./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt --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 289dd888f37cc0d6d55c6d2fce6d1543cb91b245 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:21:34,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:21:34,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:21:34,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:21:34,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:21:34,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:21:35,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:21:35,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:21:35,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:21:35,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:21:35,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:21:35,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:21:35,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:21:35,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:21:35,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:21:35,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:21:35,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:21:35,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:21:35,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:21:35,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:21:35,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:21:35,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:21:35,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:21:35,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:21:35,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:21:35,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:21:35,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:21:35,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:21:35,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:21:35,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:21:35,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:21:35,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:21:35,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:21:35,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:21:35,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:21:35,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:21:35,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:21:35,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:21:35,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:21:35,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:21:35,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:21:35,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:21:35,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:21:35,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:21:35,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:21:35,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:21:35,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:21:35,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:21:35,140 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:21:35,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:21:35,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:21:35,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:21:35,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:21:35,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:21:35,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:21:35,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:21:35,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:21:35,143 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:21:35,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:21:35,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:21:35,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:21:35,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:21:35,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:21:35,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:21:35,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:21:35,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:21:35,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:21:35,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:21:35,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:21:35,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:21:35,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:21:35,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:21:35,147 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_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289dd888f37cc0d6d55c6d2fce6d1543cb91b245 [2021-10-13 01:21:35,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:21:35,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:21:35,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:21:35,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:21:35,496 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:21:35,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2021-10-13 01:21:35,575 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/data/db7fd39d9/e9f36475764947d09f720708440a5dae/FLAG7f584a56e [2021-10-13 01:21:36,272 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:21:36,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2021-10-13 01:21:36,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/data/db7fd39d9/e9f36475764947d09f720708440a5dae/FLAG7f584a56e [2021-10-13 01:21:36,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/data/db7fd39d9/e9f36475764947d09f720708440a5dae [2021-10-13 01:21:36,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:21:36,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:21:36,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:21:36,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:21:36,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:21:36,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:21:36" (1/1) ... [2021-10-13 01:21:36,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188ee163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:36, skipping insertion in model container [2021-10-13 01:21:36,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:21:36" (1/1) ... [2021-10-13 01:21:36,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:21:36,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:21:36,987 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_0212738a-218b-490e-a6f1-58e2f9f6da55/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2021-10-13 01:21:36,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:21:37,008 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:21:37,097 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_0212738a-218b-490e-a6f1-58e2f9f6da55/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2021-10-13 01:21:37,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:21:37,118 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:21:37,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37 WrapperNode [2021-10-13 01:21:37,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:21:37,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:21:37,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:21:37,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:21:37,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:21:37,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:21:37,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:21:37,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:21:37,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:21:37,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:21:37,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:21:37,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:21:37,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (1/1) ... [2021-10-13 01:21:37,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:21:37,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:37,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:37,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:21:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 01:21:37,454 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-13 01:21:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:21:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:21:37,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:21:37,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:21:37,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 01:21:37,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:21:38,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:21:38,688 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 01:21:38,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:21:38 BoogieIcfgContainer [2021-10-13 01:21:38,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:21:38,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:21:38,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:21:38,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:21:38,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:21:36" (1/3) ... [2021-10-13 01:21:38,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b7a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:21:38, skipping insertion in model container [2021-10-13 01:21:38,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:37" (2/3) ... [2021-10-13 01:21:38,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b7a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:21:38, skipping insertion in model container [2021-10-13 01:21:38,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:21:38" (3/3) ... [2021-10-13 01:21:38,706 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2021-10-13 01:21:38,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:21:38,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:21:38,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:21:38,785 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=FINITE_AUTOMATA, 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 [2021-10-13 01:21:38,785 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:21:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 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) [2021-10-13 01:21:38,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 01:21:38,809 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:21:38,810 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:21:38,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:21:38,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:38,817 INFO L82 PathProgramCache]: Analyzing trace with hash 176653045, now seen corresponding path program 1 times [2021-10-13 01:21:38,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:38,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057191840] [2021-10-13 01:21:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:38,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:21:39,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:21:39,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057191840] [2021-10-13 01:21:39,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057191840] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:21:39,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:21:39,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:21:39,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650854449] [2021-10-13 01:21:39,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:21:39,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:21:39,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:21:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:21:39,374 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 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) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-10-13 01:21:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:21:39,455 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2021-10-13 01:21:39,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:21:39,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2021-10-13 01:21:39,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:21:39,469 INFO L225 Difference]: With dead ends: 32 [2021-10-13 01:21:39,470 INFO L226 Difference]: Without dead ends: 17 [2021-10-13 01:21:39,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:21:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-13 01:21:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2021-10-13 01:21:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2021-10-13 01:21:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-13 01:21:39,516 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2021-10-13 01:21:39,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:21:39,518 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-13 01:21:39,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-10-13 01:21:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-13 01:21:39,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 01:21:39,520 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:21:39,525 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:21:39,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:21:39,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:21:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash -314667186, now seen corresponding path program 1 times [2021-10-13 01:21:39,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:39,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984668997] [2021-10-13 01:21:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:39,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:39,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:21:39,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:21:39,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984668997] [2021-10-13 01:21:39,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984668997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:21:39,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128791337] [2021-10-13 01:21:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:39,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:21:39,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:39,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:21:39,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:21:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:40,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 01:21:40,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:21:40,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128791337] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:21:40,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:21:40,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-13 01:21:40,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020420286] [2021-10-13 01:21:40,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 01:21:40,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:21:40,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:21:40,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:21:40,249 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-10-13 01:21:40,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:21:40,395 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-10-13 01:21:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:21:40,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 13 [2021-10-13 01:21:40,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:21:40,398 INFO L225 Difference]: With dead ends: 25 [2021-10-13 01:21:40,398 INFO L226 Difference]: Without dead ends: 22 [2021-10-13 01:21:40,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 91.5ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:21:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-13 01:21:40,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-10-13 01:21:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 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) [2021-10-13 01:21:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-13 01:21:40,406 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 13 [2021-10-13 01:21:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:21:40,409 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-13 01:21:40,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-10-13 01:21:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-13 01:21:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 01:21:40,412 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:21:40,415 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:21:40,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:40,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:21:40,641 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:21:40,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:40,642 INFO L82 PathProgramCache]: Analyzing trace with hash 921588373, now seen corresponding path program 2 times [2021-10-13 01:21:40,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:40,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053916231] [2021-10-13 01:21:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:40,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:21:40,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:21:40,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053916231] [2021-10-13 01:21:40,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053916231] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:21:40,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139441082] [2021-10-13 01:21:40,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 01:21:40,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:21:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:40,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:21:40,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:21:41,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 01:21:41,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:21:41,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 01:21:41,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:21:41,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139441082] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:21:41,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:21:41,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-13 01:21:41,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926284456] [2021-10-13 01:21:41,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:21:41,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:21:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:21:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:21:41,350 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2021-10-13 01:21:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:21:41,543 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-10-13 01:21:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:21:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) Word has length 18 [2021-10-13 01:21:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:21:41,546 INFO L225 Difference]: With dead ends: 30 [2021-10-13 01:21:41,546 INFO L226 Difference]: Without dead ends: 27 [2021-10-13 01:21:41,547 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-13 01:21:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-13 01:21:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2021-10-13 01:21:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2021-10-13 01:21:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-10-13 01:21:41,557 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 18 [2021-10-13 01:21:41,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:21:41,559 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-10-13 01:21:41,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 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) [2021-10-13 01:21:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-10-13 01:21:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 01:21:41,562 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:21:41,563 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-10-13 01:21:41,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:41,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:21:41,777 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:21:41,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:41,778 INFO L82 PathProgramCache]: Analyzing trace with hash -590838866, now seen corresponding path program 3 times [2021-10-13 01:21:41,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:41,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173866673] [2021-10-13 01:21:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:41,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:42,006 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:21:42,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:21:42,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173866673] [2021-10-13 01:21:42,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173866673] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:21:42,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400382388] [2021-10-13 01:21:42,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 01:21:42,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:21:42,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:42,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:21:42,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 01:21:43,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 01:21:43,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:21:43,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 01:21:43,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:44,678 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 01:21:44,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 55 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 89 treesize of output 169 [2021-10-13 01:21:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 01:21:48,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400382388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:21:48,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:21:48,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-10-13 01:21:48,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440681595] [2021-10-13 01:21:48,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 01:21:48,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:21:48,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 01:21:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-10-13 01:21:48,104 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2021-10-13 01:21:50,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:21:50,166 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-10-13 01:21:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 01:21:50,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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 23 [2021-10-13 01:21:50,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:21:50,169 INFO L225 Difference]: With dead ends: 35 [2021-10-13 01:21:50,169 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:21:50,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2134.6ms TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2021-10-13 01:21:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:21:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:21:50,171 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) [2021-10-13 01:21:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:21:50,172 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-13 01:21:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:21:50,172 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:21:50,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2021-10-13 01:21:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:21:50,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:21:50,176 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:21:50,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:50,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:21:50,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:21:50,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:21:50,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:21:50,875 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 236) no Hoare annotation was computed. [2021-10-13 01:21:50,875 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:21:50,875 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 208) no Hoare annotation was computed. [2021-10-13 01:21:50,876 INFO L857 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2021-10-13 01:21:50,876 INFO L857 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2021-10-13 01:21:50,876 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 229) no Hoare annotation was computed. [2021-10-13 01:21:50,876 INFO L857 garLoopResultBuilder]: For program point L180(lines 180 234) no Hoare annotation was computed. [2021-10-13 01:21:50,876 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 207) no Hoare annotation was computed. [2021-10-13 01:21:50,877 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:21:50,877 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:21:50,877 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:21:50,877 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 221) no Hoare annotation was computed. [2021-10-13 01:21:50,878 INFO L853 garLoopResultBuilder]: At program point L202(lines 167 235) the Hoare annotation is: (let ((.cse15 (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.base|))) (let ((.cse2 (= (select .cse15 (+ 408 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) 24650)) (.cse3 (<= (select .cse15 (+ 456 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) 24644)) (.cse4 (= 24647 (select .cse15 (+ 156 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)))) (.cse5 (= (select .cse15 (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 420)) 24655)) (.cse6 (<= (select .cse15 (+ 468 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) 24645)) (.cse7 (<= 24658 (select .cse15 (+ 480 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)))) (.cse8 (= (select .cse15 (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 396)) 24650)) (.cse9 (= (select .cse15 (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0)) (.cse10 (= |ULTIMATE.start_main_~#main__Id_MCDC_119~0.offset| 0)) (.cse11 (<= 24657 (select .cse15 (+ 444 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)))) (.cse12 (<= 24656 (select .cse15 (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 432)))) (.cse13 (= |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 0)) (.cse14 (<= (select .cse15 (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 384)) 24649))) (or (let ((.cse0 (mod (+ 4294967295 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) 4294967296)) (.cse1 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296))) (and (not (= (* 12 .cse0) 492)) (not (= (* 12 .cse1) 492)) .cse2 .cse3 (< .cse0 42) .cse4 (< .cse1 42) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14)) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~Id_MCDC_93~0 1) .cse7 .cse8 .cse9 .cse10 (<= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 1) (<= 1 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse11 .cse12 .cse13 .cse14) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (= ~Id_MCDC_93~0 0) .cse12 .cse13 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse14)))) [2021-10-13 01:21:50,878 INFO L860 garLoopResultBuilder]: At program point L233(lines 133 237) the Hoare annotation is: true [2021-10-13 01:21:50,883 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:21:50,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:21:50 BoogieIcfgContainer [2021-10-13 01:21:50,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:21:50,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:21:50,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:21:50,916 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:21:50,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:21:38" (3/4) ... [2021-10-13 01:21:50,921 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:21:50,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-13 01:21:50,941 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 01:21:50,942 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 01:21:50,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:21:50,944 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:21:51,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:21:51,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:21:51,232 INFO L168 Benchmark]: Toolchain (without parser) took 14612.42 ms. Allocated memory was 107.0 MB in the beginning and 184.5 MB in the end (delta: 77.6 MB). Free memory was 77.2 MB in the beginning and 107.8 MB in the end (delta: -30.7 MB). Peak memory consumption was 89.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,232 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 64.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:21:51,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.48 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 74.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.43 ms. Allocated memory is still 107.0 MB. Free memory was 74.7 MB in the beginning and 71.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,234 INFO L168 Benchmark]: Boogie Preprocessor took 76.22 ms. Allocated memory is still 107.0 MB. Free memory was 71.3 MB in the beginning and 68.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,234 INFO L168 Benchmark]: RCFGBuilder took 1387.73 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 68.0 MB in the beginning and 109.7 MB in the end (delta: -41.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,235 INFO L168 Benchmark]: TraceAbstraction took 12222.47 ms. Allocated memory was 138.4 MB in the beginning and 184.5 MB in the end (delta: 46.1 MB). Free memory was 109.7 MB in the beginning and 81.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,235 INFO L168 Benchmark]: Witness Printer took 315.03 ms. Allocated memory is still 184.5 MB. Free memory was 81.0 MB in the beginning and 107.8 MB in the end (delta: -26.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:51,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 107.0 MB. Free memory is still 64.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.48 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 74.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.43 ms. Allocated memory is still 107.0 MB. Free memory was 74.7 MB in the beginning and 71.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.22 ms. Allocated memory is still 107.0 MB. Free memory was 71.3 MB in the beginning and 68.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1387.73 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 68.0 MB in the beginning and 109.7 MB in the end (delta: -41.7 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12222.47 ms. Allocated memory was 138.4 MB in the beginning and 184.5 MB in the end (delta: 46.1 MB). Free memory was 109.7 MB in the beginning and 81.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. * Witness Printer took 315.03 ms. Allocated memory is still 184.5 MB. Free memory was 81.0 MB in the beginning and 107.8 MB in the end (delta: -26.8 MB). Peak memory consumption was 16.8 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 - PositiveResult [Line: 221]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12109.6ms, OverallIterations: 4, TraceHistogramMax: 4, EmptinessCheckTime: 17.0ms, AutomataDifference: 2547.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 477.7ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 40 SDtfs, 124 SDslu, 85 SDs, 0 SdLazy, 189 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 493.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2345.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 42.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 376 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 69.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 550 FormulaSimplificationTreeSizeReductionInter, 401.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 196.2ms SsaConstructionTime, 1772.6ms SatisfiabilityAnalysisTime, 5880.0ms InterpolantComputationTime, 116 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 2031 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1217 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 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 1 specifications checked. All of them hold - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((((((((((!(12 * ((4294967295 + Id_MCDC_89__Id_MCDC_96) % 4294967296) == 492) && !(12 * ((Id_MCDC_93 + 4294967295) % 4294967296) == 492)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][408 + Id_MCDC_89__Id_MCDC_95] == 24650) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][456 + Id_MCDC_89__Id_MCDC_95] <= 24644) && (4294967295 + Id_MCDC_89__Id_MCDC_96) % 4294967296 < 42) && 24647 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][156 + Id_MCDC_89__Id_MCDC_95]) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 420] == 24655) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][468 + Id_MCDC_89__Id_MCDC_95] <= 24645) && 24658 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][480 + Id_MCDC_89__Id_MCDC_95]) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 396] == 24650) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && main__Id_MCDC_119 == 0) && 24657 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][444 + Id_MCDC_89__Id_MCDC_95]) && 24656 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 432]) && Id_MCDC_89__Id_MCDC_95 == 0) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 384] <= 24649) || ((((((((((((((((0 < Id_MCDC_93 / 4294967296 + 1 && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][408 + Id_MCDC_89__Id_MCDC_95] == 24650) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][456 + Id_MCDC_89__Id_MCDC_95] <= 24644) && 24647 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][156 + Id_MCDC_89__Id_MCDC_95]) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 420] == 24655) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][468 + Id_MCDC_89__Id_MCDC_95] <= 24645) && Id_MCDC_93 <= 1) && 24658 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][480 + Id_MCDC_89__Id_MCDC_95]) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 396] == 24650) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && main__Id_MCDC_119 == 0) && Id_MCDC_89__Id_MCDC_96 <= 1) && 1 <= Id_MCDC_89__Id_MCDC_96) && 24657 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][444 + Id_MCDC_89__Id_MCDC_95]) && 24656 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 432]) && Id_MCDC_89__Id_MCDC_95 == 0) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 384] <= 24649)) || ((((((((((((((unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][408 + Id_MCDC_89__Id_MCDC_95] == 24650 && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][456 + Id_MCDC_89__Id_MCDC_95] <= 24644) && 24647 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][156 + Id_MCDC_89__Id_MCDC_95]) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 420] == 24655) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][468 + Id_MCDC_89__Id_MCDC_95] <= 24645) && 24658 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][480 + Id_MCDC_89__Id_MCDC_95]) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 396] == 24650) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && main__Id_MCDC_119 == 0) && 24657 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][444 + Id_MCDC_89__Id_MCDC_95]) && Id_MCDC_93 == 0) && 24656 <= unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 432]) && Id_MCDC_89__Id_MCDC_95 == 0) && Id_MCDC_89__Id_MCDC_96 == 0) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 384] <= 24649) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 01:21:51,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0212738a-218b-490e-a6f1-58e2f9f6da55/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...