALID [2020-07-10 15:06:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:06:11,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876159395] [2020-07-10 15:06:11,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:06:11,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 15:06:11,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274849006] [2020-07-10 15:06:11,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-07-10 15:06:11,500 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:06:11,504 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 15:06:11,534 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:06:11,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 15:06:11,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:06:11,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 15:06:11,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:06:11,549 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2020-07-10 15:06:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:11,668 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-07-10 15:06:11,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 15:06:11,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-07-10 15:06:11,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:06:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:06:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-07-10 15:06:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:06:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-07-10 15:06:11,688 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 16 transitions. [2020-07-10 15:06:11,721 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:06:11,728 INFO L225 Difference]: With dead ends: 17 [2020-07-10 15:06:11,729 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:06:11,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:06:11,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:06:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:06:11,756 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:06:11,757 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:11,757 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:11,757 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:11,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:11,758 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:06:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:06:11,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:11,759 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:06:11,759 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:11,759 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:06:11,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:06:11,760 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:06:11,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:06:11,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:11,761 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:06:11,761 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:06:11,761 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:06:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:06:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:06:11,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-07-10 15:06:11,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:06:11,764 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:06:11,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 15:06:11,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:06:11,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:06:11,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:06:11,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:06:11,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:06:11,826 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-10 15:06:11,826 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:06:11,826 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:06:11,826 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:06:11,826 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:06:11,827 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:06:11,827 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-07-10 15:06:11,827 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 4 17) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-10 15:06:11,827 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 17) no Hoare annotation was computed. [2020-07-10 15:06:11,828 INFO L264 CegarLoopResult]: At program point L10(lines 4 17) the Hoare annotation is: false [2020-07-10 15:06:11,828 INFO L268 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-07-10 15:06:11,828 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 17) no Hoare annotation was computed. [2020-07-10 15:06:11,833 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:06:11,835 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:06:11,836 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:06:11,836 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:06:11,837 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:06:11,837 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-10 15:06:11,837 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:06:11,838 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:06:11,838 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-10 15:06:11,838 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:06:11,838 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:06:11,838 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:06:11,839 INFO L163 areAnnotationChecker]: CFG has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:06:11,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:06:11 BoogieIcfgContainer [2020-07-10 15:06:11,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:06:11,851 INFO L168 Benchmark]: Toolchain (without parser) took 1421.78 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 104.3 MB in the beginning and 120.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:11,852 INFO L168 Benchmark]: CDTParser took 1.46 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 15:06:11,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.58 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 94.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:11,854 INFO L168 Benchmark]: Boogie Preprocessor took 117.44 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 94.7 MB in the beginning and 182.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:11,855 INFO L168 Benchmark]: RCFGBuilder took 325.60 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 167.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:11,856 INFO L168 Benchmark]: TraceAbstraction took 721.82 ms. Allocated memory is still 203.4 MB. Free memory was 166.6 MB in the beginning and 120.4 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:06:11,860 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 1.46 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.58 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 94.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.44 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 94.7 MB in the beginning and 182.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.60 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 167.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 721.82 ms. Allocated memory is still 203.4 MB. Free memory was 166.6 MB in the beginning and 120.4 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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: 4]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 2 SDslu, 10 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...