./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3 --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 4dc383db2a89e53bad8cae6a138d4c7c7f853888 ...................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-5709675 [2021-10-15 19:06:10,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:06:10,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:06:10,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:06:10,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:06:10,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:06:10,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:06:10,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:06:10,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:06:10,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:06:10,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:06:10,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:06:10,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:06:10,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:06:10,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:06:10,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:06:10,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:06:10,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:06:10,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:06:10,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:06:10,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:06:10,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:06:10,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:06:10,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:06:10,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:06:10,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:06:10,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:06:10,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:06:10,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:06:10,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:06:10,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:06:10,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:06:10,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:06:10,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:06:10,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:06:10,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:06:10,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:06:10,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:06:10,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:06:10,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:06:10,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:06:10,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:06:10,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:06:10,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:06:10,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:06:10,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:06:10,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:06:10,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:06:10,217 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:06:10,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:06:10,218 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:06:10,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:06:10,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:06:10,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:06:10,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:06:10,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:06:10,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:06:10,219 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:06:10,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:06:10,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:06:10,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:06:10,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:06:10,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:06:10,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:06:10,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:06:10,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:06:10,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:06:10,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:06:10,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:06:10,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:06:10,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:06:10,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:06:10,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:06:10,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:06:10,223 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_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc383db2a89e53bad8cae6a138d4c7c7f853888 [2021-10-15 19:06:10,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:06:10,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:06:10,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:06:10,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:06:10,549 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:06:10,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound5.c [2021-10-15 19:06:10,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/data/80061c4a5/ee4d3dd26fb547308e4581e0c4c69bc5/FLAG6dd1d6df9 [2021-10-15 19:06:11,146 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:06:11,148 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound5.c [2021-10-15 19:06:11,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/data/80061c4a5/ee4d3dd26fb547308e4581e0c4c69bc5/FLAG6dd1d6df9 [2021-10-15 19:06:11,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/data/80061c4a5/ee4d3dd26fb547308e4581e0c4c69bc5 [2021-10-15 19:06:11,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:06:11,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:06:11,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:06:11,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:06:11,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:06:11,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f717e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11, skipping insertion in model container [2021-10-15 19:06:11,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:06:11,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:06:11,740 WARN L228 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_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound5.c[555,568] [2021-10-15 19:06:11,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:06:11,761 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:06:11,773 WARN L228 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_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound5.c[555,568] [2021-10-15 19:06:11,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:06:11,794 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:06:11,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11 WrapperNode [2021-10-15 19:06:11,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:06:11,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:06:11,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:06:11,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:06:11,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:06:11,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:06:11,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:06:11,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:06:11,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:06:11,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:06:11,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:06:11,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:06:11,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (1/1) ... [2021-10-15 19:06:11,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:06:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:06:11,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:06:11,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:06:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:06:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:06:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:06:11,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:06:12,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:06:12,170 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-15 19:06:12,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:12 BoogieIcfgContainer [2021-10-15 19:06:12,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:06:12,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:06:12,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:06:12,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:06:12,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:06:11" (1/3) ... [2021-10-15 19:06:12,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6899d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:06:12, skipping insertion in model container [2021-10-15 19:06:12,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:11" (2/3) ... [2021-10-15 19:06:12,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6899d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:06:12, skipping insertion in model container [2021-10-15 19:06:12,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:12" (3/3) ... [2021-10-15 19:06:12,188 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound5.c [2021-10-15 19:06:12,193 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:06:12,194 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-15 19:06:12,280 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:06:12,287 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:06:12,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-15 19:06:12,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 25 transitions, 50 flow [2021-10-15 19:06:12,350 INFO L129 PetriNetUnfolder]: 7/25 cut-off events. [2021-10-15 19:06:12,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:12,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 25 events. 7/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 19:06:12,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 19 places, 25 transitions, 50 flow [2021-10-15 19:06:12,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 15 places, 20 transitions, 40 flow [2021-10-15 19:06:12,374 INFO L129 PetriNetUnfolder]: 6/17 cut-off events. [2021-10-15 19:06:12,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:12,375 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:06:12,375 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:12,376 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:06:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:12,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1180944530, now seen corresponding path program 1 times [2021-10-15 19:06:12,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:12,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21619225] [2021-10-15 19:06:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:12,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:06:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:06:12,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:06:12,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21619225] [2021-10-15 19:06:12,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21619225] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:06:12,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:06:12,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:06:12,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640010193] [2021-10-15 19:06:12,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:06:12,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:06:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:06:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:06:12,636 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 25 [2021-10-15 19:06:12,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 20 transitions, 40 flow. Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:12,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:06:12,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 25 [2021-10-15 19:06:12,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:06:12,658 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-10-15 19:06:12,659 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:12,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 15 events. 1/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 4/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2021-10-15 19:06:12,661 INFO L132 encePairwiseOnDemand]: 20/25 looper letters, 0 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2021-10-15 19:06:12,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 15 transitions, 30 flow [2021-10-15 19:06:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:06:12,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:06:12,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 43 transitions. [2021-10-15 19:06:12,676 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.86 [2021-10-15 19:06:12,677 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 43 transitions. [2021-10-15 19:06:12,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 43 transitions. [2021-10-15 19:06:12,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:06:12,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 43 transitions. [2021-10-15 19:06:12,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:12,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:12,688 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:12,690 INFO L186 Difference]: Start difference. First operand has 15 places, 20 transitions, 40 flow. Second operand 2 states and 43 transitions. [2021-10-15 19:06:12,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 15 transitions, 30 flow [2021-10-15 19:06:12,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 15 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:06:12,695 INFO L242 Difference]: Finished difference. Result has 16 places, 15 transitions, 30 flow [2021-10-15 19:06:12,697 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=16, PETRI_TRANSITIONS=15} [2021-10-15 19:06:12,698 INFO L334 CegarLoopForPetriNet]: 15 programPoint places, 1 predicate places. [2021-10-15 19:06:12,699 INFO L470 AbstractCegarLoop]: Abstraction has has 16 places, 15 transitions, 30 flow [2021-10-15 19:06:12,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:12,700 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:06:12,700 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:12,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:06:12,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:06:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:12,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2021-10-15 19:06:12,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:12,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490468105] [2021-10-15 19:06:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:12,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:12,741 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-15 19:06:12,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469608631] [2021-10-15 19:06:12,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:12,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:06:12,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:06:12,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:06:12,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 19:06:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:06:12,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:06:12,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:06:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:06:13,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:06:13,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490468105] [2021-10-15 19:06:13,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-15 19:06:13,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469608631] [2021-10-15 19:06:13,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469608631] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:06:13,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:06:13,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:06:13,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051087251] [2021-10-15 19:06:13,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:06:13,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:06:13,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:06:13,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:06:13,017 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 25 [2021-10-15 19:06:13,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 15 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:13,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:06:13,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 25 [2021-10-15 19:06:13,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:06:13,082 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-10-15 19:06:13,084 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:13,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 21 events. 2/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2021-10-15 19:06:13,085 INFO L132 encePairwiseOnDemand]: 20/25 looper letters, 8 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2021-10-15 19:06:13,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 20 transitions, 66 flow [2021-10-15 19:06:13,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:06:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 19:06:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2021-10-15 19:06:13,090 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.512 [2021-10-15 19:06:13,091 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 64 transitions. [2021-10-15 19:06:13,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 64 transitions. [2021-10-15 19:06:13,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:06:13,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 64 transitions. [2021-10-15 19:06:13,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:13,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:13,107 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:13,107 INFO L186 Difference]: Start difference. First operand has 16 places, 15 transitions, 30 flow. Second operand 5 states and 64 transitions. [2021-10-15 19:06:13,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 20 transitions, 66 flow [2021-10-15 19:06:13,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:06:13,111 INFO L242 Difference]: Finished difference. Result has 21 places, 19 transitions, 59 flow [2021-10-15 19:06:13,112 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=59, PETRI_PLACES=21, PETRI_TRANSITIONS=19} [2021-10-15 19:06:13,113 INFO L334 CegarLoopForPetriNet]: 15 programPoint places, 6 predicate places. [2021-10-15 19:06:13,113 INFO L470 AbstractCegarLoop]: Abstraction has has 21 places, 19 transitions, 59 flow [2021-10-15 19:06:13,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:13,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:06:13,114 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:13,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-15 19:06:13,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-15 19:06:13,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:06:13,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:13,328 INFO L82 PathProgramCache]: Analyzing trace with hash 636924791, now seen corresponding path program 1 times [2021-10-15 19:06:13,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:13,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441645696] [2021-10-15 19:06:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:13,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:13,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-15 19:06:13,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735281784] [2021-10-15 19:06:13,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:13,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:06:13,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:06:13,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:06:13,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-15 19:06:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:13,423 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:13,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:06:13,468 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:06:13,469 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:06:13,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:06:13,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:06:13,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:06:13,677 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:06:13,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:06:13 BoogieIcfgContainer [2021-10-15 19:06:13,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:06:13,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:06:13,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:06:13,699 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:06:13,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:12" (3/4) ... [2021-10-15 19:06:13,701 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-15 19:06:13,741 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:06:13,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:06:13,747 INFO L168 Benchmark]: Toolchain (without parser) took 2231.53 ms. Allocated memory is still 134.2 MB. Free memory was 96.5 MB in the beginning and 52.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:13,748 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 134.2 MB. Free memory was 108.1 MB in the beginning and 108.1 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:06:13,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.66 ms. Allocated memory is still 134.2 MB. Free memory was 96.3 MB in the beginning and 106.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:13,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 134.2 MB. Free memory was 106.6 MB in the beginning and 105.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:13,749 INFO L168 Benchmark]: Boogie Preprocessor took 21.56 ms. Allocated memory is still 134.2 MB. Free memory was 105.3 MB in the beginning and 104.6 MB in the end (delta: 681.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:06:13,750 INFO L168 Benchmark]: RCFGBuilder took 321.03 ms. Allocated memory is still 134.2 MB. Free memory was 104.6 MB in the beginning and 94.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:13,751 INFO L168 Benchmark]: TraceAbstraction took 1523.19 ms. Allocated memory is still 134.2 MB. Free memory was 94.1 MB in the beginning and 54.2 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:13,751 INFO L168 Benchmark]: Witness Printer took 42.73 ms. Allocated memory is still 134.2 MB. Free memory was 54.2 MB in the beginning and 52.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:13,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 134.2 MB. Free memory was 108.1 MB in the beginning and 108.1 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.66 ms. Allocated memory is still 134.2 MB. Free memory was 96.3 MB in the beginning and 106.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 134.2 MB. Free memory was 106.6 MB in the beginning and 105.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.56 ms. Allocated memory is still 134.2 MB. Free memory was 105.3 MB in the beginning and 104.6 MB in the end (delta: 681.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 321.03 ms. Allocated memory is still 134.2 MB. Free memory was 104.6 MB in the beginning and 94.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1523.19 ms. Allocated memory is still 134.2 MB. Free memory was 94.1 MB in the beginning and 54.2 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 42.73 ms. Allocated memory is still 134.2 MB. Free memory was 54.2 MB in the beginning and 52.2 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1424.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 170.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=2, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.5ms SsaConstructionTime, 110.1ms SatisfiabilityAnalysisTime, 248.2ms InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 4 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 7 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! [2021-10-15 19:06:13,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1de9712-9e5c-4a67-8b68-434d0c5a9c2d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...