./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a2f1102c08ad072b808cfc472937f1cd1560bb61fc22de7fb77e42f10991bfd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:44:47,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:44:47,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:44:47,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:44:47,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:44:47,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:44:47,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:44:47,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:44:47,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:44:47,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:44:47,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:44:47,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:44:47,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:44:47,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:44:47,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:44:47,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:44:47,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:44:47,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:44:47,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:44:47,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:44:47,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:44:47,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:44:47,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:44:47,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:44:47,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:44:47,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:44:47,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:44:47,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:44:47,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:44:47,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:44:47,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:44:47,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:44:47,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:44:47,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:44:47,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:44:47,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:44:47,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:44:47,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:44:47,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:44:47,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:44:47,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:44:47,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 13:44:47,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:44:47,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:44:47,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:44:47,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:44:47,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:44:47,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:44:47,939 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:44:47,940 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:44:47,940 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:44:47,940 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:44:47,940 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:44:47,941 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:44:47,941 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:44:47,941 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:44:47,941 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:44:47,942 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:44:47,942 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:44:47,942 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:44:47,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:44:47,943 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:44:47,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:44:47,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:44:47,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:44:47,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:44:47,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:44:47,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:44:47,945 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:44:47,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:44:47,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:44:47,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:44:47,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:44:47,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:44:47,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:44:47,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:44:47,947 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:44:47,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:44:47,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:44:47,948 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:44:47,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:44:47,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:44:47,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:44:47,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2f1102c08ad072b808cfc472937f1cd1560bb61fc22de7fb77e42f10991bfd [2022-11-23 13:44:48,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:44:48,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:44:48,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:44:48,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:44:48,300 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:44:48,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec0_product33.cil.c [2022-11-23 13:44:51,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:44:51,677 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:44:51,678 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/sv-benchmarks/c/product-lines/email_spec0_product33.cil.c [2022-11-23 13:44:51,709 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/data/6bc9ac8f0/51c360d94c284978bb0d264ab5943a92/FLAG642ff91e0 [2022-11-23 13:44:51,729 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/data/6bc9ac8f0/51c360d94c284978bb0d264ab5943a92 [2022-11-23 13:44:51,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:44:51,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:44:51,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:44:51,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:44:51,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:44:51,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:51" (1/1) ... [2022-11-23 13:44:51,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2081246d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:51, skipping insertion in model container [2022-11-23 13:44:51,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:51" (1/1) ... [2022-11-23 13:44:51,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:44:51,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:44:52,242 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/sv-benchmarks/c/product-lines/email_spec0_product33.cil.c[31228,31241] [2022-11-23 13:44:52,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:44:52,455 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:44:52,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/sv-benchmarks/c/product-lines/email_spec0_product33.cil.c[31228,31241] [2022-11-23 13:44:52,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:44:52,634 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:44:52,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52 WrapperNode [2022-11-23 13:44:52,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:44:52,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:44:52,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:44:52,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:44:52,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,730 INFO L138 Inliner]: procedures = 134, calls = 227, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1061 [2022-11-23 13:44:52,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:44:52,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:44:52,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:44:52,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:44:52,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,799 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:44:52,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:44:52,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:44:52,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:44:52,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (1/1) ... [2022-11-23 13:44:52,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:44:52,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:44:52,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:44:52,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:44:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 13:44:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 13:44:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 13:44:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 13:44:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 13:44:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 13:44:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 13:44:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 13:44:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 13:44:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 13:44:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 13:44:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 13:44:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 13:44:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 13:44:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 13:44:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 13:44:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 13:44:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 13:44:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 13:44:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 13:44:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 13:44:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 13:44:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 13:44:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 13:44:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 13:44:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 13:44:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 13:44:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:44:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 13:44:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 13:44:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 13:44:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 13:44:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 13:44:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 13:44:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 13:44:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 13:44:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 13:44:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 13:44:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 13:44:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 13:44:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 13:44:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 13:44:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 13:44:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 13:44:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 13:44:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 13:44:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 13:44:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 13:44:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:44:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 13:44:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 13:44:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:44:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:44:53,201 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:44:53,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:44:54,293 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:44:54,865 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:44:54,866 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:44:54,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:54 BoogieIcfgContainer [2022-11-23 13:44:54,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:44:54,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:44:54,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:44:54,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:44:54,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:44:51" (1/3) ... [2022-11-23 13:44:54,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655ce257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:44:54, skipping insertion in model container [2022-11-23 13:44:54,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:52" (2/3) ... [2022-11-23 13:44:54,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@655ce257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:44:54, skipping insertion in model container [2022-11-23 13:44:54,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:54" (3/3) ... [2022-11-23 13:44:54,879 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product33.cil.c [2022-11-23 13:44:54,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:44:54,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:44:54,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:44:54,991 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f1e7508, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:44:54,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:44:54,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 125 states have internal predecessors, (158), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 13:44:55,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-23 13:44:55,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:44:55,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:44:55,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:44:55,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:44:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash -897121843, now seen corresponding path program 1 times [2022-11-23 13:44:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:44:55,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356061541] [2022-11-23 13:44:55,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:44:55,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:44:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:44:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:44:55,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:44:55,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356061541] [2022-11-23 13:44:55,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356061541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:44:55,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:44:55,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:44:55,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351745759] [2022-11-23 13:44:55,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:44:55,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 13:44:55,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:44:55,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 13:44:55,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:44:55,600 INFO L87 Difference]: Start difference. First operand has 209 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 125 states have internal predecessors, (158), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:44:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:44:55,772 INFO L93 Difference]: Finished difference Result 335 states and 442 transitions. [2022-11-23 13:44:55,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 13:44:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2022-11-23 13:44:55,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:44:55,787 INFO L225 Difference]: With dead ends: 335 [2022-11-23 13:44:55,788 INFO L226 Difference]: Without dead ends: 206 [2022-11-23 13:44:55,792 INFO L412 NwaCegarLoop]: 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 [2022-11-23 13:44:55,796 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:44:55,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:44:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-23 13:44:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-11-23 13:44:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 122 states have internal predecessors, (152), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-23 13:44:55,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 275 transitions. [2022-11-23 13:44:55,859 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 275 transitions. Word has length 94 [2022-11-23 13:44:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:44:55,863 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 275 transitions. [2022-11-23 13:44:55,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:44:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 275 transitions. [2022-11-23 13:44:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-23 13:44:55,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:44:55,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:44:55,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:44:55,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:44:55,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:44:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash -598098280, now seen corresponding path program 1 times [2022-11-23 13:44:55,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:44:55,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754631693] [2022-11-23 13:44:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:44:55,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:44:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:44:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:44:56,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:44:56,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754631693] [2022-11-23 13:44:56,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754631693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:44:56,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:44:56,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:44:56,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074776280] [2022-11-23 13:44:56,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:44:56,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:44:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:44:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:44:56,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:44:56,321 INFO L87 Difference]: Start difference. First operand 206 states and 275 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:44:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:44:56,523 INFO L93 Difference]: Finished difference Result 331 states and 430 transitions. [2022-11-23 13:44:56,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:44:56,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2022-11-23 13:44:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:44:56,531 INFO L225 Difference]: With dead ends: 331 [2022-11-23 13:44:56,531 INFO L226 Difference]: Without dead ends: 208 [2022-11-23 13:44:56,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:44:56,542 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:44:56,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 471 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:44:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-23 13:44:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-11-23 13:44:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 124 states have internal predecessors, (154), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-23 13:44:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 277 transitions. [2022-11-23 13:44:56,592 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 277 transitions. Word has length 95 [2022-11-23 13:44:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:44:56,592 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 277 transitions. [2022-11-23 13:44:56,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:44:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 277 transitions. [2022-11-23 13:44:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-23 13:44:56,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:44:56,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:44:56,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:44:56,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:44:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:44:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1457485321, now seen corresponding path program 1 times [2022-11-23 13:44:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:44:56,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436876714] [2022-11-23 13:44:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:44:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:44:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:44:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:44:56,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:44:56,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436876714] [2022-11-23 13:44:56,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436876714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:44:56,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:44:56,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:44:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767379315] [2022-11-23 13:44:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:44:56,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:44:56,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:44:56,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:44:56,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:44:56,833 INFO L87 Difference]: Start difference. First operand 208 states and 277 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:44:56,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:44:56,979 INFO L93 Difference]: Finished difference Result 446 states and 613 transitions. [2022-11-23 13:44:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:44:56,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 100 [2022-11-23 13:44:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:44:56,986 INFO L225 Difference]: With dead ends: 446 [2022-11-23 13:44:56,987 INFO L226 Difference]: Without dead ends: 256 [2022-11-23 13:44:56,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:44:56,995 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 57 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:44:56,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:44:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-23 13:44:57,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 251. [2022-11-23 13:44:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 153 states have (on average 1.3529411764705883) internal successors, (207), 156 states have internal predecessors, (207), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-23 13:44:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 352 transitions. [2022-11-23 13:44:57,030 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 352 transitions. Word has length 100 [2022-11-23 13:44:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:44:57,030 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 352 transitions. [2022-11-23 13:44:57,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:44:57,031 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 352 transitions. [2022-11-23 13:44:57,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-23 13:44:57,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:44:57,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:44:57,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:44:57,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:44:57,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:44:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1807438424, now seen corresponding path program 1 times [2022-11-23 13:44:57,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:44:57,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640570306] [2022-11-23 13:44:57,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:44:57,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:44:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:44:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:44:57,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:44:57,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640570306] [2022-11-23 13:44:57,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640570306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:44:57,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513428747] [2022-11-23 13:44:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:44:57,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:44:57,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:44:57,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:44:57,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:44:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:44:57,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:44:57,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:44:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:44:57,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:44:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:44:57,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513428747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:44:57,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1497602650] [2022-11-23 13:44:57,932 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2022-11-23 13:44:57,932 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:44:57,936 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:44:57,942 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:44:57,942 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:45:35,903 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-23 13:45:36,201 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 13:45:36,590 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:45:54,636 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:46:18,444 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 486 DAG size of output: 306 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:46:23,871 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:46:32,415 WARN L233 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 508 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:46:53,194 WARN L233 SmtUtils]: Spent 20.46s on a formula simplification. DAG size of input: 593 DAG size of output: 463 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:06,400 WARN L233 SmtUtils]: Spent 12.85s on a formula simplification. DAG size of input: 595 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:13,251 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 344 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:20,120 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 342 DAG size of output: 340 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:29,180 WARN L233 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 545 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:29,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1497602650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:29,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:47:29,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-23 13:47:29,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661993299] [2022-11-23 13:47:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:29,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 13:47:29,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:29,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 13:47:29,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-23 13:47:29,193 INFO L87 Difference]: Start difference. First operand 251 states and 352 transitions. Second operand has 21 states, 16 states have (on average 3.0625) internal successors, (49), 15 states have internal predecessors, (49), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 13:47:40,988 WARN L233 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 503 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:50,675 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 489 DAG size of output: 321 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:47:56,285 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 480 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:48:04,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:48:04,426 INFO L93 Difference]: Finished difference Result 585 states and 872 transitions. [2022-11-23 13:48:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 13:48:04,427 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.0625) internal successors, (49), 15 states have internal predecessors, (49), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 101 [2022-11-23 13:48:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:48:04,429 INFO L225 Difference]: With dead ends: 585 [2022-11-23 13:48:04,429 INFO L226 Difference]: Without dead ends: 352 [2022-11-23 13:48:04,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 138.1s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-23 13:48:04,431 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 225 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:48:04,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 3354 Invalid, 1783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-23 13:48:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-23 13:48:04,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 279. [2022-11-23 13:48:04,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 183 states have internal predecessors, (246), 73 states have call successors, (73), 25 states have call predecessors, (73), 25 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-23 13:48:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 391 transitions. [2022-11-23 13:48:04,636 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 391 transitions. Word has length 101 [2022-11-23 13:48:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:48:04,637 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 391 transitions. [2022-11-23 13:48:04,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.0625) internal successors, (49), 15 states have internal predecessors, (49), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 13:48:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 391 transitions. [2022-11-23 13:48:04,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-23 13:48:04,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:48:04,642 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:48:04,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 13:48:04,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:48:04,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:48:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:48:04,850 INFO L85 PathProgramCache]: Analyzing trace with hash 754784231, now seen corresponding path program 1 times [2022-11-23 13:48:04,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:48:04,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348767433] [2022-11-23 13:48:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:04,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:48:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 13:48:05,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:48:05,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348767433] [2022-11-23 13:48:05,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348767433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:48:05,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727997601] [2022-11-23 13:48:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:48:05,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:48:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:48:05,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:48:05,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:48:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:48:05,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:48:05,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:48:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 13:48:05,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:48:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 13:48:05,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727997601] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:48:05,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1063681124] [2022-11-23 13:48:05,564 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-23 13:48:05,564 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:48:05,565 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:48:05,565 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:48:05,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:48:45,265 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-23 13:48:45,548 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-23 13:48:45,829 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs [2022-11-23 13:48:47,611 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 262 for LOIs [2022-11-23 13:49:26,458 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 451 for LOIs [2022-11-23 13:49:26,996 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 244 for LOIs [2022-11-23 13:49:27,646 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 244 for LOIs [2022-11-23 13:49:27,685 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 242 for LOIs [2022-11-23 13:49:27,750 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 422 for LOIs [2022-11-23 13:49:27,979 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-23 13:49:28,025 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-23 13:49:29,795 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:50:10,116 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 486 DAG size of output: 306 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:50:15,528 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 498 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:50:24,095 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 508 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:50:44,671 WARN L233 SmtUtils]: Spent 20.27s on a formula simplification. DAG size of input: 587 DAG size of output: 454 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:50:57,808 WARN L233 SmtUtils]: Spent 12.78s on a formula simplification. DAG size of input: 589 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:51:27,916 WARN L233 SmtUtils]: Spent 12.92s on a formula simplification. DAG size of input: 472 DAG size of output: 360 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:51:57,861 WARN L233 SmtUtils]: Spent 11.42s on a formula simplification. DAG size of input: 451 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:52:10,075 WARN L233 SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 478 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:52:37,316 WARN L233 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 531 DAG size of output: 370 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:52:44,921 WARN L233 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 533 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:52:53,970 WARN L233 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 575 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:53:05,588 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 585 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:53:13,088 WARN L233 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 593 DAG size of output: 398 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:53:53,129 WARN L233 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 644 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:54:05,460 WARN L233 SmtUtils]: Spent 11.28s on a formula simplification. DAG size of input: 641 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:54:16,649 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 487 DAG size of output: 451 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:54:23,894 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 518 DAG size of output: 464 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:54:23,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1063681124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:23,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:54:23,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [4, 4, 4] total 73 [2022-11-23 13:54:23,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812968595] [2022-11-23 13:54:23,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:23,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-11-23 13:54:23,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:23,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-11-23 13:54:23,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=5017, Unknown=0, NotChecked=0, Total=5256 [2022-11-23 13:54:23,906 INFO L87 Difference]: Start difference. First operand 279 states and 391 transitions. Second operand has 68 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 43 states have internal predecessors, (52), 20 states have call successors, (21), 11 states have call predecessors, (21), 9 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-23 13:54:43,600 WARN L233 SmtUtils]: Spent 15.82s on a formula simplification. DAG size of input: 494 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:54:51,770 WARN L233 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 476 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:54:59,919 WARN L233 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 474 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:55:08,274 WARN L233 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 472 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:55:41,298 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 580 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:55:54,829 WARN L233 SmtUtils]: Spent 12.28s on a formula simplification. DAG size of input: 590 DAG size of output: 322 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:56:04,839 WARN L233 SmtUtils]: Spent 9.45s on a formula simplification. DAG size of input: 582 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:57:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:57:04,020 INFO L93 Difference]: Finished difference Result 746 states and 1105 transitions. [2022-11-23 13:57:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-11-23 13:57:04,021 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 43 states have internal predecessors, (52), 20 states have call successors, (21), 11 states have call predecessors, (21), 9 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 107 [2022-11-23 13:57:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:57:04,025 INFO L225 Difference]: With dead ends: 746 [2022-11-23 13:57:04,025 INFO L226 Difference]: Without dead ends: 513 [2022-11-23 13:57:04,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 407.2s TimeCoverageRelationStatistics Valid=337, Invalid=7495, Unknown=0, NotChecked=0, Total=7832 [2022-11-23 13:57:04,029 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 363 mSDsluCounter, 7983 mSDsCounter, 0 mSdLazyCounter, 10429 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 10495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 10429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:57:04,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 8271 Invalid, 10495 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [66 Valid, 10429 Invalid, 0 Unknown, 0 Unchecked, 45.8s Time] [2022-11-23 13:57:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-11-23 13:57:04,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 417. [2022-11-23 13:57:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 288 states have (on average 1.4027777777777777) internal successors, (404), 293 states have internal predecessors, (404), 94 states have call successors, (94), 35 states have call predecessors, (94), 34 states have return successors, (94), 90 states have call predecessors, (94), 93 states have call successors, (94) [2022-11-23 13:57:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 592 transitions. [2022-11-23 13:57:04,339 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 592 transitions. Word has length 107 [2022-11-23 13:57:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:57:04,340 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 592 transitions. [2022-11-23 13:57:04,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 43 states have internal predecessors, (52), 20 states have call successors, (21), 11 states have call predecessors, (21), 9 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-23 13:57:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 592 transitions. [2022-11-23 13:57:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-23 13:57:04,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:57:04,343 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:57:04,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:57:04,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:57:04,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:57:04,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:57:04,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1192088534, now seen corresponding path program 1 times [2022-11-23 13:57:04,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:57:04,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186289489] [2022-11-23 13:57:04,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:57:04,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:57:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:57:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:57:04,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:57:04,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186289489] [2022-11-23 13:57:04,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186289489] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:57:04,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847524535] [2022-11-23 13:57:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:57:04,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:57:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:57:04,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:57:04,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0348d02a-944d-44f9-aa8f-8906d449f2ff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:57:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:57:05,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1307 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:57:05,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:57:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:57:05,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:57:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 13:57:05,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847524535] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:57:05,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1263615746] [2022-11-23 13:57:05,306 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-11-23 13:57:05,306 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:57:05,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:57:05,307 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:57:05,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:57:40,030 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-23 13:57:40,322 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 234 for LOIs [2022-11-23 13:57:40,383 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 243 for LOIs [2022-11-23 13:57:40,448 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 249 for LOIs [2022-11-23 13:57:40,524 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 13:57:40,806 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:57:58,596 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 13:58:22,223 WARN L233 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 486 DAG size of output: 306 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)