./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc182827b6359022a3b8a131cfda42ecf59c344f .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:41:29,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:41:29,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:41:29,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:41:29,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:41:29,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:41:29,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:41:29,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:41:29,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:41:29,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:41:29,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:41:29,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:41:29,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:41:29,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:41:29,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:41:29,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:41:29,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:41:29,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:41:29,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:41:29,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:41:29,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:41:29,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:41:29,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:41:29,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:41:29,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:41:29,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:41:29,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:41:29,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:41:29,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:41:29,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:41:29,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:41:29,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:41:29,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:41:29,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:41:29,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:41:29,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:41:29,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:41:29,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:41:29,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:41:29,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:41:29,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:41:29,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:41:30,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:41:30,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:41:30,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:41:30,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:41:30,026 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:41:30,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:41:30,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:41:30,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:41:30,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:41:30,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:41:30,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:41:30,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:41:30,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:41:30,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:41:30,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:41:30,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:41:30,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:41:30,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:41:30,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:41:30,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:41:30,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:41:30,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:41:30,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:41:30,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:41:30,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:41:30,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:41:30,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:41:30,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:41:30,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:41:30,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc182827b6359022a3b8a131cfda42ecf59c344f [2020-11-29 18:41:30,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:41:30,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:41:30,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:41:30,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:41:30,406 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:41:30,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c [2020-11-29 18:41:30,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/data/6d80afb55/3ec582a74a0c40daadbb324172776197/FLAG0e53b4345 [2020-11-29 18:41:31,076 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:41:31,077 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c [2020-11-29 18:41:31,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/data/6d80afb55/3ec582a74a0c40daadbb324172776197/FLAG0e53b4345 [2020-11-29 18:41:31,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/data/6d80afb55/3ec582a74a0c40daadbb324172776197 [2020-11-29 18:41:31,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:41:31,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:41:31,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:41:31,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:41:31,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:41:31,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9e065e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31, skipping insertion in model container [2020-11-29 18:41:31,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:41:31,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:41:31,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:41:31,731 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:41:31,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:41:31,769 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:41:31,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31 WrapperNode [2020-11-29 18:41:31,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:41:31,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:41:31,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:41:31,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:41:31,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:41:31,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:41:31,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:41:31,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:41:31,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... [2020-11-29 18:41:31,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:41:31,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:41:31,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:41:31,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:41:31,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/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 [2020-11-29 18:41:31,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:41:31,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:41:31,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:41:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:41:32,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:41:32,416 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-29 18:41:32,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:32 BoogieIcfgContainer [2020-11-29 18:41:32,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:41:32,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:41:32,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:41:32,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:41:32,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:41:31" (1/3) ... [2020-11-29 18:41:32,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d38a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:32, skipping insertion in model container [2020-11-29 18:41:32,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:31" (2/3) ... [2020-11-29 18:41:32,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d38a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:32, skipping insertion in model container [2020-11-29 18:41:32,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:32" (3/3) ... [2020-11-29 18:41:32,433 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound1.c [2020-11-29 18:41:32,447 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:41:32,453 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 18:41:32,469 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 18:41:32,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:41:32,519 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:41:32,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:41:32,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:41:32,520 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:41:32,520 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:41:32,520 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:41:32,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:41:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-29 18:41:32,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 18:41:32,550 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:41:32,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:41:32,551 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:41:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:32,561 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-11-29 18:41:32,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:32,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599903752] [2020-11-29 18:41:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:32,735 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:41:32,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289653458] [2020-11-29 18:41:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:41:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:32,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:41:32,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:32,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599903752] [2020-11-29 18:41:32,955 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:41:32,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289653458] [2020-11-29 18:41:32,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:41:32,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:41:32,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401987932] [2020-11-29 18:41:32,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:41:32,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:41:32,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:41:32,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:41:32,979 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-11-29 18:41:33,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:41:33,096 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-29 18:41:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:41:33,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-29 18:41:33,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:41:33,107 INFO L225 Difference]: With dead ends: 39 [2020-11-29 18:41:33,108 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 18:41:33,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:41:33,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 18:41:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2020-11-29 18:41:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 18:41:33,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-29 18:41:33,142 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2020-11-29 18:41:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:41:33,142 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-29 18:41:33,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:41:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-29 18:41:33,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:41:33,143 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:41:33,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:41:33,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-29 18:41:33,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:41:33,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:33,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1806863068, now seen corresponding path program 1 times [2020-11-29 18:41:33,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:33,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549719477] [2020-11-29 18:41:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:33,373 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:41:33,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682172921] [2020-11-29 18:41:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:41:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:33,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:41:33,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:33,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549719477] [2020-11-29 18:41:33,458 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:41:33,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682172921] [2020-11-29 18:41:33,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:41:33,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:41:33,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704572980] [2020-11-29 18:41:33,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:41:33,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:41:33,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:41:33,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:41:33,463 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2020-11-29 18:41:33,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:41:33,486 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-29 18:41:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:41:33,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 18:41:33,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:41:33,488 INFO L225 Difference]: With dead ends: 19 [2020-11-29 18:41:33,488 INFO L226 Difference]: Without dead ends: 15 [2020-11-29 18:41:33,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:41:33,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-29 18:41:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-29 18:41:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 18:41:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-29 18:41:33,494 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2020-11-29 18:41:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:41:33,494 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-29 18:41:33,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:41:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-29 18:41:33,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:41:33,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:41:33,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:41:33,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:41:33,701 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:41:33,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:33,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1275448533, now seen corresponding path program 1 times [2020-11-29 18:41:33,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:33,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990418187] [2020-11-29 18:41:33,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:33,725 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:41:33,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892134509] [2020-11-29 18:41:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:41:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:33,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:33,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:33,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:33,868 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:41:34,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:41:34,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:41:34 BoogieIcfgContainer [2020-11-29 18:41:34,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:41:34,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:41:34,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:41:34,112 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:41:34,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:32" (3/4) ... [2020-11-29 18:41:34,115 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:41:34,168 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7aa2a69-53ca-4414-9692-eb2ba7ee585a/bin/uautomizer/witness.graphml [2020-11-29 18:41:34,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:41:34,170 INFO L168 Benchmark]: Toolchain (without parser) took 2722.40 ms. Allocated memory was 132.1 MB in the beginning and 167.8 MB in the end (delta: 35.7 MB). Free memory was 103.8 MB in the beginning and 114.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:34,171 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 79.7 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 52.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:41:34,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.41 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 106.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:34,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.44 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 104.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:34,173 INFO L168 Benchmark]: Boogie Preprocessor took 25.09 ms. Allocated memory is still 132.1 MB. Free memory was 104.8 MB in the beginning and 103.9 MB in the end (delta: 897.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:41:34,174 INFO L168 Benchmark]: RCFGBuilder took 580.66 ms. Allocated memory is still 132.1 MB. Free memory was 103.7 MB in the beginning and 92.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:34,175 INFO L168 Benchmark]: TraceAbstraction took 1689.45 ms. Allocated memory was 132.1 MB in the beginning and 167.8 MB in the end (delta: 35.7 MB). Free memory was 91.5 MB in the beginning and 116.4 MB in the end (delta: -24.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:34,176 INFO L168 Benchmark]: Witness Printer took 56.45 ms. Allocated memory is still 167.8 MB. Free memory was 116.4 MB in the beginning and 114.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:34,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 79.7 MB. Free memory was 39.6 MB in the beginning and 39.6 MB in the end (delta: 52.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.41 ms. Allocated memory is still 132.1 MB. Free memory was 103.6 MB in the beginning and 106.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.44 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 104.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.09 ms. Allocated memory is still 132.1 MB. Free memory was 104.8 MB in the beginning and 103.9 MB in the end (delta: 897.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 580.66 ms. Allocated memory is still 132.1 MB. Free memory was 103.7 MB in the beginning and 92.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1689.45 ms. Allocated memory was 132.1 MB in the beginning and 167.8 MB in the end (delta: 35.7 MB). Free memory was 91.5 MB in the beginning and 116.4 MB in the end (delta: -24.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Witness Printer took 56.45 ms. Allocated memory is still 167.8 MB. Free memory was 116.4 MB in the beginning and 114.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; VAL [counter=0] [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<1 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L36] COND TRUE !(c < k) VAL [counter=1] [L45] x = x * (z - 1) [L16] COND TRUE !(cond) VAL [counter=1] [L9] __assert_fail("0", "geo1-u.c", 9, "reach_error") VAL [counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 8 SDslu, 42 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 5 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...