./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bb6780cd72c063a3ddf598e6503fa6a629155476e6b8e08224a0e59d0bc00b9 --- 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-38b53e6 [2022-11-25 17:40:13,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:13,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:13,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:13,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:13,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:13,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:13,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:13,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:13,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:13,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:13,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:13,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:13,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:13,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:13,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:13,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:13,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:13,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:13,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:13,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:13,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:13,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:13,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:13,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:13,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:13,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:13,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:13,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:13,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:13,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:13,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:13,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:13,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:13,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:13,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:13,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:13,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:13,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:13,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:13,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:13,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:40:13,167 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:13,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:13,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:13,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:13,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:13,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:13,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:13,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:13,170 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:13,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:13,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:40:13,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:13,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:40:13,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:13,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:13,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:13,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:13,173 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:40:13,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:13,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:13,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:13,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:13,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:13,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:13,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:13,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:13,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:13,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:13,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:13,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:13,176 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:13,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:13,176 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:13,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:13,177 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bb6780cd72c063a3ddf598e6503fa6a629155476e6b8e08224a0e59d0bc00b9 [2022-11-25 17:40:13,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:13,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:13,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:13,509 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:13,510 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:13,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2022-11-25 17:40:16,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:16,772 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:16,773 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c [2022-11-25 17:40:16,779 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/data/ddbe1306c/47f4cb6d611f45fd8738c34ad90cce2c/FLAG8e570d45e [2022-11-25 17:40:16,795 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/data/ddbe1306c/47f4cb6d611f45fd8738c34ad90cce2c [2022-11-25 17:40:16,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:16,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:16,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:16,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:16,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:16,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:16" (1/1) ... [2022-11-25 17:40:16,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b40fbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:16, skipping insertion in model container [2022-11-25 17:40:16,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:16" (1/1) ... [2022-11-25 17:40:16,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:16,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:16,973 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_04e34bc4-dac0-4cf2-9a36-b3a046892b25/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c[538,551] [2022-11-25 17:40:16,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:17,001 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:17,013 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_04e34bc4-dac0-4cf2-9a36-b3a046892b25/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound1.c[538,551] [2022-11-25 17:40:17,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:17,034 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:17,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17 WrapperNode [2022-11-25 17:40:17,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:17,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:17,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:17,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:17,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,069 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-11-25 17:40:17,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:17,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:17,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:17,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:17,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,090 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:17,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:17,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:17,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:17,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (1/1) ... [2022-11-25 17:40:17,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:17,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:17,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:17,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:40:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:40:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:40:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:40:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:40:17,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:40:17,271 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:17,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:17,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:17,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:17,500 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:40:17,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:17 BoogieIcfgContainer [2022-11-25 17:40:17,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:17,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:17,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:17,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:17,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:16" (1/3) ... [2022-11-25 17:40:17,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a2543c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:17, skipping insertion in model container [2022-11-25 17:40:17,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:17" (2/3) ... [2022-11-25 17:40:17,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a2543c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:17, skipping insertion in model container [2022-11-25 17:40:17,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:17" (3/3) ... [2022-11-25 17:40:17,513 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound1.c [2022-11-25 17:40:17,533 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:17,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:40:17,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:17,594 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f2ac3ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:17,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:40:17,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 17:40:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:40:17,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:17,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:17,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash -487550744, now seen corresponding path program 1 times [2022-11-25 17:40:17,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:17,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996041894] [2022-11-25 17:40:17,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:17,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:40:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:17,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:40:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:40:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:40:17,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:17,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996041894] [2022-11-25 17:40:17,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996041894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:17,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:17,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:40:17,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361010316] [2022-11-25 17:40:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:17,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:40:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:40:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:40:17,852 INFO L87 Difference]: Start difference. First operand has 33 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:40:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:17,878 INFO L93 Difference]: Finished difference Result 63 states and 104 transitions. [2022-11-25 17:40:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:40:17,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-11-25 17:40:17,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:17,887 INFO L225 Difference]: With dead ends: 63 [2022-11-25 17:40:17,888 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 17:40:17,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:40:17,895 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:17,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:40:17,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 17:40:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-25 17:40:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 17:40:17,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2022-11-25 17:40:17,936 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 24 [2022-11-25 17:40:17,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:17,937 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2022-11-25 17:40:17,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:40:17,938 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-11-25 17:40:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:40:17,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:17,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:17,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:40:17,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1636258074, now seen corresponding path program 1 times [2022-11-25 17:40:17,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:17,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16452193] [2022-11-25 17:40:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:40:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:40:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:40:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:40:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:18,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16452193] [2022-11-25 17:40:18,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16452193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:18,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:18,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530140161] [2022-11-25 17:40:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:18,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:18,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:18,205 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:40:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:18,270 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2022-11-25 17:40:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:18,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-11-25 17:40:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:18,273 INFO L225 Difference]: With dead ends: 42 [2022-11-25 17:40:18,273 INFO L226 Difference]: Without dead ends: 40 [2022-11-25 17:40:18,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:18,275 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 12 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:18,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 128 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:40:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-25 17:40:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2022-11-25 17:40:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 17:40:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-11-25 17:40:18,288 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 24 [2022-11-25 17:40:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:18,289 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-11-25 17:40:18,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:40:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-11-25 17:40:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 17:40:18,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:18,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:18,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:40:18,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:18,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash 906849917, now seen corresponding path program 1 times [2022-11-25 17:40:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:18,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085651651] [2022-11-25 17:40:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:40:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:40:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:40:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:40:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,595 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:40:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:18,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085651651] [2022-11-25 17:40:18,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085651651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:18,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:18,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:18,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204435690] [2022-11-25 17:40:18,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:18,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:18,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:18,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:18,599 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:40:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:18,688 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-11-25 17:40:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:18,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-11-25 17:40:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:18,690 INFO L225 Difference]: With dead ends: 46 [2022-11-25 17:40:18,690 INFO L226 Difference]: Without dead ends: 44 [2022-11-25 17:40:18,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:18,698 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:18,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 123 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:40:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-25 17:40:18,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2022-11-25 17:40:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 17:40:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-11-25 17:40:18,725 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 29 [2022-11-25 17:40:18,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:18,725 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-25 17:40:18,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:40:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-11-25 17:40:18,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 17:40:18,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:18,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:18,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:40:18,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash 710995206, now seen corresponding path program 1 times [2022-11-25 17:40:18,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:18,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147630268] [2022-11-25 17:40:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:18,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:18,760 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:40:18,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472401953] [2022-11-25 17:40:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:18,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:18,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:18,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:18,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:40:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 17:40:18,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 17:40:19,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 17:40:19,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:19,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147630268] [2022-11-25 17:40:19,440 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:40:19,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472401953] [2022-11-25 17:40:19,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472401953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:19,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:40:19,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 16 [2022-11-25 17:40:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71472572] [2022-11-25 17:40:19,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:19,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:40:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:19,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:40:19,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:40:19,444 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 16 states, 13 states have (on average 2.0) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-25 17:40:19,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:19,890 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2022-11-25 17:40:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:40:19,891 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.0) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 34 [2022-11-25 17:40:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:19,896 INFO L225 Difference]: With dead ends: 69 [2022-11-25 17:40:19,897 INFO L226 Difference]: Without dead ends: 54 [2022-11-25 17:40:19,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:40:19,905 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 49 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:19,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 111 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:40:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-25 17:40:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2022-11-25 17:40:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.15625) internal successors, (37), 33 states have internal predecessors, (37), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 17:40:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2022-11-25 17:40:19,968 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 34 [2022-11-25 17:40:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:19,969 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2022-11-25 17:40:19,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.0) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-25 17:40:19,969 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2022-11-25 17:40:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 17:40:19,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:19,971 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:19,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:20,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:20,172 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:20,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:20,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1829555286, now seen corresponding path program 1 times [2022-11-25 17:40:20,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:20,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965901812] [2022-11-25 17:40:20,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:20,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:20,195 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:40:20,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510082030] [2022-11-25 17:40:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:20,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:20,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:20,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:40:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:20,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 17:40:20,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:40:20,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:40:20,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:20,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965901812] [2022-11-25 17:40:20,848 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:40:20,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510082030] [2022-11-25 17:40:20,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510082030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:20,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:40:20,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 16 [2022-11-25 17:40:20,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13175074] [2022-11-25 17:40:20,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:20,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:40:20,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:20,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:40:20,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:40:20,855 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 16 states, 16 states have (on average 1.875) internal successors, (30), 13 states have internal predecessors, (30), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2022-11-25 17:40:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:21,251 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2022-11-25 17:40:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:40:21,252 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 13 states have internal predecessors, (30), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 41 [2022-11-25 17:40:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:21,254 INFO L225 Difference]: With dead ends: 66 [2022-11-25 17:40:21,254 INFO L226 Difference]: Without dead ends: 59 [2022-11-25 17:40:21,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-11-25 17:40:21,256 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 42 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:21,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 116 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:40:21,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-25 17:40:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-25 17:40:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 39 states have internal predecessors, (41), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:40:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-11-25 17:40:21,273 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 41 [2022-11-25 17:40:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:21,273 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-11-25 17:40:21,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 13 states have internal predecessors, (30), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2022-11-25 17:40:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-11-25 17:40:21,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 17:40:21,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:21,276 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:21,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:21,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:21,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:21,482 INFO L85 PathProgramCache]: Analyzing trace with hash -677073599, now seen corresponding path program 1 times [2022-11-25 17:40:21,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:21,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945081134] [2022-11-25 17:40:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:21,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:21,495 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:40:21,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431597386] [2022-11-25 17:40:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:21,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:21,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:21,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:21,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:40:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:21,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:40:21,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-25 17:40:21,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:40:21,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945081134] [2022-11-25 17:40:21,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:40:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431597386] [2022-11-25 17:40:21,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431597386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:21,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:21,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:21,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527686292] [2022-11-25 17:40:21,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:21,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:40:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:40:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:40:21,646 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:40:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:21,702 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2022-11-25 17:40:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:40:21,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2022-11-25 17:40:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:21,709 INFO L225 Difference]: With dead ends: 70 [2022-11-25 17:40:21,709 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 17:40:21,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:40:21,711 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:21,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 89 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:40:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 17:40:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-25 17:40:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 41 states have internal predecessors, (43), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-25 17:40:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-11-25 17:40:21,743 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 69 [2022-11-25 17:40:21,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:21,745 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-11-25 17:40:21,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 17:40:21,745 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-11-25 17:40:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 17:40:21,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:21,756 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:21,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:21,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:21,967 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:21,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:21,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1754894755, now seen corresponding path program 1 times [2022-11-25 17:40:21,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:21,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443304130] [2022-11-25 17:40:21,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:21,988 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:40:22,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507876239] [2022-11-25 17:40:22,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:22,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:22,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:22,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:22,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:40:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:22,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-25 17:40:22,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-25 17:40:22,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-25 17:40:24,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:24,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443304130] [2022-11-25 17:40:24,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:40:24,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507876239] [2022-11-25 17:40:24,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507876239] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:24,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:40:24,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2022-11-25 17:40:24,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914803733] [2022-11-25 17:40:24,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:24,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:40:24,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:24,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:40:24,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:40:24,932 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 16 states have internal predecessors, (36), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 8 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-25 17:40:32,544 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 53 DAG size of output: 27 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:40:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:37,084 INFO L93 Difference]: Finished difference Result 145 states and 178 transitions. [2022-11-25 17:40:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:40:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 16 states have internal predecessors, (36), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 8 states have call predecessors, (22), 7 states have call successors, (22) Word has length 71 [2022-11-25 17:40:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:37,086 INFO L225 Difference]: With dead ends: 145 [2022-11-25 17:40:37,087 INFO L226 Difference]: Without dead ends: 106 [2022-11-25 17:40:37,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-25 17:40:37,088 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 59 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:37,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 183 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 17:40:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-25 17:40:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2022-11-25 17:40:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 66 states have internal predecessors, (70), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-25 17:40:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 119 transitions. [2022-11-25 17:40:37,122 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 119 transitions. Word has length 71 [2022-11-25 17:40:37,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:37,122 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 119 transitions. [2022-11-25 17:40:37,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 16 states have internal predecessors, (36), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 8 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-25 17:40:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 119 transitions. [2022-11-25 17:40:37,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 17:40:37,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:37,124 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:37,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:37,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:37,330 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1620227847, now seen corresponding path program 1 times [2022-11-25 17:40:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:37,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893862790] [2022-11-25 17:40:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:37,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:37,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:40:37,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094202875] [2022-11-25 17:40:37,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:37,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:37,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:37,348 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:37,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:40:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:37,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-25 17:40:37,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 49 proven. 13 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-25 17:40:39,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:42,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893862790] [2022-11-25 17:40:42,204 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:40:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094202875] [2022-11-25 17:40:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094202875] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:40:42,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:40:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2022-11-25 17:40:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710439414] [2022-11-25 17:40:42,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:42,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 17:40:42,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:42,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 17:40:42,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:40:42,206 INFO L87 Difference]: Start difference. First operand 98 states and 119 transitions. Second operand has 17 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 8 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-25 17:40:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:43,909 INFO L93 Difference]: Finished difference Result 117 states and 137 transitions. [2022-11-25 17:40:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:40:43,910 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 8 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 82 [2022-11-25 17:40:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:43,910 INFO L225 Difference]: With dead ends: 117 [2022-11-25 17:40:43,910 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:40:43,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2022-11-25 17:40:43,912 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:43,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 114 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:40:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:40:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:40:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:40:43,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2022-11-25 17:40:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:43,914 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:40:43,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 8 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-25 17:40:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:40:43,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:40:43,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:40:43,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:44,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 17:40:44,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:40:46,368 INFO L895 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (and (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) (<= 1 .cse0))) [2022-11-25 17:40:46,370 INFO L899 garLoopResultBuilder]: For program point L48(lines 46 58) no Hoare annotation was computed. [2022-11-25 17:40:46,370 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse4 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse1 (<= 1 .cse0)) (.cse2 (<= .cse4 1)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| .cse4))) (or (and (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) .cse1 .cse2 (= |ULTIMATE.start_main_~q~0#1| 0) .cse3) (and .cse1 .cse2 (= (* 2 .cse0) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (= (* |ULTIMATE.start_main_~p~0#1| .cse0) |ULTIMATE.start_main_~d~0#1|) (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse0) |ULTIMATE.start_main_~r~0#1|) .cse4) .cse3)))) [2022-11-25 17:40:46,370 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:40:46,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:40:46,370 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-11-25 17:40:46,371 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:40:46,371 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1) [2022-11-25 17:40:46,371 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (and (<= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 1) (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) [2022-11-25 17:40:46,372 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse4 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse1 (<= 1 .cse0)) (.cse2 (<= .cse4 1)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| .cse4))) (or (and (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) .cse1 .cse2 (= |ULTIMATE.start_main_~q~0#1| 0) .cse3) (and .cse1 .cse2 (= (* 2 .cse0) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (= (* |ULTIMATE.start_main_~p~0#1| .cse0) |ULTIMATE.start_main_~d~0#1|) (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse0) |ULTIMATE.start_main_~r~0#1|) .cse4) .cse3)))) [2022-11-25 17:40:46,372 INFO L895 garLoopResultBuilder]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse4 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse1 (<= 1 .cse0)) (.cse2 (<= .cse4 1)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| .cse4))) (or (and (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) .cse1 .cse2 (= |ULTIMATE.start_main_~q~0#1| 0) .cse3) (and .cse1 .cse2 (= (* 2 .cse0) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (= (* |ULTIMATE.start_main_~p~0#1| .cse0) |ULTIMATE.start_main_~d~0#1|) (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse0) |ULTIMATE.start_main_~r~0#1|) .cse4) .cse3)))) [2022-11-25 17:40:46,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:40:46,372 INFO L902 garLoopResultBuilder]: At program point L62(lines 22 63) the Hoare annotation is: true [2022-11-25 17:40:46,373 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-25 17:40:46,373 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2022-11-25 17:40:46,373 INFO L895 garLoopResultBuilder]: At program point L54-2(lines 22 63) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse3 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse0 (<= .cse3 1)) (.cse2 (= (* |ULTIMATE.start_main_~p~0#1| .cse1) |ULTIMATE.start_main_~d~0#1|)) (.cse4 (= |ULTIMATE.start_main_~r~0#1| .cse3))) (or (and .cse0 (= (* 2 .cse1) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) .cse2 (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse1) |ULTIMATE.start_main_~r~0#1|) .cse3) .cse4) (and .cse0 (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse3) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 1) .cse2 (<= .cse3 (* 2 |ULTIMATE.start_main_~d~0#1|)) (<= 1 .cse3)) (and (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse4 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) .cse1))))) [2022-11-25 17:40:46,377 INFO L895 garLoopResultBuilder]: At program point L46-1(lines 46 58) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse1 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (or (and (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~r~0#1| .cse1) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) .cse0)) (and (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse1) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (exists ((|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| Int)) (let ((.cse3 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 4294967296))) (let ((.cse2 (+ .cse3 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| 4294967296)))) (and (<= .cse2 1) (<= (+ .cse1 1) (+ (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 8589934592) (* |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 2))) (<= 0 .cse2) (< (+ .cse3 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67|) 4294967296) (= (+ (* |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| |ULTIMATE.start_main_~q~0#1|) |ULTIMATE.start_main_~r~0#1|) .cse1) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 4294967296))))) (= |ULTIMATE.start_main_~q~0#1| 1) (<= .cse1 (* 2 |ULTIMATE.start_main_~d~0#1|)) (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse0) |ULTIMATE.start_main_~r~0#1|) .cse1) (<= 1 .cse1)))) [2022-11-25 17:40:46,379 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse4 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse1 (<= 1 .cse0)) (.cse2 (<= .cse4 1)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| .cse4))) (or (and (<= .cse0 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) .cse1 .cse2 (= |ULTIMATE.start_main_~q~0#1| 0) .cse3) (and .cse1 .cse2 (= (* 2 .cse0) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (= (* |ULTIMATE.start_main_~p~0#1| .cse0) |ULTIMATE.start_main_~d~0#1|) (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse0) |ULTIMATE.start_main_~r~0#1|) .cse4) .cse3)))) [2022-11-25 17:40:46,379 INFO L902 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2022-11-25 17:40:46,379 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-25 17:40:46,379 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse3 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse0 (<= .cse3 1)) (.cse2 (= (* |ULTIMATE.start_main_~p~0#1| .cse1) |ULTIMATE.start_main_~d~0#1|)) (.cse4 (= |ULTIMATE.start_main_~r~0#1| .cse3))) (or (and .cse0 (= (* 2 .cse1) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) .cse2 (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse1) |ULTIMATE.start_main_~r~0#1|) .cse3) .cse4) (and .cse0 (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse3) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 1) .cse2 (<= .cse3 (* 2 |ULTIMATE.start_main_~d~0#1|)) (<= 1 .cse3)) (and (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse4 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) .cse1))))) [2022-11-25 17:40:46,380 INFO L895 garLoopResultBuilder]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse0 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse3 (= |ULTIMATE.start_main_~r~0#1| .cse0)) (.cse2 (= (* |ULTIMATE.start_main_~p~0#1| .cse1) |ULTIMATE.start_main_~d~0#1|))) (or (and (<= .cse0 1) (= (* 2 .cse1) |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) .cse2 (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse1) |ULTIMATE.start_main_~r~0#1|) .cse0) .cse3) (and (<= .cse1 1) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse3 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) .cse1)) (and (exists ((|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| Int) (|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| Int)) (let ((.cse5 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 4294967296))) (let ((.cse4 (+ .cse5 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| 4294967296)))) (and (<= .cse4 1) (<= (+ .cse0 1) (+ (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 8589934592) (* |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 2))) (<= 0 .cse4) (< (+ .cse5 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67|) 4294967296) (<= 0 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67|) (= (+ (* |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| |ULTIMATE.start_main_~q~0#1|) |ULTIMATE.start_main_~r~0#1|) .cse0) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 4294967296))))) (<= |ULTIMATE.start_main_~d~0#1| .cse0) (= |ULTIMATE.start_main_~q~0#1| 1) .cse2 (<= .cse0 (* 2 |ULTIMATE.start_main_~d~0#1|)) (<= 1 .cse0))))) [2022-11-25 17:40:46,380 INFO L899 garLoopResultBuilder]: For program point L39(lines 36 44) no Hoare annotation was computed. [2022-11-25 17:40:46,380 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 11 13) the Hoare annotation is: true [2022-11-25 17:40:46,380 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-25 17:40:46,380 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2022-11-25 17:40:46,381 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2022-11-25 17:40:46,381 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-11-25 17:40:46,381 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-11-25 17:40:46,381 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-11-25 17:40:46,381 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-11-25 17:40:46,381 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-11-25 17:40:46,382 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-11-25 17:40:46,386 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:46,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:40:46,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:40:46 BoogieIcfgContainer [2022-11-25 17:40:46,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:40:46,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:40:46,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:40:46,429 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:40:46,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:17" (3/4) ... [2022-11-25 17:40:46,432 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:40:46,439 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-25 17:40:46,439 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-25 17:40:46,445 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 17:40:46,446 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 17:40:46,446 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:40:46,446 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:40:46,480 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:40:46,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:40:46,481 INFO L158 Benchmark]: Toolchain (without parser) took 29681.82ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 137.4MB in the beginning and 162.7MB in the end (delta: -25.3MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2022-11-25 17:40:46,481 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:46,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.88ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 126.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:40:46,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.77ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 125.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:46,482 INFO L158 Benchmark]: Boogie Preprocessor took 22.72ms. Allocated memory is still 167.8MB. Free memory was 125.2MB in the beginning and 124.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:46,482 INFO L158 Benchmark]: RCFGBuilder took 409.05ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 112.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:40:46,483 INFO L158 Benchmark]: TraceAbstraction took 28922.69ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 112.0MB in the beginning and 165.8MB in the end (delta: -53.8MB). Peak memory consumption was 115.9MB. Max. memory is 16.1GB. [2022-11-25 17:40:46,483 INFO L158 Benchmark]: Witness Printer took 51.72ms. Allocated memory is still 243.3MB. Free memory was 165.8MB in the beginning and 162.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:40:46,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.88ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 126.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.77ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 125.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.72ms. Allocated memory is still 167.8MB. Free memory was 125.2MB in the beginning and 124.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.05ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 112.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 28922.69ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 112.0MB in the beginning and 165.8MB in the end (delta: -53.8MB). Peak memory consumption was 115.9MB. Max. memory is 16.1GB. * Witness Printer took 51.72ms. Allocated memory is still 243.3MB. Free memory was 165.8MB in the beginning and 162.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.8s, OverallIterations: 8, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 907 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 652 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1529 IncrementalHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 255 mSDtfsCounter, 1529 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 514 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 68 PreInvPairs, 92 NumberOfFragments, 866 HoareAnnotationTreeSize, 68 FomulaSimplifications, 91 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 1035 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 509 ConstructedInterpolants, 3 QuantifiedInterpolants, 4048 SizeOfPredicates, 22 NumberOfNonLiveVariables, 696 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 743/798 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((A % 4294967296 <= 1 && 2 * (B % 4294967296) == d) && -d / -2 <= r) && r < d) && p * (B % 4294967296) == d) && q * (B % 4294967296) + r == A % 4294967296) && r == A % 4294967296) || ((((((A % 4294967296 <= 1 && d + r <= A % 4294967296) && 0 <= r) && q == 1) && p * (B % 4294967296) == d) && A % 4294967296 <= 2 * d) && 1 <= A % 4294967296)) || (((((B % 4294967296 <= 1 && p == 1) && d == B % 4294967296) && q == 0) && r == A % 4294967296) && r + 1 <= B % 4294967296) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((B % 4294967296 <= 1 && p == 1) && d == B % 4294967296) && 1 <= B % 4294967296) && A % 4294967296 <= 1) && q == 0) && r == A % 4294967296) || ((((((1 <= B % 4294967296 && A % 4294967296 <= 1) && 2 * (B % 4294967296) == d) && -d / -2 <= r) && p * (B % 4294967296) == d) && q * (B % 4294967296) + r == A % 4294967296) && r == A % 4294967296) RESULT: Ultimate proved your program to be correct! [2022-11-25 17:40:46,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e34bc4-dac0-4cf2-9a36-b3a046892b25/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE