./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix043.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db --- 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-6b4ec56 [2022-11-20 10:50:26,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:50:26,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:50:26,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:50:26,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:50:26,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:50:26,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:50:26,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:50:26,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:50:26,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:50:26,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:50:26,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:50:26,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:50:26,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:50:26,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:50:26,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:50:26,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:50:26,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:50:26,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:50:26,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:50:26,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:50:26,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:50:26,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:50:26,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:50:26,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:50:26,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:50:26,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:50:26,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:50:26,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:50:26,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:50:26,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:50:26,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:50:26,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:50:26,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:50:26,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:50:26,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:50:26,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:50:26,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:50:26,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:50:26,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:50:26,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:50:26,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:50:26,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:50:26,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:50:26,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:50:26,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:50:26,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:50:26,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:50:26,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:50:26,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:50:26,222 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:50:26,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:50:26,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:50:26,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:50:26,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:50:26,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:50:26,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:50:26,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:50:26,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:50:26,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:50:26,226 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:50:26,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:50:26,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:50:26,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:50:26,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:50:26,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:50:26,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:50:26,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:50:26,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:26,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:50:26,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:50:26,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:50:26,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:50:26,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:50:26,230 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:50:26,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:50:26,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:50:26,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db [2022-11-20 10:50:26,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:50:26,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:50:26,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:50:26,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:50:26,588 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:50:26,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix043.opt.i [2022-11-20 10:50:30,524 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:50:30,927 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:50:30,928 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/sv-benchmarks/c/pthread-wmm/mix043.opt.i [2022-11-20 10:50:30,947 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/data/42ff09272/87f2bd6ec0fb436da92360d8ad71f4f1/FLAGf4169e4a9 [2022-11-20 10:50:30,972 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/data/42ff09272/87f2bd6ec0fb436da92360d8ad71f4f1 [2022-11-20 10:50:30,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:50:30,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:50:30,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:30,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:50:30,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:50:30,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:30" (1/1) ... [2022-11-20 10:50:30,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d348e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:30, skipping insertion in model container [2022-11-20 10:50:30,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:30" (1/1) ... [2022-11-20 10:50:30,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:50:31,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:50:31,398 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_c79629b5-7f81-45bd-9ac0-fac84226ab17/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2022-11-20 10:50:31,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:50:31,837 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:50:31,854 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_c79629b5-7f81-45bd-9ac0-fac84226ab17/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2022-11-20 10:50:31,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:50:32,008 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:50:32,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32 WrapperNode [2022-11-20 10:50:32,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:32,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:50:32,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:50:32,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:50:32,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,102 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2022-11-20 10:50:32,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:50:32,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:50:32,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:50:32,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:50:32,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:50:32,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:50:32,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:50:32,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:50:32,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (1/1) ... [2022-11-20 10:50:32,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:32,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:32,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:50:32,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:50:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:50:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:50:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:50:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:50:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:50:32,308 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 10:50:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 10:50:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 10:50:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 10:50:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 10:50:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 10:50:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 10:50:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 10:50:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:50:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:50:32,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:50:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:50:32,313 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:50:32,568 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:50:32,579 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:50:33,050 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:50:33,280 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:50:33,280 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:50:33,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:33 BoogieIcfgContainer [2022-11-20 10:50:33,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:50:33,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:50:33,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:50:33,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:50:33,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:30" (1/3) ... [2022-11-20 10:50:33,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b1c6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:33, skipping insertion in model container [2022-11-20 10:50:33,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:32" (2/3) ... [2022-11-20 10:50:33,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b1c6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:33, skipping insertion in model container [2022-11-20 10:50:33,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:33" (3/3) ... [2022-11-20 10:50:33,296 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.opt.i [2022-11-20 10:50:33,308 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:50:33,322 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:50:33,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 10:50:33,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:50:33,486 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:50:33,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-11-20 10:50:33,646 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-20 10:50:33,646 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:50:33,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-20 10:50:33,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 144 transitions, 308 flow [2022-11-20 10:50:33,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 140 transitions, 292 flow [2022-11-20 10:50:33,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:50:33,683 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;@771c3d78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:50:33,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-20 10:50:33,699 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-20 10:50:33,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:50:33,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:33,700 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:33,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 10:50:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1754277410, now seen corresponding path program 1 times [2022-11-20 10:50:33,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:33,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211099501] [2022-11-20 10:50:33,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:33,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:34,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:34,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211099501] [2022-11-20 10:50:34,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211099501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:34,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:34,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:34,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440039109] [2022-11-20 10:50:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:34,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:34,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:34,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:34,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2022-11-20 10:50:34,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-11-20 10:50:34,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:34,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2022-11-20 10:50:34,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:36,330 INFO L130 PetriNetUnfolder]: 3018/5252 cut-off events. [2022-11-20 10:50:36,331 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 10:50:36,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9671 conditions, 5252 events. 3018/5252 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 39546 event pairs, 1095 based on Foata normal form. 542/4001 useless extension candidates. Maximal degree in co-relation 9612. Up to 4247 conditions per place. [2022-11-20 10:50:36,418 INFO L137 encePairwiseOnDemand]: 129/144 looper letters, 31 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2022-11-20 10:50:36,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 150 transitions, 393 flow [2022-11-20 10:50:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:36,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2022-11-20 10:50:36,437 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9305555555555556 [2022-11-20 10:50:36,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2022-11-20 10:50:36,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2022-11-20 10:50:36,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:36,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2022-11-20 10:50:36,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2022-11-20 10:50:36,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2022-11-20 10:50:36,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2022-11-20 10:50:36,459 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 292 flow. Second operand 3 states and 402 transitions. [2022-11-20 10:50:36,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 150 transitions, 393 flow [2022-11-20 10:50:36,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 150 transitions, 386 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:50:36,474 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 329 flow [2022-11-20 10:50:36,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-20 10:50:36,483 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-11-20 10:50:36,483 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 329 flow [2022-11-20 10:50:36,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-11-20 10:50:36,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:36,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:36,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:50:36,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 10:50:36,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1522586199, now seen corresponding path program 1 times [2022-11-20 10:50:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:36,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860554790] [2022-11-20 10:50:36,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:36,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:36,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860554790] [2022-11-20 10:50:36,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860554790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:36,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:36,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:50:36,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123944398] [2022-11-20 10:50:36,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:36,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:50:36,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:36,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:50:36,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:50:36,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2022-11-20 10:50:36,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 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) [2022-11-20 10:50:36,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:36,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2022-11-20 10:50:36,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:37,868 INFO L130 PetriNetUnfolder]: 1696/3488 cut-off events. [2022-11-20 10:50:37,868 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2022-11-20 10:50:37,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7789 conditions, 3488 events. 1696/3488 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 27843 event pairs, 215 based on Foata normal form. 0/2651 useless extension candidates. Maximal degree in co-relation 7731. Up to 1506 conditions per place. [2022-11-20 10:50:37,936 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 39 selfloop transitions, 13 changer transitions 0/166 dead transitions. [2022-11-20 10:50:37,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 166 transitions, 509 flow [2022-11-20 10:50:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:50:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:50:37,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 528 transitions. [2022-11-20 10:50:37,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2022-11-20 10:50:37,944 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 528 transitions. [2022-11-20 10:50:37,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 528 transitions. [2022-11-20 10:50:37,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:37,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 528 transitions. [2022-11-20 10:50:37,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2022-11-20 10:50:37,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-20 10:50:37,953 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-20 10:50:37,954 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 329 flow. Second operand 4 states and 528 transitions. [2022-11-20 10:50:37,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 166 transitions, 509 flow [2022-11-20 10:50:37,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 166 transitions, 504 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:50:37,964 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 427 flow [2022-11-20 10:50:37,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=427, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2022-11-20 10:50:37,966 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, 2 predicate places. [2022-11-20 10:50:37,966 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 427 flow [2022-11-20 10:50:37,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 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) [2022-11-20 10:50:37,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:37,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:37,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:50:37,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 10:50:37,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:37,973 INFO L85 PathProgramCache]: Analyzing trace with hash 218920304, now seen corresponding path program 1 times [2022-11-20 10:50:37,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:37,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990544008] [2022-11-20 10:50:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:37,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:38,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:38,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990544008] [2022-11-20 10:50:38,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990544008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:38,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:38,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:50:38,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705883240] [2022-11-20 10:50:38,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:38,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:50:38,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:50:38,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:50:38,157 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2022-11-20 10:50:38,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 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) [2022-11-20 10:50:38,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:38,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2022-11-20 10:50:38,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:38,709 INFO L130 PetriNetUnfolder]: 646/1585 cut-off events. [2022-11-20 10:50:38,709 INFO L131 PetriNetUnfolder]: For 782/782 co-relation queries the response was YES. [2022-11-20 10:50:38,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3815 conditions, 1585 events. 646/1585 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10975 event pairs, 68 based on Foata normal form. 297/1708 useless extension candidates. Maximal degree in co-relation 3754. Up to 931 conditions per place. [2022-11-20 10:50:38,732 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 31 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2022-11-20 10:50:38,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 150 transitions, 467 flow [2022-11-20 10:50:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:50:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:50:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-20 10:50:38,737 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8819444444444444 [2022-11-20 10:50:38,737 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-20 10:50:38,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-20 10:50:38,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:38,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-20 10:50:38,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-11-20 10:50:38,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-20 10:50:38,742 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-20 10:50:38,742 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 427 flow. Second operand 4 states and 508 transitions. [2022-11-20 10:50:38,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 150 transitions, 467 flow [2022-11-20 10:50:38,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 150 transitions, 444 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-20 10:50:38,767 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 358 flow [2022-11-20 10:50:38,768 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-20 10:50:38,771 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-11-20 10:50:38,771 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 358 flow [2022-11-20 10:50:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 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) [2022-11-20 10:50:38,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:38,773 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:38,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:50:38,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 10:50:38,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1888697118, now seen corresponding path program 1 times [2022-11-20 10:50:38,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:38,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019186636] [2022-11-20 10:50:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:38,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:39,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:39,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019186636] [2022-11-20 10:50:39,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019186636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:39,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:39,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:50:39,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379154897] [2022-11-20 10:50:39,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:39,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:50:39,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:39,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:50:39,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:50:39,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2022-11-20 10:50:39,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2022-11-20 10:50:39,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:39,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2022-11-20 10:50:39,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:39,468 INFO L130 PetriNetUnfolder]: 454/1258 cut-off events. [2022-11-20 10:50:39,468 INFO L131 PetriNetUnfolder]: For 513/513 co-relation queries the response was YES. [2022-11-20 10:50:39,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2596 conditions, 1258 events. 454/1258 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8291 event pairs, 24 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 2536. Up to 266 conditions per place. [2022-11-20 10:50:39,482 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 38 selfloop transitions, 13 changer transitions 4/169 dead transitions. [2022-11-20 10:50:39,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 169 transitions, 552 flow [2022-11-20 10:50:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:50:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:50:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 649 transitions. [2022-11-20 10:50:39,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9013888888888889 [2022-11-20 10:50:39,486 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 649 transitions. [2022-11-20 10:50:39,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 649 transitions. [2022-11-20 10:50:39,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:39,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 649 transitions. [2022-11-20 10:50:39,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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) [2022-11-20 10:50:39,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 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) [2022-11-20 10:50:39,492 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 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) [2022-11-20 10:50:39,492 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 358 flow. Second operand 5 states and 649 transitions. [2022-11-20 10:50:39,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 169 transitions, 552 flow [2022-11-20 10:50:39,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 169 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:39,498 INFO L231 Difference]: Finished difference. Result has 152 places, 141 transitions, 394 flow [2022-11-20 10:50:39,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=394, PETRI_PLACES=152, PETRI_TRANSITIONS=141} [2022-11-20 10:50:39,500 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, 1 predicate places. [2022-11-20 10:50:39,500 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 141 transitions, 394 flow [2022-11-20 10:50:39,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2022-11-20 10:50:39,501 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:39,501 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:39,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:50:39,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 10:50:39,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1021560525, now seen corresponding path program 1 times [2022-11-20 10:50:39,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:39,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271609394] [2022-11-20 10:50:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:39,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:39,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:39,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271609394] [2022-11-20 10:50:39,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271609394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:39,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:39,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:50:39,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629589497] [2022-11-20 10:50:39,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:39,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:50:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:39,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:50:39,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:39,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2022-11-20 10:50:39,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 141 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2022-11-20 10:50:39,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:39,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2022-11-20 10:50:39,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:40,260 INFO L130 PetriNetUnfolder]: 427/1454 cut-off events. [2022-11-20 10:50:40,261 INFO L131 PetriNetUnfolder]: For 1199/1199 co-relation queries the response was YES. [2022-11-20 10:50:40,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3078 conditions, 1454 events. 427/1454 cut-off events. For 1199/1199 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 10186 event pairs, 78 based on Foata normal form. 16/1412 useless extension candidates. Maximal degree in co-relation 3017. Up to 255 conditions per place. [2022-11-20 10:50:40,271 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 0 selfloop transitions, 0 changer transitions 161/161 dead transitions. [2022-11-20 10:50:40,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 161 transitions, 516 flow [2022-11-20 10:50:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:50:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:50:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 759 transitions. [2022-11-20 10:50:40,275 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8784722222222222 [2022-11-20 10:50:40,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 759 transitions. [2022-11-20 10:50:40,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 759 transitions. [2022-11-20 10:50:40,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:40,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 759 transitions. [2022-11-20 10:50:40,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 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) [2022-11-20 10:50:40,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-11-20 10:50:40,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-11-20 10:50:40,284 INFO L175 Difference]: Start difference. First operand has 152 places, 141 transitions, 394 flow. Second operand 6 states and 759 transitions. [2022-11-20 10:50:40,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 161 transitions, 516 flow [2022-11-20 10:50:40,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 161 transitions, 461 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-20 10:50:40,292 INFO L231 Difference]: Finished difference. Result has 147 places, 0 transitions, 0 flow [2022-11-20 10:50:40,292 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=147, PETRI_TRANSITIONS=0} [2022-11-20 10:50:40,293 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -4 predicate places. [2022-11-20 10:50:40,294 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 0 transitions, 0 flow [2022-11-20 10:50:40,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2022-11-20 10:50:40,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-20 10:50:40,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-20 10:50:40,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-20 10:50:40,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-20 10:50:40,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-20 10:50:40,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-20 10:50:40,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-20 10:50:40,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-20 10:50:40,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-20 10:50:40,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-20 10:50:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-20 10:50:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-20 10:50:40,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-20 10:50:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-20 10:50:40,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-20 10:50:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-20 10:50:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-20 10:50:40,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-20 10:50:40,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-20 10:50:40,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-20 10:50:40,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:50:40,306 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 10:50:40,314 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:50:40,314 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:50:40,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:50:40 BasicIcfg [2022-11-20 10:50:40,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:50:40,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:50:40,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:50:40,323 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:50:40,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:33" (3/4) ... [2022-11-20 10:50:40,327 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:50:40,334 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 10:50:40,334 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 10:50:40,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 10:50:40,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-20 10:50:40,342 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-20 10:50:40,343 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 10:50:40,343 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 10:50:40,344 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:50:40,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:50:40,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:50:40,400 INFO L158 Benchmark]: Toolchain (without parser) took 9421.36ms. Allocated memory was 174.1MB in the beginning and 432.0MB in the end (delta: 257.9MB). Free memory was 143.0MB in the beginning and 281.9MB in the end (delta: -138.9MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,401 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory was 70.3MB in the beginning and 70.2MB in the end (delta: 131.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:50:40,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1029.07ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 120.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.67ms. Allocated memory is still 174.1MB. Free memory was 120.0MB in the beginning and 117.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,403 INFO L158 Benchmark]: Boogie Preprocessor took 69.90ms. Allocated memory is still 174.1MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,403 INFO L158 Benchmark]: RCFGBuilder took 1109.65ms. Allocated memory is still 174.1MB. Free memory was 115.0MB in the beginning and 80.1MB in the end (delta: 34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,404 INFO L158 Benchmark]: TraceAbstraction took 7034.22ms. Allocated memory was 174.1MB in the beginning and 432.0MB in the end (delta: 257.9MB). Free memory was 79.4MB in the beginning and 285.1MB in the end (delta: -205.7MB). Peak memory consumption was 153.6MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,405 INFO L158 Benchmark]: Witness Printer took 77.44ms. Allocated memory is still 432.0MB. Free memory was 285.1MB in the beginning and 281.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:50:40,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory was 70.3MB in the beginning and 70.2MB in the end (delta: 131.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1029.07ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 120.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.67ms. Allocated memory is still 174.1MB. Free memory was 120.0MB in the beginning and 117.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.90ms. Allocated memory is still 174.1MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1109.65ms. Allocated memory is still 174.1MB. Free memory was 115.0MB in the beginning and 80.1MB in the end (delta: 34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7034.22ms. Allocated memory was 174.1MB in the beginning and 432.0MB in the end (delta: 257.9MB). Free memory was 79.4MB in the beginning and 285.1MB in the end (delta: -205.7MB). Peak memory consumption was 153.6MB. Max. memory is 16.1GB. * Witness Printer took 77.44ms. Allocated memory is still 432.0MB. Free memory was 285.1MB in the beginning and 281.9MB 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: - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 187 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 347 NumberOfCodeBlocks, 347 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:50:40,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79629b5-7f81-45bd-9ac0-fac84226ab17/bin/uautomizer-ug76WZFUDN/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