./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f7ab7fb07c84cec955ed17f81b1e4c956a66f53 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:29:15,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:15,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:15,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:15,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:15,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:15,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:15,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:15,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:15,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:15,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:15,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:15,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:15,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:15,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:15,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:15,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:15,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:15,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:15,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:15,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:15,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:15,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:15,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:15,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:15,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:15,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:15,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:15,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:15,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:15,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:15,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:15,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:15,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:15,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:15,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:15,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:15,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:15,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:15,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:15,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:15,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:29:15,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:15,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:15,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:15,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:15,945 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:15,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:15,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:29:15,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:15,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:29:15,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:15,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:29:15,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:29:15,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:29:15,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:29:15,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:29:15,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:15,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:29:15,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:15,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:15,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:29:15,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:29:15,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:15,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:15,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:29:15,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:29:15,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:15,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:29:15,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:29:15,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:15,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f7ab7fb07c84cec955ed17f81b1e4c956a66f53 [2020-11-30 00:29:16,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:16,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:16,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:16,252 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:16,253 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:16,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2020-11-30 00:29:16,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/data/368ddfc4c/6a0a6039b22e448bb611609fab339715/FLAGac18ef437 [2020-11-30 00:29:16,937 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:16,938 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2020-11-30 00:29:16,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/data/368ddfc4c/6a0a6039b22e448bb611609fab339715/FLAGac18ef437 [2020-11-30 00:29:17,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/data/368ddfc4c/6a0a6039b22e448bb611609fab339715 [2020-11-30 00:29:17,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:17,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:29:17,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:17,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:17,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:17,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a39ed83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17, skipping insertion in model container [2020-11-30 00:29:17,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:17,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:17,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:17,570 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:17,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:17,641 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:17,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17 WrapperNode [2020-11-30 00:29:17,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:17,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:17,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:29:17,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:29:17,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:17,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:17,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:17,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:17,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... [2020-11-30 00:29:17,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:17,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:17,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:17,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:17,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:29:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:29:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:17,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:18,327 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:18,328 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-30 00:29:18,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:18 BoogieIcfgContainer [2020-11-30 00:29:18,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:18,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:29:18,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:29:18,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:29:18,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:29:17" (1/3) ... [2020-11-30 00:29:18,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f11cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:18, skipping insertion in model container [2020-11-30 00:29:18,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:17" (2/3) ... [2020-11-30 00:29:18,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f11cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:18, skipping insertion in model container [2020-11-30 00:29:18,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:18" (3/3) ... [2020-11-30 00:29:18,343 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_valuebound1.c [2020-11-30 00:29:18,359 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:29:18,364 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-30 00:29:18,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-30 00:29:18,414 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:29:18,414 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:29:18,415 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:29:18,415 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:18,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:18,415 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:29:18,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:18,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:29:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-30 00:29:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:29:18,443 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:18,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:18,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:18,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:18,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-11-30 00:29:18,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:18,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965959136] [2020-11-30 00:29:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:18,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965959136] [2020-11-30 00:29:18,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:18,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:29:18,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350167304] [2020-11-30 00:29:18,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:29:18,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:18,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:29:18,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:29:18,687 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-11-30 00:29:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:18,721 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2020-11-30 00:29:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:29:18,723 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 00:29:18,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:18,740 INFO L225 Difference]: With dead ends: 75 [2020-11-30 00:29:18,740 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 00:29:18,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:29:18,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 00:29:18,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-30 00:29:18,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 00:29:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-11-30 00:29:18,823 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2020-11-30 00:29:18,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:18,823 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-11-30 00:29:18,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:29:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-11-30 00:29:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:29:18,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:18,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:18,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:29:18,830 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:18,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-11-30 00:29:18,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:18,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926935605] [2020-11-30 00:29:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:18,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926935605] [2020-11-30 00:29:18,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:18,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:29:18,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064613799] [2020-11-30 00:29:18,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:18,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:18,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:18,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:18,995 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 4 states. [2020-11-30 00:29:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:19,217 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-11-30 00:29:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:29:19,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 00:29:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:19,220 INFO L225 Difference]: With dead ends: 54 [2020-11-30 00:29:19,220 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:29:19,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:29:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 33. [2020-11-30 00:29:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 00:29:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2020-11-30 00:29:19,231 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 7 [2020-11-30 00:29:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:19,232 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2020-11-30 00:29:19,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-11-30 00:29:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:29:19,233 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:19,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:19,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:29:19,234 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1186818322, now seen corresponding path program 1 times [2020-11-30 00:29:19,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:19,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514018750] [2020-11-30 00:29:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:19,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514018750] [2020-11-30 00:29:19,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:19,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:29:19,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495316659] [2020-11-30 00:29:19,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:19,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:19,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:19,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:19,315 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 4 states. [2020-11-30 00:29:19,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:19,565 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2020-11-30 00:29:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:29:19,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 00:29:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:19,567 INFO L225 Difference]: With dead ends: 52 [2020-11-30 00:29:19,568 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 00:29:19,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:19,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 00:29:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2020-11-30 00:29:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 00:29:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-11-30 00:29:19,578 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 9 [2020-11-30 00:29:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:19,578 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-11-30 00:29:19,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:19,579 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-11-30 00:29:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:29:19,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:19,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:19,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:29:19,580 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:19,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1928706379, now seen corresponding path program 1 times [2020-11-30 00:29:19,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:19,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365895712] [2020-11-30 00:29:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:19,603 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:29:19,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255672549] [2020-11-30 00:29:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:19,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 00:29:19,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:19,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365895712] [2020-11-30 00:29:19,772 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:29:19,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255672549] [2020-11-30 00:29:19,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:19,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:29:19,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273430469] [2020-11-30 00:29:19,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:19,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:19,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:19,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:19,779 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 4 states. [2020-11-30 00:29:19,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:19,964 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-11-30 00:29:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:29:19,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 00:29:19,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:19,966 INFO L225 Difference]: With dead ends: 72 [2020-11-30 00:29:19,967 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 00:29:19,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:19,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 00:29:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2020-11-30 00:29:19,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 00:29:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-11-30 00:29:19,980 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2020-11-30 00:29:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:19,980 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-11-30 00:29:19,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-11-30 00:29:19,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:29:19,981 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:19,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:20,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:20,183 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:20,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:20,184 INFO L82 PathProgramCache]: Analyzing trace with hash -13373041, now seen corresponding path program 1 times [2020-11-30 00:29:20,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:20,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997109749] [2020-11-30 00:29:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:20,201 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:29:20,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790332869] [2020-11-30 00:29:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:20,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 00:29:20,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:20,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997109749] [2020-11-30 00:29:20,331 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:29:20,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790332869] [2020-11-30 00:29:20,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:20,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:29:20,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799554759] [2020-11-30 00:29:20,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:20,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:20,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:20,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:20,334 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 4 states. [2020-11-30 00:29:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:20,470 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-11-30 00:29:20,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:20,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 00:29:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:20,474 INFO L225 Difference]: With dead ends: 63 [2020-11-30 00:29:20,475 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:29:20,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:20,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:29:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-11-30 00:29:20,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-30 00:29:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-11-30 00:29:20,492 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 14 [2020-11-30 00:29:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:20,492 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-11-30 00:29:20,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-11-30 00:29:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:29:20,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:20,494 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:20,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:20,700 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:20,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1886608768, now seen corresponding path program 1 times [2020-11-30 00:29:20,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:20,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733684371] [2020-11-30 00:29:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:20,717 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:29:20,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440039095] [2020-11-30 00:29:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:20,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:29:20,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:20,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733684371] [2020-11-30 00:29:20,861 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:29:20,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440039095] [2020-11-30 00:29:20,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:29:20,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 00:29:20,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448407784] [2020-11-30 00:29:20,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:29:20,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:20,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:29:20,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:20,878 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 5 states. [2020-11-30 00:29:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:21,121 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2020-11-30 00:29:21,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:29:21,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-30 00:29:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:21,124 INFO L225 Difference]: With dead ends: 108 [2020-11-30 00:29:21,125 INFO L226 Difference]: Without dead ends: 71 [2020-11-30 00:29:21,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-30 00:29:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2020-11-30 00:29:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-30 00:29:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2020-11-30 00:29:21,144 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 18 [2020-11-30 00:29:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:21,145 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2020-11-30 00:29:21,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:29:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2020-11-30 00:29:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 00:29:21,146 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:21,147 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:21,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:21,348 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:21,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:21,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1314135125, now seen corresponding path program 2 times [2020-11-30 00:29:21,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:21,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844277592] [2020-11-30 00:29:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:21,365 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:29:21,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018267260] [2020-11-30 00:29:21,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:21,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:29:21,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:29:21,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 00:29:21,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:21,528 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:29:21,528 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:29:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:21,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844277592] [2020-11-30 00:29:21,662 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:29:21,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018267260] [2020-11-30 00:29:21,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:21,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:21,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603247206] [2020-11-30 00:29:21,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:21,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:21,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:21,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:21,665 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand 6 states. [2020-11-30 00:29:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:21,894 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-11-30 00:29:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:29:21,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-30 00:29:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:21,896 INFO L225 Difference]: With dead ends: 70 [2020-11-30 00:29:21,896 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 00:29:21,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:21,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 00:29:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-30 00:29:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 00:29:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-11-30 00:29:21,910 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 25 [2020-11-30 00:29:21,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:21,911 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-11-30 00:29:21,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:21,911 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-11-30 00:29:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 00:29:21,913 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:21,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:22,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:22,136 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:22,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1085203663, now seen corresponding path program 1 times [2020-11-30 00:29:22,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:22,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445028435] [2020-11-30 00:29:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:22,152 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:29:22,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619954882] [2020-11-30 00:29:22,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:22,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-30 00:29:22,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:22,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445028435] [2020-11-30 00:29:22,373 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:29:22,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619954882] [2020-11-30 00:29:22,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:29:22,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-30 00:29:22,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419041669] [2020-11-30 00:29:22,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:22,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:22,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:22,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:22,376 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 6 states. [2020-11-30 00:29:22,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:22,591 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-11-30 00:29:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:29:22,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-11-30 00:29:22,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:22,592 INFO L225 Difference]: With dead ends: 35 [2020-11-30 00:29:22,593 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 00:29:22,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 00:29:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-30 00:29:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 00:29:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2020-11-30 00:29:22,601 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 27 [2020-11-30 00:29:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:22,602 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2020-11-30 00:29:22,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-11-30 00:29:22,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 00:29:22,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:22,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:22,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:22,804 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:29:22,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:22,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1129109896, now seen corresponding path program 1 times [2020-11-30 00:29:22,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:22,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267271076] [2020-11-30 00:29:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:22,829 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:29:22,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232369402] [2020-11-30 00:29:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:22,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-30 00:29:22,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:23,014 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:29:23,014 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:29:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:23,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267271076] [2020-11-30 00:29:23,131 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:29:23,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232369402] [2020-11-30 00:29:23,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:29:23,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-30 00:29:23,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132960134] [2020-11-30 00:29:23,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:29:23,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:23,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:29:23,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:23,134 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 9 states. [2020-11-30 00:29:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:23,593 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-11-30 00:29:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:29:23,593 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-11-30 00:29:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:23,594 INFO L225 Difference]: With dead ends: 33 [2020-11-30 00:29:23,594 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:29:23,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:29:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:29:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:29:23,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:29:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:29:23,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-11-30 00:29:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:23,596 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:29:23,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:29:23,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:29:23,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:29:23,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:23,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:29:24,195 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-11-30 00:29:24,320 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2020-11-30 00:29:24,599 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-11-30 00:29:24,788 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-11-30 00:29:25,007 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-11-30 00:29:25,183 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2020-11-30 00:29:25,197 INFO L277 CegarLoopResult]: At program point L60(lines 22 61) the Hoare annotation is: true [2020-11-30 00:29:25,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,198 INFO L274 CegarLoopResult]: For program point L52(lines 52 55) no Hoare annotation was computed. [2020-11-30 00:29:25,198 INFO L274 CegarLoopResult]: For program point L52-2(lines 22 61) no Hoare annotation was computed. [2020-11-30 00:29:25,198 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-30 00:29:25,198 INFO L274 CegarLoopResult]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2020-11-30 00:29:25,198 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,199 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,200 INFO L270 CegarLoopResult]: At program point L15-1(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (<= ULTIMATE.start_main_~A~0 1)) (.cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0)) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5 .cse6))) [2020-11-30 00:29:25,200 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,200 INFO L270 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (<= ULTIMATE.start_main_~A~0 1)) (.cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0)) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5 .cse6))) [2020-11-30 00:29:25,200 INFO L274 CegarLoopResult]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,201 INFO L270 CegarLoopResult]: At program point L15-5(line 38) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (<= ULTIMATE.start_main_~A~0 1)) (.cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0)) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5 .cse6))) [2020-11-30 00:29:25,201 INFO L274 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,201 INFO L270 CegarLoopResult]: At program point L15-7(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (<= ULTIMATE.start_main_~A~0 1)) (.cse7 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)) (.cse8 (= ULTIMATE.start_main_~p~0 1)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0)) (and .cse0 .cse3 .cse7 .cse8 .cse4 .cse6) (and (= ULTIMATE.start_main_~q~0 1) .cse1 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse7 .cse8 .cse5 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~r~0))))) [2020-11-30 00:29:25,201 INFO L274 CegarLoopResult]: For program point L15-8(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,202 INFO L270 CegarLoopResult]: At program point L15-9(line 48) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (<= ULTIMATE.start_main_~A~0 1)) (.cse7 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)) (.cse8 (= ULTIMATE.start_main_~p~0 1)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~p~0 2) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0)) (and .cse0 .cse3 .cse7 .cse8 .cse4 .cse6) (and (= ULTIMATE.start_main_~q~0 1) .cse1 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse7 .cse8 .cse5 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~r~0))))) [2020-11-30 00:29:25,202 INFO L274 CegarLoopResult]: For program point L15-10(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,202 INFO L270 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~B~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1)) [2020-11-30 00:29:25,202 INFO L274 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:29:25,202 INFO L277 CegarLoopResult]: At program point L15-13(lines 14 20) the Hoare annotation is: true [2020-11-30 00:29:25,202 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,203 INFO L274 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,204 INFO L274 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:29:25,204 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:29:25,204 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (<= ULTIMATE.start_main_~A~0 1)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse5 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 2) .cse3 .cse4 .cse5 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0)))) [2020-11-30 00:29:25,204 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:29:25,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:29:25 BoogieIcfgContainer [2020-11-30 00:29:25,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:29:25,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:29:25,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:29:25,251 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:29:25,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:18" (3/4) ... [2020-11-30 00:29:25,254 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:29:25,268 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 00:29:25,268 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:29:25,269 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:29:25,269 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:29:25,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7624cc7d-7781-4a1a-8c10-c1e926d1b22e/bin/uautomizer/witness.graphml [2020-11-30 00:29:25,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:29:25,337 INFO L168 Benchmark]: Toolchain (without parser) took 8036.67 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 60.0 MB in the beginning and 60.9 MB in the end (delta: -886.2 kB). Peak memory consumption was 67.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:25,338 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:25,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.39 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 59.8 MB in the beginning and 108.7 MB in the end (delta: -49.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:25,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.52 ms. Allocated memory is still 132.1 MB. Free memory was 108.7 MB in the beginning and 107.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:25,340 INFO L168 Benchmark]: Boogie Preprocessor took 34.97 ms. Allocated memory is still 132.1 MB. Free memory was 107.3 MB in the beginning and 106.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:25,341 INFO L168 Benchmark]: RCFGBuilder took 594.83 ms. Allocated memory is still 132.1 MB. Free memory was 106.0 MB in the beginning and 89.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:25,341 INFO L168 Benchmark]: TraceAbstraction took 6917.70 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 89.7 MB in the beginning and 64.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:25,342 INFO L168 Benchmark]: Witness Printer took 85.40 ms. Allocated memory is still 159.4 MB. Free memory was 64.1 MB in the beginning and 60.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:25,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.39 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 59.8 MB in the beginning and 108.7 MB in the end (delta: -49.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.52 ms. Allocated memory is still 132.1 MB. Free memory was 108.7 MB in the beginning and 107.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.97 ms. Allocated memory is still 132.1 MB. Free memory was 107.3 MB in the beginning and 106.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 594.83 ms. Allocated memory is still 132.1 MB. Free memory was 106.0 MB in the beginning and 89.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6917.70 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 89.7 MB in the beginning and 64.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 72.3 MB. Max. memory is 16.1 GB. * Witness Printer took 85.40 ms. Allocated memory is still 159.4 MB. Free memory was 64.1 MB in the beginning and 60.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && p == 2) && q == 0) && cond == 1) && A == r) && B * 2 == d) || ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((B == 1 && 0 <= A) && A <= 1) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) || ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && p == 2) && q == 0) && cond == 1) && A == r) && B * 2 == d) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && p == 2) && q == 0) && cond == 1) && A == r) && B * 2 == d) || (((((B == 1 && 1 <= cond) && B == d) && p == 1) && q == 0) && A == r)) || ((((((((q == 1 && 0 <= A) && A <= 1) && 1 == cond) && B == d) && p == 1) && cond == 1) && d == 1) && A == B + r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && p == 2) && q == 0) && cond == 1) && A == r) && B * 2 == d) || ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && p == 2) && q == 0) && cond == 1) && A == r) && B * 2 == d) || (((((B == 1 && 1 <= cond) && B == d) && p == 1) && q == 0) && A == r)) || ((((((((q == 1 && 0 <= A) && A <= 1) && 1 == cond) && B == d) && p == 1) && cond == 1) && d == 1) && A == B + r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && p == 2) && q == 0) && cond == 1) && A == r) && B * 2 == d) || ((((((((B == 1 && 0 <= A) && A <= 1) && 1 <= cond) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((B == 1 && !(0 == cond)) && B == d) && p == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 196 SDtfs, 228 SDslu, 227 SDs, 0 SdLazy, 455 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 54 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 27 NumberOfFragments, 409 HoareAnnotationTreeSize, 9 FomulaSimplifications, 471 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 166 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 29403 SizeOfPredicates, 39 NumberOfNonLiveVariables, 572 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 19/46 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...