java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 19:01:41,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 19:01:41,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 19:01:41,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 19:01:41,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 19:01:41,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 19:01:41,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 19:01:41,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 19:01:41,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 19:01:41,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 19:01:41,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 19:01:41,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 19:01:41,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 19:01:41,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 19:01:41,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 19:01:41,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 19:01:41,990 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 19:01:41,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 19:01:41,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 19:01:41,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 19:01:41,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 19:01:41,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 19:01:41,999 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-26 19:01:42,006 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 19:01:42,021 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 19:01:42,021 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 19:01:42,022 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 19:01:42,022 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 19:01:42,022 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 19:01:42,023 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 19:01:42,023 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 19:01:42,023 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 19:01:42,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 19:01:42,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 19:01:42,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 19:01:42,024 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 19:01:42,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 19:01:42,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 19:01:42,026 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 19:01:42,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 19:01:42,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 19:01:42,027 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 19:01:42,027 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 19:01:42,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 19:01:42,027 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 19:01:42,029 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 19:01:42,029 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 19:01:42,071 INFO ]: Repository-Root is: /tmp [2018-06-26 19:01:42,088 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 19:01:42,094 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 19:01:42,095 INFO ]: Initializing SmtParser... [2018-06-26 19:01:42,096 INFO ]: SmtParser initialized [2018-06-26 19:01:42,096 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn.smt2 [2018-06-26 19:01:42,097 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-26 19:01:42,185 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@2f95a655 [2018-06-26 19:01:42,611 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn.smt2 [2018-06-26 19:01:42,615 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 19:01:42,621 INFO ]: Walking toolchain with 5 elements. [2018-06-26 19:01:42,622 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 19:01:42,622 INFO ]: Initializing ChcToBoogie... [2018-06-26 19:01:42,622 INFO ]: ChcToBoogie initialized [2018-06-26 19:01:42,626 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,723 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42 Unit [2018-06-26 19:01:42,723 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 19:01:42,724 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 19:01:42,724 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 19:01:42,724 INFO ]: Boogie Preprocessor initialized [2018-06-26 19:01:42,749 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,749 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,777 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,777 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,794 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,796 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,799 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... [2018-06-26 19:01:42,816 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 19:01:42,817 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 19:01:42,817 INFO ]: Initializing RCFGBuilder... [2018-06-26 19:01:42,817 INFO ]: RCFGBuilder initialized [2018-06-26 19:01:42,818 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-26 19:01:42,849 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 19:01:42,849 INFO ]: Found specification of procedure gotoProc [2018-06-26 19:01:42,849 INFO ]: Found implementation of procedure gotoProc [2018-06-26 19:01:42,849 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 19:01:42,849 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 19:01:42,849 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 19:01:43,475 INFO ]: Using library mode [2018-06-26 19:01:43,476 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 07:01:43 BoogieIcfgContainer [2018-06-26 19:01:43,476 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 19:01:43,477 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 19:01:43,477 INFO ]: Initializing BlockEncodingV2... [2018-06-26 19:01:43,478 INFO ]: BlockEncodingV2 initialized [2018-06-26 19:01:43,478 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 07:01:43" (1/1) ... [2018-06-26 19:01:43,499 INFO ]: Initial Icfg 11 locations, 29 edges [2018-06-26 19:01:43,501 INFO ]: Using Remove infeasible edges [2018-06-26 19:01:43,501 INFO ]: Using Maximize final states [2018-06-26 19:01:43,502 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 19:01:43,502 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 19:01:43,506 INFO ]: Using Remove sink states [2018-06-26 19:01:43,507 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 19:01:43,507 INFO ]: Using Use SBE [2018-06-26 19:01:43,545 INFO ]: SBE split 8 edges [2018-06-26 19:01:43,550 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-26 19:01:43,554 INFO ]: 0 new accepting states [2018-06-26 19:01:43,812 INFO ]: Removed 18 edges and 2 locations by large block encoding [2018-06-26 19:01:43,814 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 19:01:43,815 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 19:01:43,815 INFO ]: 0 new accepting states [2018-06-26 19:01:43,815 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 19:01:43,815 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 19:01:43,816 INFO ]: Encoded RCFG 7 locations, 32 edges [2018-06-26 19:01:43,818 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 07:01:43 BasicIcfg [2018-06-26 19:01:43,818 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 19:01:43,819 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 19:01:43,819 INFO ]: Initializing TraceAbstraction... [2018-06-26 19:01:43,826 INFO ]: TraceAbstraction initialized [2018-06-26 19:01:43,827 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 07:01:42" (1/4) ... [2018-06-26 19:01:43,827 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8f9389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 07:01:43, skipping insertion in model container [2018-06-26 19:01:43,828 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 07:01:42" (2/4) ... [2018-06-26 19:01:43,828 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8f9389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 07:01:43, skipping insertion in model container [2018-06-26 19:01:43,828 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 07:01:43" (3/4) ... [2018-06-26 19:01:43,828 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8f9389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 07:01:43, skipping insertion in model container [2018-06-26 19:01:43,828 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 07:01:43" (4/4) ... [2018-06-26 19:01:43,830 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 19:01:43,839 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 19:01:43,857 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 19:01:43,909 INFO ]: Using default assertion order modulation [2018-06-26 19:01:43,909 INFO ]: Interprodecural is true [2018-06-26 19:01:43,909 INFO ]: Hoare is false [2018-06-26 19:01:43,909 INFO ]: Compute interpolants for FPandBP [2018-06-26 19:01:43,909 INFO ]: Backedges is TWOTRACK [2018-06-26 19:01:43,909 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 19:01:43,909 INFO ]: Difference is false [2018-06-26 19:01:43,909 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 19:01:43,910 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 19:01:43,921 INFO ]: Start isEmpty. Operand 7 states. [2018-06-26 19:01:43,931 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 19:01:43,931 INFO ]: Found error trace [2018-06-26 19:01:43,934 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 19:01:43,934 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 19:01:43,939 INFO ]: Analyzing trace with hash 38400512, now seen corresponding path program 1 times [2018-06-26 19:01:43,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 19:01:43,941 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 19:01:43,988 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 19:01:43,988 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 19:01:43,988 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 19:01:44,038 INFO ]: Conjunction of SSA is sat [2018-06-26 19:01:44,042 INFO ]: Counterexample might be feasible [2018-06-26 19:01:44,055 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 19:01:44,057 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 07:01:44 BasicIcfg [2018-06-26 19:01:44,057 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 19:01:44,057 INFO ]: Toolchain (without parser) took 1441.69 ms. Allocated memory is still 309.3 MB. Free memory was 255.7 MB in the beginning and 205.8 MB in the end (delta: 49.9 MB). Peak memory consumption was 49.9 MB. Max. memory is 3.6 GB. [2018-06-26 19:01:44,059 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 19:01:44,060 INFO ]: ChcToBoogie took 101.55 ms. Allocated memory is still 309.3 MB. Free memory was 255.7 MB in the beginning and 253.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 19:01:44,060 INFO ]: Boogie Preprocessor took 92.58 ms. Allocated memory is still 309.3 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 19:01:44,061 INFO ]: RCFGBuilder took 659.23 ms. Allocated memory is still 309.3 MB. Free memory was 251.7 MB in the beginning and 227.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 3.6 GB. [2018-06-26 19:01:44,061 INFO ]: BlockEncodingV2 took 341.08 ms. Allocated memory is still 309.3 MB. Free memory was 227.8 MB in the beginning and 215.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-26 19:01:44,062 INFO ]: TraceAbstraction took 237.34 ms. Allocated memory is still 309.3 MB. Free memory was 215.8 MB in the beginning and 205.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-26 19:01:44,066 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 29 edges - StatisticsResult: Encoded RCFG 7 locations, 32 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 101.55 ms. Allocated memory is still 309.3 MB. Free memory was 255.7 MB in the beginning and 253.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 92.58 ms. Allocated memory is still 309.3 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 659.23 ms. Allocated memory is still 309.3 MB. Free memory was 251.7 MB in the beginning and 227.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 341.08 ms. Allocated memory is still 309.3 MB. Free memory was 227.8 MB in the beginning and 215.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 237.34 ms. Allocated memory is still 309.3 MB. Free memory was 215.8 MB in the beginning and 205.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume ((((!(hbv_False_1_Array_Int_Int[hbv_False_2_Int] == 0) && !(hbv_False_1_Array_Int_Int[hbv_False_3_Int] == 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int] == hbv_False_1_Array_Int_Int[hbv_False_3_Int])) && !(0 == hbv_False_4_Array_Int_Int[hbv_False_5_Int])) && !(0 == hbv_False_4_Array_Int_Int[hbv_False_6_Int + 0])) && hbv_False_4_Array_Int_Int[hbv_False_5_Int] == hbv_False_4_Array_Int_Int[hbv_False_6_Int + 0]; [L0] hhv_INV_MAIN_0_0_Int, hhv_INV_MAIN_0_1_Int, hhv_INV_MAIN_0_2_Int, hhv_INV_MAIN_0_3_Int, hhv_INV_MAIN_0_4_Int, hhv_INV_MAIN_0_5_Int, hhv_INV_MAIN_0_6_Int, hhv_INV_MAIN_0_7_Int, hhv_INV_MAIN_0_8_Int, hhv_INV_MAIN_0_9_Int := hbv_False_3_Int, hbv_False_2_Int, hbv_False_7_Int, skolem5(hbv_False_7_Int, hbv_False_5_Int, hbv_False_3_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_1_Array_Int_Int, hbv_False_6_Int, hbv_False_4_Array_Int_Int), hbv_False_1_Array_Int_Int[skolem5(hbv_False_7_Int, hbv_False_5_Int, hbv_False_3_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_1_Array_Int_Int, hbv_False_6_Int, hbv_False_4_Array_Int_Int)], hbv_False_8_Int, hbv_False_6_Int, hbv_False_5_Int, skolem6(hbv_False_7_Int, hbv_False_5_Int, hbv_False_3_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_1_Array_Int_Int, hbv_False_6_Int, hbv_False_4_Array_Int_Int), hbv_False_4_Array_Int_Int[skolem6(hbv_False_7_Int, hbv_False_5_Int, hbv_False_3_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_1_Array_Int_Int, hbv_False_6_Int, hbv_False_4_Array_Int_Int)]; [L0] havoc hbv_False_7_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_1_Array_Int_Int, hbv_False_8_Int, hbv_False_4_Array_Int_Int, hbv_False_6_Int, hbv_False_5_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 7 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_19-01-44-077.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_19-01-44-077.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_19-01-44-077.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_19-01-44-077.csv Received shutdown request...