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__strchr_1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:58:38,438 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:58:38,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:58:38,456 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:58:38,456 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:58:38,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:58:38,458 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:58:38,460 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:58:38,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:58:38,463 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:58:38,464 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:58:38,466 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:58:38,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:58:38,468 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:58:38,469 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:58:38,469 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:58:38,473 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:58:38,483 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:58:38,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:58:38,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:58:38,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:58:38,491 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:58:38,491 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:58:38,492 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:58:38,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:58:38,495 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:58:38,496 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:58:38,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:58:38,497 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:58:38,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:58:38,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:58:38,502 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:58:38,502 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:58:38,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:58:38,503 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:58:38,503 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:58:38,526 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:58:38,526 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:58:38,526 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:58:38,526 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:58:38,529 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:58:38,530 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:58:38,530 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:58:38,530 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:58:38,530 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:58:38,530 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:58:38,531 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:58:38,531 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:58:38,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:58:38,531 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:58:38,531 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:58:38,531 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:58:38,532 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:58:38,533 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:58:38,533 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:58:38,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:58:38,533 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:58:38,534 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:58:38,535 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:58:38,584 INFO ]: Repository-Root is: /tmp [2018-06-24 21:58:38,599 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:58:38,604 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:58:38,605 INFO ]: Initializing SmtParser... [2018-06-24 21:58:38,606 INFO ]: SmtParser initialized [2018-06-24 21:58:38,607 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 [2018-06-24 21:58:38,608 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 [2018-06-24 21:58:38,693 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@4b29908a [2018-06-24 21:58:39,319 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 [2018-06-24 21:58:39,325 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:58:39,331 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:58:39,331 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:58:39,331 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:58:39,331 INFO ]: ChcToBoogie initialized [2018-06-24 21:58:39,334 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,433 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39 Unit [2018-06-24 21:58:39,433 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:58:39,434 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:58:39,434 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:58:39,434 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:58:39,454 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,454 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,481 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,481 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,507 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,512 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,518 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (1/1) ... [2018-06-24 21:58:39,527 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:58:39,528 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:58:39,528 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:58:39,528 INFO ]: RCFGBuilder initialized [2018-06-24 21:58:39,529 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (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) [2018-06-24 21:58:39,558 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:58:39,558 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:58:39,558 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:58:39,558 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:58:39,558 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:58:39,558 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 [2018-06-24 21:58:40,679 INFO ]: Using library mode [2018-06-24 21:58:40,680 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:58:40 BoogieIcfgContainer [2018-06-24 21:58:40,680 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:58:40,680 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:58:40,680 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:58:40,681 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:58:40,681 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:58:40" (1/1) ... [2018-06-24 21:58:40,705 INFO ]: Initial Icfg 10 locations, 74 edges [2018-06-24 21:58:40,706 INFO ]: Using Remove infeasible edges [2018-06-24 21:58:40,707 INFO ]: Using Maximize final states [2018-06-24 21:58:40,707 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:58:40,707 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:58:40,711 INFO ]: Using Remove sink states [2018-06-24 21:58:40,712 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:58:40,712 INFO ]: Using Use SBE [2018-06-24 21:58:40,786 INFO ]: SBE split 38 edges [2018-06-24 21:58:40,792 INFO ]: Removed 17 edges and 2 locations because of local infeasibility [2018-06-24 21:58:40,794 INFO ]: 0 new accepting states [2018-06-24 21:58:41,711 INFO ]: Removed 87 edges and 2 locations by large block encoding [2018-06-24 21:58:41,713 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:58:41,715 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:58:41,715 INFO ]: 0 new accepting states [2018-06-24 21:58:41,716 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:58:41,716 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:58:41,717 INFO ]: Encoded RCFG 6 locations, 103 edges [2018-06-24 21:58:41,717 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:58:41 BasicIcfg [2018-06-24 21:58:41,717 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:58:41,718 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:58:41,718 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:58:41,721 INFO ]: TraceAbstraction initialized [2018-06-24 21:58:41,721 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:58:39" (1/4) ... [2018-06-24 21:58:41,723 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d263975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:58:41, skipping insertion in model container [2018-06-24 21:58:41,723 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:39" (2/4) ... [2018-06-24 21:58:41,723 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d263975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:58:41, skipping insertion in model container [2018-06-24 21:58:41,723 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:58:40" (3/4) ... [2018-06-24 21:58:41,723 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d263975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:58:41, skipping insertion in model container [2018-06-24 21:58:41,723 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:58:41" (4/4) ... [2018-06-24 21:58:41,725 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:58:41,735 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:58:41,744 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:58:41,817 INFO ]: Using default assertion order modulation [2018-06-24 21:58:41,818 INFO ]: Interprodecural is true [2018-06-24 21:58:41,818 INFO ]: Hoare is false [2018-06-24 21:58:41,818 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:58:41,818 INFO ]: Backedges is TWOTRACK [2018-06-24 21:58:41,818 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:58:41,818 INFO ]: Difference is false [2018-06-24 21:58:41,818 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:58:41,818 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:58:41,830 INFO ]: Start isEmpty. Operand 6 states. [2018-06-24 21:58:41,840 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:58:41,840 INFO ]: Found error trace [2018-06-24 21:58:41,841 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:58:41,841 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:58:41,847 INFO ]: Analyzing trace with hash 41944153, now seen corresponding path program 1 times [2018-06-24 21:58:41,849 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:58:41,849 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:58:41,894 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:58:41,894 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:58:41,894 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:58:41,957 INFO ]: Conjunction of SSA is sat [2018-06-24 21:58:41,963 INFO ]: Counterexample might be feasible [2018-06-24 21:58:41,976 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:58:41,978 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:58:41 BasicIcfg [2018-06-24 21:58:41,978 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:58:41,980 INFO ]: Toolchain (without parser) took 2654.11 ms. Allocated memory was 307.2 MB in the beginning and 327.7 MB in the end (delta: 20.4 MB). Free memory was 233.7 MB in the beginning and 229.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:41,981 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:58:41,982 INFO ]: ChcToBoogie took 102.39 ms. Allocated memory is still 307.2 MB. Free memory was 231.7 MB in the beginning and 227.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:41,982 INFO ]: Boogie Preprocessor took 93.49 ms. Allocated memory is still 307.2 MB. Free memory was 227.7 MB in the beginning and 225.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:41,984 INFO ]: RCFGBuilder took 1152.15 ms. Allocated memory was 307.2 MB in the beginning and 327.7 MB in the end (delta: 20.4 MB). Free memory was 225.7 MB in the beginning and 291.3 MB in the end (delta: -65.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:41,984 INFO ]: BlockEncodingV2 took 1037.14 ms. Allocated memory is still 327.7 MB. Free memory was 291.3 MB in the beginning and 236.1 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:41,985 INFO ]: TraceAbstraction took 259.57 ms. Allocated memory is still 327.7 MB. Free memory was 236.1 MB in the beginning and 229.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:41,990 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 74 edges - StatisticsResult: Encoded RCFG 6 locations, 103 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 102.39 ms. Allocated memory is still 307.2 MB. Free memory was 231.7 MB in the beginning and 227.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 93.49 ms. Allocated memory is still 307.2 MB. Free memory was 227.7 MB in the beginning and 225.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1152.15 ms. Allocated memory was 307.2 MB in the beginning and 327.7 MB in the end (delta: 20.4 MB). Free memory was 225.7 MB in the beginning and 291.3 MB in the end (delta: -65.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 1037.14 ms. Allocated memory is still 327.7 MB. Free memory was 291.3 MB in the beginning and 236.1 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 259.57 ms. Allocated memory is still 327.7 MB. Free memory was 236.1 MB in the beginning and 229.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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); [L0] assume (((((((((((!(hbv_False_3_Array_Int_Int[hbv_False_5_Int] == hbv_False_6_Int) && !(hbv_False_1_Array_Int_Int[hbv_False_4_Int] == 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_4_Int + 1 + 1] == 0)) && !(0 == hbv_False_3_Array_Int_Int[hbv_False_5_Int + 1])) && !(hbv_False_1_Array_Int_Int[hbv_False_4_Int + 1] == hbv_False_7_Int)) && hbv_False_3_Array_Int_Int[hbv_False_5_Int + 1 + 1] == hbv_False_6_Int) && !(hbv_False_3_Array_Int_Int[hbv_False_5_Int] == 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_4_Int + 1] == 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_4_Int + 1 + 1] == hbv_False_7_Int)) && !(hbv_False_1_Array_Int_Int[hbv_False_4_Int] == hbv_False_7_Int)) && hbv_False_1_Array_Int_Int[hbv_False_4_Int + 1 + 1 + 1] == hbv_False_7_Int) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int] == hbv_False_3_Array_Int_Int[hbv_False_2_Int] && hbv_False_4_Int + 1 + 1 + 1 == hbv_False_5_Int + 1 + 1)) && !(hbv_False_3_Array_Int_Int[hbv_False_5_Int + 1] == hbv_False_6_Int); [L0] hhv_INV_MAIN_42_0_Int, hhv_INV_MAIN_42_1_Int, hhv_INV_MAIN_42_2_Int, hhv_INV_MAIN_42_3_Int, hhv_INV_MAIN_42_4_Int, hhv_INV_MAIN_42_5_Int, hhv_INV_MAIN_42_6_Int, hhv_INV_MAIN_42_7_Int := hbv_False_7_Int, hbv_False_4_Int, skolem89(hbv_False_6_Int, hbv_False_4_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int), hbv_False_1_Array_Int_Int[skolem89(hbv_False_6_Int, hbv_False_4_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int)], hbv_False_6_Int, hbv_False_5_Int, skolem90(hbv_False_6_Int, hbv_False_4_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int), hbv_False_3_Array_Int_Int[skolem90(hbv_False_6_Int, hbv_False_4_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int)]; [L0] havoc hbv_False_4_Int, hbv_False_5_Int, hbv_False_2_Int, hbv_False_6_Int, hbv_False_3_Array_Int_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 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=6occurred 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__strchr_1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-58-42-007.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strchr_1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-58-42-007.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strchr_1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-58-42-007.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strchr_1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-58-42-007.csv Received shutdown request...