./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a --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 a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 --- 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-b5237d8 [2022-11-21 13:41:27,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:41:27,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:41:27,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:41:27,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:41:27,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:41:27,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:41:27,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:41:27,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:41:27,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:41:27,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:41:27,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:41:27,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:41:27,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:41:27,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:41:27,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:41:27,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:41:27,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:41:27,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:41:27,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:41:27,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:41:27,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:41:27,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:41:27,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:41:27,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:41:27,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:41:27,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:41:27,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:41:27,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:41:27,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:41:27,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:41:27,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:41:27,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:41:27,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:41:27,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:41:27,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:41:27,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:41:27,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:41:27,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:41:27,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:41:27,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:41:27,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 13:41:27,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:41:27,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:41:27,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:41:27,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:41:27,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:41:27,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:41:27,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:41:27,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:41:27,206 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:41:27,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:41:27,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:41:27,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:41:27,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:41:27,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:41:27,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:41:27,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:41:27,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:41:27,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:41:27,210 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 13:41:27,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:41:27,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:41:27,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:41:27,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:41:27,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:41:27,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:41:27,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:41:27,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:41:27,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:41:27,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:41:27,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:41:27,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:41:27,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:41:27,213 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:41:27,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:41:27,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:41:27,214 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_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 [2022-11-21 13:41:27,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:41:27,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:41:27,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:41:27,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:41:27,574 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:41:27,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2022-11-21 13:41:30,574 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:41:30,872 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:41:30,873 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2022-11-21 13:41:30,888 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/data/f0574a9ea/a893986822734281a88816365853128b/FLAG2917c01d4 [2022-11-21 13:41:30,904 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/data/f0574a9ea/a893986822734281a88816365853128b [2022-11-21 13:41:30,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:41:30,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:41:30,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:41:30,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:41:30,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:41:30,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:30" (1/1) ... [2022-11-21 13:41:30,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6329d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:30, skipping insertion in model container [2022-11-21 13:41:30,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:30" (1/1) ... [2022-11-21 13:41:30,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:41:30,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:41:31,146 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_7f997905-b424-4a79-b3be-dd953aa58cc0/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i[995,1008] [2022-11-21 13:41:31,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:41:31,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:41:31,492 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_7f997905-b424-4a79-b3be-dd953aa58cc0/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i[995,1008] [2022-11-21 13:41:31,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:41:31,625 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:41:31,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31 WrapperNode [2022-11-21 13:41:31,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:41:31,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:41:31,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:41:31,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:41:31,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,722 INFO L138 Inliner]: procedures = 177, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2022-11-21 13:41:31,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:41:31,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:41:31,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:41:31,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:41:31,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:41:31,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:41:31,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:41:31,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:41:31,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (1/1) ... [2022-11-21 13:41:31,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:41:31,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:41:31,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:41:31,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:41:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:41:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:41:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:41:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:41:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:41:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:41:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 13:41:31,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 13:41:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 13:41:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 13:41:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 13:41:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 13:41:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 13:41:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 13:41:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:41:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:41:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:41:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:41:31,896 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:41:32,129 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:41:32,131 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:41:32,852 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:41:33,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:41:33,348 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:41:33,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:33 BoogieIcfgContainer [2022-11-21 13:41:33,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:41:33,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:41:33,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:41:33,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:41:33,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:41:30" (1/3) ... [2022-11-21 13:41:33,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d70f705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:33, skipping insertion in model container [2022-11-21 13:41:33,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:31" (2/3) ... [2022-11-21 13:41:33,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d70f705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:33, skipping insertion in model container [2022-11-21 13:41:33,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:33" (3/3) ... [2022-11-21 13:41:33,366 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2022-11-21 13:41:33,380 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:41:33,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:41:33,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 13:41:33,393 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:41:33,506 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:41:33,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 334 flow [2022-11-21 13:41:33,675 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-11-21 13:41:33,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:41:33,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 2/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-11-21 13:41:33,686 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 157 transitions, 334 flow [2022-11-21 13:41:33,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 153 transitions, 318 flow [2022-11-21 13:41:33,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:41:33,712 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;@9aabc40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:41:33,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 13:41:33,730 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2022-11-21 13:41:33,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:41:33,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:41:33,731 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] [2022-11-21 13:41:33,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:41:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:41:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash 840618747, now seen corresponding path program 1 times [2022-11-21 13:41:33,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:41:33,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055400836] [2022-11-21 13:41:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:41:33,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:41:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:41:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:41:34,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:41:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055400836] [2022-11-21 13:41:34,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055400836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:41:34,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:41:34,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:41:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998777276] [2022-11-21 13:41:34,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:41:34,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:41:34,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:41:34,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:41:34,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:41:34,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-11-21 13:41:34,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-11-21 13:41:34,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:41:34,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-11-21 13:41:34,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:41:37,082 INFO L130 PetriNetUnfolder]: 3157/11121 cut-off events. [2022-11-21 13:41:37,082 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-11-21 13:41:37,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15758 conditions, 11121 events. 3157/11121 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 129702 event pairs, 2352 based on Foata normal form. 574/9440 useless extension candidates. Maximal degree in co-relation 15681. Up to 4404 conditions per place. [2022-11-21 13:41:37,202 INFO L137 encePairwiseOnDemand]: 142/157 looper letters, 31 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2022-11-21 13:41:37,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 419 flow [2022-11-21 13:41:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:41:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:41:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2022-11-21 13:41:37,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9363057324840764 [2022-11-21 13:41:37,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2022-11-21 13:41:37,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2022-11-21 13:41:37,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:41:37,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2022-11-21 13:41:37,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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) [2022-11-21 13:41:37,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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) [2022-11-21 13:41:37,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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) [2022-11-21 13:41:37,270 INFO L175 Difference]: Start difference. First operand has 164 places, 153 transitions, 318 flow. Second operand 3 states and 441 transitions. [2022-11-21 13:41:37,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 419 flow [2022-11-21 13:41:37,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 163 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:41:37,284 INFO L231 Difference]: Finished difference. Result has 162 places, 154 transitions, 355 flow [2022-11-21 13:41:37,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=162, PETRI_TRANSITIONS=154} [2022-11-21 13:41:37,292 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -2 predicate places. [2022-11-21 13:41:37,295 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 154 transitions, 355 flow [2022-11-21 13:41:37,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-11-21 13:41:37,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:41:37,296 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] [2022-11-21 13:41:37,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:41:37,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:41:37,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:41:37,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1771724076, now seen corresponding path program 1 times [2022-11-21 13:41:37,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:41:37,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409375131] [2022-11-21 13:41:37,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:41:37,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:41:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:41:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:41:37,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:41:37,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409375131] [2022-11-21 13:41:37,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409375131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:41:37,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:41:37,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:41:37,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676938035] [2022-11-21 13:41:37,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:41:37,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:41:37,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:41:37,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:41:37,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:41:37,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-11-21 13:41:37,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 154 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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) [2022-11-21 13:41:37,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:41:37,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-11-21 13:41:37,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:41:38,840 INFO L130 PetriNetUnfolder]: 1432/5310 cut-off events. [2022-11-21 13:41:38,840 INFO L131 PetriNetUnfolder]: For 289/289 co-relation queries the response was YES. [2022-11-21 13:41:38,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8711 conditions, 5310 events. 1432/5310 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 53301 event pairs, 946 based on Foata normal form. 0/4538 useless extension candidates. Maximal degree in co-relation 8635. Up to 1974 conditions per place. [2022-11-21 13:41:38,890 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 27 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2022-11-21 13:41:38,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 427 flow [2022-11-21 13:41:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:41:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:41:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 560 transitions. [2022-11-21 13:41:38,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.89171974522293 [2022-11-21 13:41:38,896 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 560 transitions. [2022-11-21 13:41:38,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 560 transitions. [2022-11-21 13:41:38,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:41:38,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 560 transitions. [2022-11-21 13:41:38,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2022-11-21 13:41:38,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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) [2022-11-21 13:41:38,906 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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) [2022-11-21 13:41:38,906 INFO L175 Difference]: Start difference. First operand has 162 places, 154 transitions, 355 flow. Second operand 4 states and 560 transitions. [2022-11-21 13:41:38,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 427 flow [2022-11-21 13:41:38,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:41:38,915 INFO L231 Difference]: Finished difference. Result has 160 places, 150 transitions, 344 flow [2022-11-21 13:41:38,916 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=160, PETRI_TRANSITIONS=150} [2022-11-21 13:41:38,919 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -4 predicate places. [2022-11-21 13:41:38,919 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 150 transitions, 344 flow [2022-11-21 13:41:38,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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) [2022-11-21 13:41:38,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:41:38,920 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] [2022-11-21 13:41:38,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:41:38,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:41:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:41:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1771724077, now seen corresponding path program 1 times [2022-11-21 13:41:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:41:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145675384] [2022-11-21 13:41:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:41:38,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:41:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:41:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:41:39,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:41:39,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145675384] [2022-11-21 13:41:39,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145675384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:41:39,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:41:39,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:41:39,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071747817] [2022-11-21 13:41:39,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:41:39,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:41:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:41:39,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:41:39,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:41:39,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-11-21 13:41:39,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 150 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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) [2022-11-21 13:41:39,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:41:39,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-11-21 13:41:39,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:41:39,874 INFO L130 PetriNetUnfolder]: 733/1793 cut-off events. [2022-11-21 13:41:39,874 INFO L131 PetriNetUnfolder]: For 243/243 co-relation queries the response was YES. [2022-11-21 13:41:39,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3607 conditions, 1793 events. 733/1793 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 12308 event pairs, 91 based on Foata normal form. 0/1603 useless extension candidates. Maximal degree in co-relation 3530. Up to 750 conditions per place. [2022-11-21 13:41:39,889 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 35 selfloop transitions, 9 changer transitions 0/171 dead transitions. [2022-11-21 13:41:39,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 171 transitions, 492 flow [2022-11-21 13:41:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:41:39,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:41:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 572 transitions. [2022-11-21 13:41:39,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.910828025477707 [2022-11-21 13:41:39,895 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 572 transitions. [2022-11-21 13:41:39,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 572 transitions. [2022-11-21 13:41:39,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:41:39,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 572 transitions. [2022-11-21 13:41:39,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2022-11-21 13:41:39,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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) [2022-11-21 13:41:39,899 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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) [2022-11-21 13:41:39,899 INFO L175 Difference]: Start difference. First operand has 160 places, 150 transitions, 344 flow. Second operand 4 states and 572 transitions. [2022-11-21 13:41:39,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 171 transitions, 492 flow [2022-11-21 13:41:39,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 171 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:41:39,907 INFO L231 Difference]: Finished difference. Result has 162 places, 154 transitions, 396 flow [2022-11-21 13:41:39,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=162, PETRI_TRANSITIONS=154} [2022-11-21 13:41:39,909 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -2 predicate places. [2022-11-21 13:41:39,909 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 154 transitions, 396 flow [2022-11-21 13:41:39,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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) [2022-11-21 13:41:39,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:41:39,910 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, 1, 1] [2022-11-21 13:41:39,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:41:39,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:41:39,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:41:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash -496043879, now seen corresponding path program 1 times [2022-11-21 13:41:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:41:39,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953633488] [2022-11-21 13:41:39,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:41:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:41:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:41:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:41:40,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:41:40,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953633488] [2022-11-21 13:41:40,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953633488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:41:40,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:41:40,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:41:40,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342303301] [2022-11-21 13:41:40,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:41:40,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:41:40,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:41:40,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:41:40,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:41:40,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-11-21 13:41:40,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 154 transitions, 396 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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) [2022-11-21 13:41:40,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:41:40,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-11-21 13:41:40,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:41:40,666 INFO L130 PetriNetUnfolder]: 541/1466 cut-off events. [2022-11-21 13:41:40,667 INFO L131 PetriNetUnfolder]: For 501/501 co-relation queries the response was YES. [2022-11-21 13:41:40,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3312 conditions, 1466 events. 541/1466 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9646 event pairs, 47 based on Foata normal form. 0/1411 useless extension candidates. Maximal degree in co-relation 3234. Up to 368 conditions per place. [2022-11-21 13:41:40,681 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 38 selfloop transitions, 13 changer transitions 4/182 dead transitions. [2022-11-21 13:41:40,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 182 transitions, 590 flow [2022-11-21 13:41:40,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:41:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:41:40,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 714 transitions. [2022-11-21 13:41:40,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9095541401273886 [2022-11-21 13:41:40,688 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 714 transitions. [2022-11-21 13:41:40,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 714 transitions. [2022-11-21 13:41:40,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:41:40,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 714 transitions. [2022-11-21 13:41:40,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 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) [2022-11-21 13:41:40,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 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) [2022-11-21 13:41:40,694 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 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) [2022-11-21 13:41:40,694 INFO L175 Difference]: Start difference. First operand has 162 places, 154 transitions, 396 flow. Second operand 5 states and 714 transitions. [2022-11-21 13:41:40,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 182 transitions, 590 flow [2022-11-21 13:41:40,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 182 transitions, 572 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-21 13:41:40,701 INFO L231 Difference]: Finished difference. Result has 165 places, 154 transitions, 420 flow [2022-11-21 13:41:40,701 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=165, PETRI_TRANSITIONS=154} [2022-11-21 13:41:40,703 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 1 predicate places. [2022-11-21 13:41:40,704 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 154 transitions, 420 flow [2022-11-21 13:41:40,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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) [2022-11-21 13:41:40,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:41:40,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:41:40,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:41:40,706 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:41:40,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:41:40,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1298169574, now seen corresponding path program 1 times [2022-11-21 13:41:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:41:40,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647155522] [2022-11-21 13:41:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:41:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:41:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:41:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:41:40,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:41:40,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647155522] [2022-11-21 13:41:40,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647155522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:41:40,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:41:40,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:41:40,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634598805] [2022-11-21 13:41:40,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:41:40,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:41:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:41:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:41:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:41:40,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2022-11-21 13:41:40,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-11-21 13:41:40,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:41:40,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2022-11-21 13:41:40,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:41:41,470 INFO L130 PetriNetUnfolder]: 514/1411 cut-off events. [2022-11-21 13:41:41,470 INFO L131 PetriNetUnfolder]: For 744/744 co-relation queries the response was YES. [2022-11-21 13:41:41,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3257 conditions, 1411 events. 514/1411 cut-off events. For 744/744 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 9140 event pairs, 47 based on Foata normal form. 16/1388 useless extension candidates. Maximal degree in co-relation 3178. Up to 278 conditions per place. [2022-11-21 13:41:41,476 INFO L137 encePairwiseOnDemand]: 148/157 looper letters, 0 selfloop transitions, 0 changer transitions 174/174 dead transitions. [2022-11-21 13:41:41,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 174 transitions, 542 flow [2022-11-21 13:41:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:41:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:41:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2022-11-21 13:41:41,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8885350318471338 [2022-11-21 13:41:41,479 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2022-11-21 13:41:41,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2022-11-21 13:41:41,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:41:41,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2022-11-21 13:41:41,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2022-11-21 13:41:41,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 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) [2022-11-21 13:41:41,485 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 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) [2022-11-21 13:41:41,485 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 420 flow. Second operand 6 states and 837 transitions. [2022-11-21 13:41:41,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 174 transitions, 542 flow [2022-11-21 13:41:41,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 174 transitions, 487 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 13:41:41,498 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2022-11-21 13:41:41,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2022-11-21 13:41:41,499 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -4 predicate places. [2022-11-21 13:41:41,499 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2022-11-21 13:41:41,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2022-11-21 13:41:41,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 13:41:41,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 13:41:41,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 13:41:41,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 13:41:41,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 13:41:41,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 13:41:41,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 13:41:41,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 13:41:41,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 13:41:41,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 13:41:41,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 13:41:41,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 13:41:41,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 13:41:41,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 13:41:41,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 13:41:41,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 13:41:41,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 13:41:41,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 13:41:41,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 13:41:41,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 13:41:41,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:41:41,507 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 13:41:41,513 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:41:41,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:41:41,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:41:41 BasicIcfg [2022-11-21 13:41:41,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:41:41,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:41:41,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:41:41,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:41:41,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:33" (3/4) ... [2022-11-21 13:41:41,522 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:41:41,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 13:41:41,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 13:41:41,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 13:41:41,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 13:41:41,533 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2022-11-21 13:41:41,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 13:41:41,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:41:41,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:41:41,583 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:41:41,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:41:41,584 INFO L158 Benchmark]: Toolchain (without parser) took 10675.17ms. Allocated memory was 157.3MB in the beginning and 700.4MB in the end (delta: 543.2MB). Free memory was 126.3MB in the beginning and 405.6MB in the end (delta: -279.4MB). Peak memory consumption was 263.3MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,584 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:41:41,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.46ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 101.3MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.65ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 98.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,585 INFO L158 Benchmark]: Boogie Preprocessor took 77.28ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 96.3MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,585 INFO L158 Benchmark]: RCFGBuilder took 1550.06ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 96.3MB in the beginning and 147.7MB in the end (delta: -51.4MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,586 INFO L158 Benchmark]: TraceAbstraction took 8164.32ms. Allocated memory was 188.7MB in the beginning and 700.4MB in the end (delta: 511.7MB). Free memory was 147.7MB in the beginning and 408.8MB in the end (delta: -261.1MB). Peak memory consumption was 498.1MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,586 INFO L158 Benchmark]: Witness Printer took 64.19ms. Allocated memory is still 700.4MB. Free memory was 408.8MB in the beginning and 405.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:41:41,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 716.46ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 101.3MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.65ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 98.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.28ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 96.3MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1550.06ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 96.3MB in the beginning and 147.7MB in the end (delta: -51.4MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8164.32ms. Allocated memory was 188.7MB in the beginning and 700.4MB in the end (delta: 511.7MB). Free memory was 147.7MB in the beginning and 408.8MB in the end (delta: -261.1MB). Peak memory consumption was 498.1MB. Max. memory is 16.1GB. * Witness Printer took 64.19ms. Allocated memory is still 700.4MB. Free memory was 408.8MB in the beginning and 405.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 832]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 832]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: 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, 195 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: 8.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 17 mSDtfsCounter, 265 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred in iteration=4, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 423 ConstructedInterpolants, 0 QuantifiedInterpolants, 1189 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! [2022-11-21 13:41:41,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f997905-b424-4a79-b3be-dd953aa58cc0/bin/uautomizer-vX5HgA9Q3a/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