./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC --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 47ea6740abb52526626597c1b9d05146c745bc7f .......................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 00:30:32,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:32,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:32,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:32,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:32,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:32,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:32,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:32,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:32,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:32,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:32,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:32,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:32,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:32,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:32,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:32,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:32,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:32,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:32,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:32,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:32,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:32,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:32,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:32,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:32,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:32,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:32,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:32,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:32,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:32,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:32,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:32,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:32,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:32,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:32,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:32,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:32,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:32,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:32,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:32,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:32,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:30:32,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:32,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:32,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:32,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:32,655 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:32,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:32,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:30:32,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:32,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:30:32,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:32,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:30:32,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:30:32,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:30:32,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:30:32,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:32,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:32,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:30:32,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:32,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:32,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:30:32,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:32,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:32,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:30:32,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:30:32,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:32,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:30:32,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:30:32,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:32,660 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_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ea6740abb52526626597c1b9d05146c745bc7f [2021-10-11 00:30:32,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:32,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:32,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:32,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:32,970 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:32,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c [2021-10-11 00:30:33,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/data/550198714/320787af54904264aef4c38a9f4061a0/FLAG30fd74646 [2021-10-11 00:30:33,618 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:33,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c [2021-10-11 00:30:33,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/data/550198714/320787af54904264aef4c38a9f4061a0/FLAG30fd74646 [2021-10-11 00:30:33,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/data/550198714/320787af54904264aef4c38a9f4061a0 [2021-10-11 00:30:33,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:33,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:33,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:33,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:33,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:33,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:33" (1/1) ... [2021-10-11 00:30:33,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15559858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:33, skipping insertion in model container [2021-10-11 00:30:33,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:33" (1/1) ... [2021-10-11 00:30:33,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:34,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:34,188 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c[555,568] [2021-10-11 00:30:34,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:34,211 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:34,224 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound1.c[555,568] [2021-10-11 00:30:34,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:34,245 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:34,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34 WrapperNode [2021-10-11 00:30:34,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:34,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:34,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:34,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:34,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:34,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:34,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:34,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:34,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... [2021-10-11 00:30:34,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:34,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:34,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:34,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:34,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:30:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:30:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:34,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:34,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:34,697 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 00:30:34,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:34 BoogieIcfgContainer [2021-10-11 00:30:34,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:34,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:34,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:34,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:34,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:33" (1/3) ... [2021-10-11 00:30:34,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1195f07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:34, skipping insertion in model container [2021-10-11 00:30:34,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:34" (2/3) ... [2021-10-11 00:30:34,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1195f07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:34, skipping insertion in model container [2021-10-11 00:30:34,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:34" (3/3) ... [2021-10-11 00:30:34,708 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound1.c [2021-10-11 00:30:34,722 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:34,725 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:30:34,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:30:34,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:34,779 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:34,779 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:34,780 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:34,780 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:34,780 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:34,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:34,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2021-10-11 00:30:34,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:30:34,819 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:34,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:34,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:34,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:34,829 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2021-10-11 00:30:34,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:34,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421127835] [2021-10-11 00:30:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:35,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421127835] [2021-10-11 00:30:35,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:35,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:35,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634874434] [2021-10-11 00:30:35,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:30:35,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:35,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:30:35,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:35,067 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2021-10-11 00:30:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:35,089 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2021-10-11 00:30:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:30:35,093 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 00:30:35,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:35,103 INFO L225 Difference]: With dead ends: 35 [2021-10-11 00:30:35,113 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 00:30:35,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 00:30:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 00:30:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:30:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-11 00:30:35,149 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2021-10-11 00:30:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:35,150 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-11 00:30:35,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:30:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-11 00:30:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:30:35,151 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:35,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:35,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:30:35,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:35,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:35,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2021-10-11 00:30:35,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:35,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009714132] [2021-10-11 00:30:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:35,173 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:30:35,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [112591940] [2021-10-11 00:30:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:30:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:35,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 00:30:35,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:35,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009714132] [2021-10-11 00:30:35,380 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:30:35,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112591940] [2021-10-11 00:30:35,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:35,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:30:35,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350099091] [2021-10-11 00:30:35,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:30:35,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:35,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:30:35,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:30:35,384 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2021-10-11 00:30:35,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:35,523 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-10-11 00:30:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:30:35,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-10-11 00:30:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:35,524 INFO L225 Difference]: With dead ends: 22 [2021-10-11 00:30:35,525 INFO L226 Difference]: Without dead ends: 20 [2021-10-11 00:30:35,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:30:35,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-11 00:30:35,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-10-11 00:30:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 00:30:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-11 00:30:35,531 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 9 [2021-10-11 00:30:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:35,531 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-11 00:30:35,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:30:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-11 00:30:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:30:35,532 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:35,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:35,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 00:30:35,747 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:35,747 INFO L82 PathProgramCache]: Analyzing trace with hash 636924791, now seen corresponding path program 1 times [2021-10-11 00:30:35,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:35,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541348234] [2021-10-11 00:30:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:35,763 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:30:35,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227273060] [2021-10-11 00:30:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:30:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:35,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:35,864 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:35,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:35,899 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:30:36,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:30:36,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:36 BoogieIcfgContainer [2021-10-11 00:30:36,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:36,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:36,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:36,144 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:36,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:34" (3/4) ... [2021-10-11 00:30:36,153 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:30:36,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b6ae86-e710-47d7-af62-f54d03ade066/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:36,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:36,203 INFO L168 Benchmark]: Toolchain (without parser) took 2221.44 ms. Allocated memory is still 121.6 MB. Free memory was 84.9 MB in the beginning and 76.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:36,204 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 121.6 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 70.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:36,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.44 ms. Allocated memory is still 121.6 MB. Free memory was 84.7 MB in the beginning and 97.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:36,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.54 ms. Allocated memory is still 121.6 MB. Free memory was 97.2 MB in the beginning and 95.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:36,206 INFO L168 Benchmark]: Boogie Preprocessor took 21.31 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 94.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:36,207 INFO L168 Benchmark]: RCFGBuilder took 394.93 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 82.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:36,208 INFO L168 Benchmark]: TraceAbstraction took 1442.63 ms. Allocated memory is still 121.6 MB. Free memory was 81.6 MB in the beginning and 78.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:36,209 INFO L168 Benchmark]: Witness Printer took 57.20 ms. Allocated memory is still 121.6 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:36,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 121.6 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 70.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.44 ms. Allocated memory is still 121.6 MB. Free memory was 84.7 MB in the beginning and 97.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.54 ms. Allocated memory is still 121.6 MB. Free memory was 97.2 MB in the beginning and 95.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.31 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 94.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 394.93 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 82.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1442.63 ms. Allocated memory is still 121.6 MB. Free memory was 81.6 MB in the beginning and 78.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Witness Printer took 57.20 ms. Allocated memory is still 121.6 MB. Free memory was 78.5 MB in the beginning and 76.4 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L13] COND FALSE !(!cond) [L27] k = __VERIFIER_nondet_uint() [L13] COND FALSE !(!cond) [L30] x = 1 [L31] y = z [L32] c = 1 [L34] COND TRUE 1 [L16] COND FALSE !(!(cond)) [L37] COND TRUE !(c < k) [L46] x = x * (z - 1) [L16] COND TRUE !(cond) [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 22 SDs, 0 SdLazy, 28 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 6 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 15 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...