./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh --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 e61661fc2d58041f16237a6d2ff2f3d5f72c7660b85c9fdf3f096a51b709ec23 --- 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-2329fc7 [2022-12-14 14:26:45,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:26:45,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:26:45,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:26:45,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:26:45,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:26:45,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:26:45,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:26:45,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:26:45,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:26:45,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:26:45,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:26:45,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:26:45,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:26:45,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:26:45,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:26:45,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:26:45,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:26:45,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:26:45,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:26:45,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:26:45,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:26:45,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:26:45,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:26:45,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:26:45,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:26:45,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:26:45,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:26:45,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:26:45,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:26:45,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:26:45,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:26:45,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:26:45,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:26:45,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:26:45,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:26:45,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:26:45,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:26:45,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:26:45,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:26:45,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:26:45,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:26:45,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:26:45,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:26:45,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:26:45,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:26:45,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:26:45,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:26:45,682 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:26:45,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:26:45,683 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:26:45,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:26:45,683 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:26:45,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:26:45,684 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:26:45,684 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:26:45,684 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:26:45,684 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:26:45,684 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:26:45,685 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:26:45,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:26:45,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:26:45,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:26:45,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:26:45,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:26:45,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:26:45,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:26:45,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:26:45,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:26:45,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:26:45,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:26:45,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:26:45,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:26:45,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:26:45,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:26:45,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:26:45,688 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:26:45,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:26:45,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:26:45,689 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:26:45,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:26:45,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:26:45,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:26:45,689 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_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e61661fc2d58041f16237a6d2ff2f3d5f72c7660b85c9fdf3f096a51b709ec23 [2022-12-14 14:26:45,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:26:45,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:26:45,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:26:45,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:26:45,913 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:26:45,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec6_product22.cil.c [2022-12-14 14:26:48,476 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:26:48,716 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:26:48,716 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/sv-benchmarks/c/product-lines/email_spec6_product22.cil.c [2022-12-14 14:26:48,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/data/a1aa0235a/7cd5af3e12f641da9da6ec61134fb970/FLAG403fa165c [2022-12-14 14:26:48,739 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/data/a1aa0235a/7cd5af3e12f641da9da6ec61134fb970 [2022-12-14 14:26:48,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:26:48,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:26:48,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:26:48,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:26:48,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:26:48,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:26:48" (1/1) ... [2022-12-14 14:26:48,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec4feb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:48, skipping insertion in model container [2022-12-14 14:26:48,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:26:48" (1/1) ... [2022-12-14 14:26:48,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:26:48,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:26:48,997 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,000 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,001 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_99092fa0-a7ed-4db8-a2fe-8866827f22cb/sv-benchmarks/c/product-lines/email_spec6_product22.cil.c[21483,21496] [2022-12-14 14:26:49,103 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,104 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,107 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,118 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,121 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,128 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,129 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:26:49,147 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:26:49,180 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,181 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,182 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_99092fa0-a7ed-4db8-a2fe-8866827f22cb/sv-benchmarks/c/product-lines/email_spec6_product22.cil.c[21483,21496] [2022-12-14 14:26:49,206 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,207 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,209 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,212 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,213 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,217 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,217 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:26:49,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:26:49,239 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:26:49,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49 WrapperNode [2022-12-14 14:26:49,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:26:49,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:26:49,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:26:49,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:26:49,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,297 INFO L138 Inliner]: procedures = 129, calls = 213, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 1006 [2022-12-14 14:26:49,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:26:49,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:26:49,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:26:49,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:26:49,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:26:49,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:26:49,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:26:49,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:26:49,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (1/1) ... [2022-12-14 14:26:49,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:26:49,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:26:49,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:26:49,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 14:26:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 14:26:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 14:26:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 14:26:49,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 14:26:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 14:26:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 14:26:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 14:26:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 14:26:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 14:26:49,402 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 14:26:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 14:26:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 14:26:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 14:26:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 14:26:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:26:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 14:26:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 14:26:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-14 14:26:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-14 14:26:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 14:26:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 14:26:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:26:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 14:26:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 14:26:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 14:26:49,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 14:26:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 14:26:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 14:26:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 14:26:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 14:26:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 14:26:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 14:26:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 14:26:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 14:26:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 14:26:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 14:26:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 14:26:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 14:26:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:26:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 14:26:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 14:26:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:26:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:26:49,573 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:26:49,575 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:26:50,105 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:26:50,365 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:26:50,366 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:26:50,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:26:50 BoogieIcfgContainer [2022-12-14 14:26:50,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:26:50,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:26:50,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:26:50,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:26:50,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:26:48" (1/3) ... [2022-12-14 14:26:50,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e2f6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:26:50, skipping insertion in model container [2022-12-14 14:26:50,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:49" (2/3) ... [2022-12-14 14:26:50,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e2f6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:26:50, skipping insertion in model container [2022-12-14 14:26:50,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:26:50" (3/3) ... [2022-12-14 14:26:50,375 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product22.cil.c [2022-12-14 14:26:50,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:26:50,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:26:50,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:26:50,438 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;@752a4ec9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:26:50,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:26:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 106 states have (on average 1.330188679245283) internal successors, (141), 110 states have internal predecessors, (141), 54 states have call successors, (54), 20 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-12-14 14:26:50,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 14:26:50,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:50,453 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 14:26:50,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:50,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:50,458 INFO L85 PathProgramCache]: Analyzing trace with hash 564293384, now seen corresponding path program 1 times [2022-12-14 14:26:50,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:50,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634197844] [2022-12-14 14:26:50,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:50,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:26:50,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:50,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634197844] [2022-12-14 14:26:50,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634197844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:50,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:50,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:26:50,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416263376] [2022-12-14 14:26:50,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:50,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:26:50,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:26:50,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:26:50,768 INFO L87 Difference]: Start difference. First operand has 182 states, 106 states have (on average 1.330188679245283) internal successors, (141), 110 states have internal predecessors, (141), 54 states have call successors, (54), 20 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:26:50,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:50,873 INFO L93 Difference]: Finished difference Result 281 states and 376 transitions. [2022-12-14 14:26:50,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:26:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2022-12-14 14:26:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:50,883 INFO L225 Difference]: With dead ends: 281 [2022-12-14 14:26:50,883 INFO L226 Difference]: Without dead ends: 179 [2022-12-14 14:26:50,886 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 [2022-12-14 14:26:50,888 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:50,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:26:50,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-14 14:26:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-12-14 14:26:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 107 states have internal predecessors, (135), 54 states have call successors, (54), 20 states have call predecessors, (54), 20 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 14:26:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 242 transitions. [2022-12-14 14:26:50,927 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 242 transitions. Word has length 72 [2022-12-14 14:26:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:50,928 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 242 transitions. [2022-12-14 14:26:50,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:26:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 242 transitions. [2022-12-14 14:26:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 14:26:50,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:50,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 14:26:50,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:26:50,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash -323158131, now seen corresponding path program 1 times [2022-12-14 14:26:50,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:50,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675833688] [2022-12-14 14:26:50,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:26:51,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:51,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675833688] [2022-12-14 14:26:51,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675833688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:51,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:51,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:26:51,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894077072] [2022-12-14 14:26:51,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:51,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:26:51,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:51,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:26:51,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:26:51,069 INFO L87 Difference]: Start difference. First operand 179 states and 242 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:26:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:51,169 INFO L93 Difference]: Finished difference Result 277 states and 364 transitions. [2022-12-14 14:26:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:26:51,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2022-12-14 14:26:51,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:51,172 INFO L225 Difference]: With dead ends: 277 [2022-12-14 14:26:51,172 INFO L226 Difference]: Without dead ends: 181 [2022-12-14 14:26:51,173 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 [2022-12-14 14:26:51,174 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:51,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 415 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:26:51,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-12-14 14:26:51,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-12-14 14:26:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 109 states have internal predecessors, (137), 54 states have call successors, (54), 20 states have call predecessors, (54), 20 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 14:26:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 244 transitions. [2022-12-14 14:26:51,192 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 244 transitions. Word has length 73 [2022-12-14 14:26:51,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:51,193 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 244 transitions. [2022-12-14 14:26:51,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:26:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 244 transitions. [2022-12-14 14:26:51,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 14:26:51,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:51,196 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 14:26:51,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:26:51,196 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:51,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:51,197 INFO L85 PathProgramCache]: Analyzing trace with hash 485546462, now seen corresponding path program 1 times [2022-12-14 14:26:51,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:51,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605170818] [2022-12-14 14:26:51,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:51,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:51,300 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:26:51,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605170818] [2022-12-14 14:26:51,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605170818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:51,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:51,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:26:51,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339265886] [2022-12-14 14:26:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:51,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:26:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:26:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:26:51,303 INFO L87 Difference]: Start difference. First operand 181 states and 244 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:26:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:51,393 INFO L93 Difference]: Finished difference Result 392 states and 547 transitions. [2022-12-14 14:26:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:26:51,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2022-12-14 14:26:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:51,395 INFO L225 Difference]: With dead ends: 392 [2022-12-14 14:26:51,395 INFO L226 Difference]: Without dead ends: 229 [2022-12-14 14:26:51,396 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 [2022-12-14 14:26:51,398 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 57 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:51,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 431 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:26:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-12-14 14:26:51,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 224. [2022-12-14 14:26:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 141 states have internal predecessors, (190), 65 states have call successors, (65), 20 states have call predecessors, (65), 20 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 14:26:51,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 319 transitions. [2022-12-14 14:26:51,420 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 319 transitions. Word has length 78 [2022-12-14 14:26:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:51,420 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 319 transitions. [2022-12-14 14:26:51,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 14:26:51,421 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 319 transitions. [2022-12-14 14:26:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 14:26:51,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:51,423 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 14:26:51,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:26:51,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:51,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1156086924, now seen corresponding path program 1 times [2022-12-14 14:26:51,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:51,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884234266] [2022-12-14 14:26:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:51,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:26:51,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:51,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884234266] [2022-12-14 14:26:51,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884234266] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:26:51,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508989063] [2022-12-14 14:26:51,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:51,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:26:51,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:26:51,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:26:51,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:26:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:51,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:26:51,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:26:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:26:51,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:26:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:26:51,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508989063] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:26:51,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1229463693] [2022-12-14 14:26:51,962 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-12-14 14:26:51,962 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:26:51,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:26:51,971 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:26:51,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:27:26,408 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:27:26,715 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:27:27,033 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:28:10,349 WARN L233 SmtUtils]: Spent 11.00s on a formula simplification. DAG size of input: 592 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:28:22,328 WARN L233 SmtUtils]: Spent 11.70s on a formula simplification. DAG size of input: 595 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:28:32,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1229463693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:32,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:28:32,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 14:28:32,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935510663] [2022-12-14 14:28:32,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:32,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 14:28:32,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 14:28:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-12-14 14:28:32,821 INFO L87 Difference]: Start difference. First operand 224 states and 319 transitions. Second operand has 21 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 14:28:39,440 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 575 DAG size of output: 374 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:28:45,818 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 575 DAG size of output: 425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:28:52,707 WARN L233 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 600 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:29:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:29:01,563 INFO L93 Difference]: Finished difference Result 531 states and 806 transitions. [2022-12-14 14:29:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 14:29:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 79 [2022-12-14 14:29:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:29:01,568 INFO L225 Difference]: With dead ends: 531 [2022-12-14 14:29:01,568 INFO L226 Difference]: Without dead ends: 325 [2022-12-14 14:29:01,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 86.9s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:29:01,571 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 137 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:29:01,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 3413 Invalid, 2075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 14:29:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-12-14 14:29:01,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 252. [2022-12-14 14:29:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 165 states have (on average 1.387878787878788) internal successors, (229), 168 states have internal predecessors, (229), 65 states have call successors, (65), 21 states have call predecessors, (65), 21 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 14:29:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 358 transitions. [2022-12-14 14:29:01,767 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 358 transitions. Word has length 79 [2022-12-14 14:29:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:29:01,767 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 358 transitions. [2022-12-14 14:29:01,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-12-14 14:29:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 358 transitions. [2022-12-14 14:29:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 14:29:01,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:29:01,771 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-12-14 14:29:01,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:29:01,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:29:01,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:29:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:29:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1740462564, now seen corresponding path program 1 times [2022-12-14 14:29:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:29:01,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245346345] [2022-12-14 14:29:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:29:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:29:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:29:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:29:02,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:29:02,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245346345] [2022-12-14 14:29:02,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245346345] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:29:02,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416276584] [2022-12-14 14:29:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:29:02,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:29:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:29:02,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:29:02,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:29:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:29:02,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:29:02,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:29:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:29:02,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:29:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:29:02,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416276584] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:29:02,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [386971214] [2022-12-14 14:29:02,414 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 14:29:02,414 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:29:02,414 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:29:02,415 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:29:02,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:29:56,599 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:29:56,909 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:29:57,223 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:30:38,330 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 593 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:30:46,845 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification. DAG size of input: 593 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:31:04,634 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 572 DAG size of output: 430 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:31:11,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [386971214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:31:11,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:31:11,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-12-14 14:31:11,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618252313] [2022-12-14 14:31:11,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:31:11,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:31:11,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:31:11,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:31:11,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:31:11,395 INFO L87 Difference]: Start difference. First operand 252 states and 358 transitions. Second operand has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 14:31:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:31:46,084 INFO L93 Difference]: Finished difference Result 585 states and 883 transitions. [2022-12-14 14:31:46,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 14:31:46,085 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 85 [2022-12-14 14:31:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:31:46,086 INFO L225 Difference]: With dead ends: 585 [2022-12-14 14:31:46,086 INFO L226 Difference]: Without dead ends: 379 [2022-12-14 14:31:46,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 101.5s TimeCoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 14:31:46,088 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 203 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:31:46,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 3096 Invalid, 2060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 14:31:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-14 14:31:46,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 296. [2022-12-14 14:31:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 206 states have (on average 1.441747572815534) internal successors, (297), 210 states have internal predecessors, (297), 67 states have call successors, (67), 22 states have call predecessors, (67), 22 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-12-14 14:31:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 430 transitions. [2022-12-14 14:31:46,259 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 430 transitions. Word has length 85 [2022-12-14 14:31:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:31:46,260 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 430 transitions. [2022-12-14 14:31:46,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-12-14 14:31:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 430 transitions. [2022-12-14 14:31:46,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 14:31:46,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:31:46,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 14:31:46,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:31:46,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:31:46,463 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:31:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:31:46,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1247924735, now seen corresponding path program 1 times [2022-12-14 14:31:46,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:31:46,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513005453] [2022-12-14 14:31:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:31:46,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:31:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:31:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:31:46,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:31:46,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513005453] [2022-12-14 14:31:46,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513005453] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:31:46,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264282015] [2022-12-14 14:31:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:31:46,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:31:46,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:31:46,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:31:46,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:31:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:31:46,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:31:46,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:31:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:31:46,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:31:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:31:46,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264282015] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:31:46,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1951301063] [2022-12-14 14:31:46,914 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-12-14 14:31:46,914 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:31:46,915 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:31:46,915 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:31:46,915 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:32:24,541 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:32:24,845 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-12-14 14:32:24,912 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-12-14 14:32:24,978 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 253 for LOIs [2022-12-14 14:32:25,059 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:32:25,376 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:33:08,283 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:33:19,883 WARN L233 SmtUtils]: Spent 11.31s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:33:29,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1951301063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:29,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:33:29,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-12-14 14:33:29,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336509703] [2022-12-14 14:33:29,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:29,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 14:33:29,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:29,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 14:33:29,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 14:33:29,043 INFO L87 Difference]: Start difference. First operand 296 states and 430 transitions. Second operand has 30 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 14:33:41,102 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 622 DAG size of output: 423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:33:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:51,839 INFO L93 Difference]: Finished difference Result 615 states and 932 transitions. [2022-12-14 14:33:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 14:33:51,840 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 88 [2022-12-14 14:33:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:51,841 INFO L225 Difference]: With dead ends: 615 [2022-12-14 14:33:51,841 INFO L226 Difference]: Without dead ends: 409 [2022-12-14 14:33:51,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 74.2s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 14:33:51,843 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 165 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:51,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3856 Invalid, 3428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 14:33:51,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-12-14 14:33:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 363. [2022-12-14 14:33:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 266 states have (on average 1.4699248120300752) internal successors, (391), 271 states have internal predecessors, (391), 71 states have call successors, (71), 25 states have call predecessors, (71), 25 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 14:33:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 532 transitions. [2022-12-14 14:33:52,107 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 532 transitions. Word has length 88 [2022-12-14 14:33:52,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:52,108 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 532 transitions. [2022-12-14 14:33:52,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2022-12-14 14:33:52,108 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 532 transitions. [2022-12-14 14:33:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 14:33:52,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:52,109 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 14:33:52,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:33:52,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 14:33:52,310 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:33:52,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:52,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1660557231, now seen corresponding path program 1 times [2022-12-14 14:33:52,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:52,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478575588] [2022-12-14 14:33:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:52,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:33:52,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:52,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478575588] [2022-12-14 14:33:52,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478575588] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:33:52,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807813755] [2022-12-14 14:33:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:52,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:52,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:52,423 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:52,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:33:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:52,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:33:52,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:33:52,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:33:52,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807813755] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:52,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [640465837] [2022-12-14 14:33:52,691 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2022-12-14 14:33:52,691 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:33:52,691 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:33:52,692 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:33:52,692 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:34:37,402 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:34:37,705 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:34:38,009 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 471 for LOIs [2022-12-14 14:35:06,561 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 451 for LOIs [2022-12-14 14:35:06,867 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 469 for LOIs [2022-12-14 14:35:24,576 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-12-14 14:35:24,617 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 452 for LOIs [2022-12-14 14:35:25,287 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-12-14 14:35:25,329 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:36:09,749 WARN L233 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 609 DAG size of output: 478 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:36:15,934 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 605 DAG size of output: 362 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:36:28,231 WARN L233 SmtUtils]: Spent 12.01s on a formula simplification. DAG size of input: 604 DAG size of output: 481 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:36:40,320 WARN L233 SmtUtils]: Spent 11.78s on a formula simplification. DAG size of input: 602 DAG size of output: 479 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:37:48,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [640465837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:37:48,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:37:48,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 59 [2022-12-14 14:37:48,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25909706] [2022-12-14 14:37:48,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:37:48,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-12-14 14:37:48,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:37:48,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-12-14 14:37:48,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=3259, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 14:37:48,744 INFO L87 Difference]: Start difference. First operand 363 states and 532 transitions. Second operand has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 36 states have internal predecessors, (48), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 14:37:55,857 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 586 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:03,562 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 608 DAG size of output: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:09,780 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 586 DAG size of output: 388 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:15,697 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 604 DAG size of output: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:21,548 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 602 DAG size of output: 382 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:27,320 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 605 DAG size of output: 388 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:32,890 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 603 DAG size of output: 384 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:39,115 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 606 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:44,792 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 604 DAG size of output: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:51,317 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 607 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:38:57,520 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 605 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:39:03,764 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 606 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:39:11,274 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 606 DAG size of output: 442 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:39:19,708 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 611 DAG size of output: 443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:39:26,794 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 606 DAG size of output: 416 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:39:53,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:39:53,065 INFO L93 Difference]: Finished difference Result 700 states and 1052 transitions. [2022-12-14 14:39:53,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-12-14 14:39:53,066 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 36 states have internal predecessors, (48), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 87 [2022-12-14 14:39:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:39:53,067 INFO L225 Difference]: With dead ends: 700 [2022-12-14 14:39:53,067 INFO L226 Difference]: Without dead ends: 494 [2022-12-14 14:39:53,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1354 ImplicationChecksByTransitivity, 245.7s TimeCoverageRelationStatistics Valid=494, Invalid=5986, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 14:39:53,069 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 334 mSDsluCounter, 5270 mSDsCounter, 0 mSdLazyCounter, 6849 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 6879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:39:53,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 5500 Invalid, 6879 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 6849 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2022-12-14 14:39:53,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-12-14 14:39:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 422. [2022-12-14 14:39:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 308 states have (on average 1.448051948051948) internal successors, (446), 314 states have internal predecessors, (446), 83 states have call successors, (83), 31 states have call predecessors, (83), 30 states have return successors, (83), 78 states have call predecessors, (83), 82 states have call successors, (83) [2022-12-14 14:39:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 612 transitions. [2022-12-14 14:39:53,402 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 612 transitions. Word has length 87 [2022-12-14 14:39:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:39:53,403 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 612 transitions. [2022-12-14 14:39:53,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 36 states have internal predecessors, (48), 15 states have call successors, (17), 9 states have call predecessors, (17), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2022-12-14 14:39:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 612 transitions. [2022-12-14 14:39:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 14:39:53,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:39:53,404 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-12-14 14:39:53,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:39:53,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 14:39:53,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:39:53,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:39:53,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1723372374, now seen corresponding path program 1 times [2022-12-14 14:39:53,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:39:53,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399037746] [2022-12-14 14:39:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:39:53,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:39:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:39:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:39:54,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:39:54,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399037746] [2022-12-14 14:39:54,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399037746] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:39:54,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487596341] [2022-12-14 14:39:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:39:54,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:39:54,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:39:54,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:39:54,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99092fa0-a7ed-4db8-a2fe-8866827f22cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:39:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:39:54,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:39:54,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:39:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:39:54,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:39:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:39:54,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487596341] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:39:54,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524024320] [2022-12-14 14:39:54,450 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2022-12-14 14:39:54,450 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:39:54,450 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:39:54,451 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:39:54,451 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:40:38,213 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 14:40:38,523 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 14:40:38,833 INFO L180 IcfgInterpreter]: Interpretation finished