./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0 --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 2e05249da124fa8fd89a00721e51c7b41eff3d4952cff855bee564f7b5deef09 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:24:14,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:24:14,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:24:14,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:24:14,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:24:14,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:24:14,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:24:14,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:24:14,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:24:14,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:24:14,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:24:14,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:24:14,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:24:14,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:24:14,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:24:14,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:24:14,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:24:14,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:24:14,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:24:14,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:24:14,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:24:14,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:24:14,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:24:14,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:24:14,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:24:14,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:24:14,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:24:14,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:24:14,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:24:14,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:24:14,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:24:14,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:24:14,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:24:14,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:24:14,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:24:14,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:24:14,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:24:14,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:24:14,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:24:14,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:24:14,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:24:14,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:24:14,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:24:14,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:24:14,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:24:14,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:24:14,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:24:14,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:24:14,188 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:24:14,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:24:14,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:24:14,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:24:14,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:24:14,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:24:14,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:24:14,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:24:14,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:24:14,191 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:24:14,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:24:14,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:24:14,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:24:14,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:24:14,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:24:14,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:24:14,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:24:14,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:24:14,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:24:14,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:24:14,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:24:14,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:24:14,194 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:24:14,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:24:14,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:24:14,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:24:14,196 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_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e05249da124fa8fd89a00721e51c7b41eff3d4952cff855bee564f7b5deef09 [2021-11-22 14:24:14,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:24:14,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:24:14,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:24:14,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:24:14,500 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:24:14,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound2.c [2021-11-22 14:24:14,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/data/d74ab4edb/c7e712ef6e8a439c8b5e762a4feeaadd/FLAGe4ec8e758 [2021-11-22 14:24:15,075 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:24:15,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound2.c [2021-11-22 14:24:15,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/data/d74ab4edb/c7e712ef6e8a439c8b5e762a4feeaadd/FLAGe4ec8e758 [2021-11-22 14:24:15,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/data/d74ab4edb/c7e712ef6e8a439c8b5e762a4feeaadd [2021-11-22 14:24:15,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:24:15,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:24:15,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:24:15,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:24:15,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:24:15,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102e7ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15, skipping insertion in model container [2021-11-22 14:24:15,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:24:15,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:24:15,666 WARN L230 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_62e7f221-4546-4f7e-aea1-ca4ef9798570/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound2.c[525,538] [2021-11-22 14:24:15,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:24:15,687 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:24:15,700 WARN L230 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_62e7f221-4546-4f7e-aea1-ca4ef9798570/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound2.c[525,538] [2021-11-22 14:24:15,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:24:15,718 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:24:15,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15 WrapperNode [2021-11-22 14:24:15,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:24:15,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:24:15,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:24:15,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:24:15,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,758 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2021-11-22 14:24:15,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:24:15,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:24:15,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:24:15,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:24:15,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:24:15,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:24:15,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:24:15,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:24:15,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:24:15,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:24:15,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:24:15,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:24:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:24:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:24:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:24:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:24:15,955 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:24:15,957 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:24:16,091 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:24:16,096 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:24:16,097 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:24:16,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:16 BoogieIcfgContainer [2021-11-22 14:24:16,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:24:16,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:24:16,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:24:16,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:24:16,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:24:15" (1/3) ... [2021-11-22 14:24:16,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:16, skipping insertion in model container [2021-11-22 14:24:16,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15" (2/3) ... [2021-11-22 14:24:16,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:16, skipping insertion in model container [2021-11-22 14:24:16,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:16" (3/3) ... [2021-11-22 14:24:16,107 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound2.c [2021-11-22 14:24:16,112 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:24:16,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 14:24:16,175 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:24:16,186 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, mAutomataTypeConcurrency=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 [2021-11-22 14:24:16,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 14:24:16,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-11-22 14:24:16,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 14:24:16,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:16,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 14:24:16,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:24:16,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-11-22 14:24:16,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:24:16,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081242912] [2021-11-22 14:24:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:16,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:24:16,347 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 14:24:16,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817358760] [2021-11-22 14:24:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:16,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:24:16,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:24:16,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:24:16,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:24:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:16,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 14:24:16,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:16,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 14:24:16,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:24:16,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081242912] [2021-11-22 14:24:16,643 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 14:24:16,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817358760] [2021-11-22 14:24:16,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817358760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:16,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:16,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 14:24:16,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476188440] [2021-11-22 14:24:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:16,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:24:16,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:24:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:24:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:16,696 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-22 14:24:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:16,785 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2021-11-22 14:24:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:24:16,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2021-11-22 14:24:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:16,797 INFO L225 Difference]: With dead ends: 47 [2021-11-22 14:24:16,798 INFO L226 Difference]: Without dead ends: 21 [2021-11-22 14:24:16,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:24:16,809 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:16,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 42 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:24:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-22 14:24:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-11-22 14:24:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-11-22 14:24:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-11-22 14:24:16,853 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2021-11-22 14:24:16,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:16,854 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-11-22 14:24:16,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-22 14:24:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-11-22 14:24:16,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:24:16,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:16,855 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:24:16,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:17,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:24:17,062 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:24:17,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:17,063 INFO L85 PathProgramCache]: Analyzing trace with hash 662417944, now seen corresponding path program 1 times [2021-11-22 14:24:17,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:24:17,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454252503] [2021-11-22 14:24:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:17,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:24:17,074 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 14:24:17,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59002345] [2021-11-22 14:24:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:17,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:24:17,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:24:17,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:24:17,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 14:24:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:17,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 14:24:17,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:17,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:17,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:24:17,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454252503] [2021-11-22 14:24:17,711 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 14:24:17,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59002345] [2021-11-22 14:24:17,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59002345] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:24:17,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 14:24:17,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-22 14:24:17,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349879369] [2021-11-22 14:24:17,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 14:24:17,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:24:17,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:24:17,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:24:17,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:24:17,714 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-11-22 14:24:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:17,827 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-11-22 14:24:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:24:17,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 11 [2021-11-22 14:24:17,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:17,828 INFO L225 Difference]: With dead ends: 25 [2021-11-22 14:24:17,828 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 14:24:17,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-22 14:24:17,830 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:17,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 23 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:24:17,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 14:24:17,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 14:24:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-22 14:24:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 14:24:17,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-22 14:24:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:17,834 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:24:17,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-11-22 14:24:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:24:17,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 14:24:17,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 14:24:17,838 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 14:24:17,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:18,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:24:18,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 14:24:20,160 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 14:24:20,161 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 14:24:20,161 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-11-22 14:24:20,161 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))) [2021-11-22 14:24:20,161 INFO L858 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-11-22 14:24:20,161 INFO L861 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2021-11-22 14:24:20,162 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2021-11-22 14:24:20,162 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 14:24:20,162 INFO L854 garLoopResultBuilder]: At program point L34-3(lines 34 43) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))) (and (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1))) [2021-11-22 14:24:20,162 INFO L858 garLoopResultBuilder]: For program point L34-4(lines 34 43) no Hoare annotation was computed. [2021-11-22 14:24:20,162 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 14:24:20,162 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 14:24:20,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-11-22 14:24:20,163 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-11-22 14:24:20,163 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-11-22 14:24:20,163 INFO L861 garLoopResultBuilder]: At program point L45(lines 24 46) the Hoare annotation is: true [2021-11-22 14:24:20,163 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-22 14:24:20,182 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 14:24:20,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:24:20,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:24:20 BoogieIcfgContainer [2021-11-22 14:24:20,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:24:20,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:24:20,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:24:20,204 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:24:20,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:16" (3/4) ... [2021-11-22 14:24:20,210 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 14:24:20,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-22 14:24:20,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-22 14:24:20,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 14:24:20,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 14:24:20,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:24:20,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:24:20,268 INFO L158 Benchmark]: Toolchain (without parser) took 4829.62ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 71.1MB in the beginning and 110.9MB in the end (delta: -39.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-11-22 14:24:20,269 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:24:20,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.89ms. Allocated memory is still 111.1MB. Free memory was 70.9MB in the beginning and 85.5MB in the end (delta: -14.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:24:20,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.34ms. Allocated memory is still 111.1MB. Free memory was 85.5MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:24:20,270 INFO L158 Benchmark]: Boogie Preprocessor took 37.07ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 83.0MB in the end (delta: 727.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:24:20,270 INFO L158 Benchmark]: RCFGBuilder took 301.47ms. Allocated memory is still 111.1MB. Free memory was 82.7MB in the beginning and 73.6MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:24:20,271 INFO L158 Benchmark]: TraceAbstraction took 4103.11ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 73.3MB in the beginning and 114.0MB in the end (delta: -40.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-11-22 14:24:20,271 INFO L158 Benchmark]: Witness Printer took 63.95ms. Allocated memory is still 157.3MB. Free memory was 114.0MB in the beginning and 110.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:24:20,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.89ms. Allocated memory is still 111.1MB. Free memory was 70.9MB in the beginning and 85.5MB in the end (delta: -14.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.34ms. Allocated memory is still 111.1MB. Free memory was 85.5MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.07ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 83.0MB in the end (delta: 727.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.47ms. Allocated memory is still 111.1MB. Free memory was 82.7MB in the beginning and 73.6MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4103.11ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 73.3MB in the beginning and 114.0MB in the end (delta: -40.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 63.95ms. Allocated memory is still 157.3MB. Free memory was 114.0MB in the beginning and 110.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 24 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, InterpolantAutomatonStates: 11, 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 40 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 9 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 <= cond && y * z + x == x * z + 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (1 <= cond && y * z + x == x * z + 1) || (x == 1 && y == 1) RESULT: Ultimate proved your program to be correct! [2021-11-22 14:24:20,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e7f221-4546-4f7e-aea1-ca4ef9798570/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE