./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe003_power.opt.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_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/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_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/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_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/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 91a9aa2f0d12b9c007fce98740577392f81daf83caae08bbaade32d740f10d38 --- 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 16:16:58,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:16:58,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:16:58,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:16:58,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:16:58,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:16:58,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:16:58,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:16:58,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:16:58,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:16:58,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:16:58,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:16:58,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:16:58,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:16:58,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:16:58,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:16:58,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:16:58,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:16:58,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:16:58,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:16:58,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:16:58,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:16:58,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:16:58,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:16:58,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:16:58,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:16:58,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:16:58,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:16:58,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:16:58,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:16:58,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:16:58,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:16:58,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:16:58,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:16:58,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:16:58,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:16:58,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:16:58,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:16:58,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:16:58,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:16:58,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:16:58,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:16:58,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:16:58,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:16:58,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:16:58,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:16:58,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:16:58,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:16:58,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:16:58,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:16:58,203 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:16:58,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:16:58,205 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:16:58,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:16:58,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:16:58,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:16:58,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:16:58,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:16:58,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:16:58,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:16:58,207 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:16:58,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:16:58,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:16:58,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:16:58,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:16:58,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:16:58,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:16:58,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:16:58,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:16:58,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:16:58,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:16:58,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:16:58,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:16:58,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:16:58,211 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:16:58,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:16:58,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:16:58,212 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_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91a9aa2f0d12b9c007fce98740577392f81daf83caae08bbaade32d740f10d38 [2022-11-21 16:16:58,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:16:58,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:16:58,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:16:58,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:16:58,560 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:16:58,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe003_power.opt.i [2022-11-21 16:17:01,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:17:02,051 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:17:02,052 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/sv-benchmarks/c/pthread-wmm/safe003_power.opt.i [2022-11-21 16:17:02,068 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/data/554f043d1/fe828c44282c4e829abc659f9834b41f/FLAG4fad00302 [2022-11-21 16:17:02,087 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/data/554f043d1/fe828c44282c4e829abc659f9834b41f [2022-11-21 16:17:02,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:17:02,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:17:02,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:17:02,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:17:02,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:17:02,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221f715b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02, skipping insertion in model container [2022-11-21 16:17:02,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:17:02,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:17:02,322 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_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/sv-benchmarks/c/pthread-wmm/safe003_power.opt.i[951,964] [2022-11-21 16:17:02,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:17:02,639 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:17:02,654 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_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/sv-benchmarks/c/pthread-wmm/safe003_power.opt.i[951,964] [2022-11-21 16:17:02,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:17:02,798 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:17:02,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02 WrapperNode [2022-11-21 16:17:02,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:17:02,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:17:02,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:17:02,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:17:02,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,890 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 182 [2022-11-21 16:17:02,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:17:02,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:17:02,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:17:02,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:17:02,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:17:02,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:17:02,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:17:02,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:17:02,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (1/1) ... [2022-11-21 16:17:02,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:17:02,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:03,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:17:03,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:17:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:17:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:17:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:17:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:17:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:17:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:17:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:17:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:17:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:17:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:17:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:17:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:17:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:17:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:17:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:17:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:17:03,060 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 16:17:03,231 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:17:03,233 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:17:03,790 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:17:04,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:17:04,421 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:17:04,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:04 BoogieIcfgContainer [2022-11-21 16:17:04,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:17:04,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:17:04,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:17:04,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:17:04,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:17:02" (1/3) ... [2022-11-21 16:17:04,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2c9cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:04, skipping insertion in model container [2022-11-21 16:17:04,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:02" (2/3) ... [2022-11-21 16:17:04,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2c9cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:04, skipping insertion in model container [2022-11-21 16:17:04,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:04" (3/3) ... [2022-11-21 16:17:04,435 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_power.opt.i [2022-11-21 16:17:04,449 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:17:04,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:17:04,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 16:17:04,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:17:04,575 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:17:04,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 138 transitions, 291 flow [2022-11-21 16:17:04,789 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-21 16:17:04,790 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:17:04,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-21 16:17:04,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 138 transitions, 291 flow [2022-11-21 16:17:04,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 135 transitions, 279 flow [2022-11-21 16:17:04,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:17:04,834 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;@108ea2e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:17:04,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 16:17:04,866 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2022-11-21 16:17:04,866 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:17:04,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:04,868 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] [2022-11-21 16:17:04,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:17:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1266558006, now seen corresponding path program 1 times [2022-11-21 16:17:04,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:04,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630943861] [2022-11-21 16:17:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,458 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 16:17:05,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:05,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630943861] [2022-11-21 16:17:05,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630943861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:05,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:05,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:05,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047488518] [2022-11-21 16:17:05,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:05,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:05,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:05,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:05,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:05,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 16:17:05,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 16:17:05,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:05,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 16:17:05,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:06,591 INFO L130 PetriNetUnfolder]: 726/2858 cut-off events. [2022-11-21 16:17:06,591 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-21 16:17:06,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 2858 events. 726/2858 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 25080 event pairs, 377 based on Foata normal form. 121/2538 useless extension candidates. Maximal degree in co-relation 3985. Up to 930 conditions per place. [2022-11-21 16:17:06,629 INFO L137 encePairwiseOnDemand]: 126/138 looper letters, 30 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2022-11-21 16:17:06,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 145 transitions, 373 flow [2022-11-21 16:17:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-11-21 16:17:06,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323671497584541 [2022-11-21 16:17:06,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-11-21 16:17:06,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-11-21 16:17:06,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:06,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-11-21 16:17:06,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 16:17:06,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:17:06,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:17:06,686 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 279 flow. Second operand 3 states and 386 transitions. [2022-11-21 16:17:06,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 145 transitions, 373 flow [2022-11-21 16:17:06,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 145 transitions, 368 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:17:06,701 INFO L231 Difference]: Finished difference. Result has 142 places, 135 transitions, 306 flow [2022-11-21 16:17:06,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=142, PETRI_TRANSITIONS=135} [2022-11-21 16:17:06,712 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -1 predicate places. [2022-11-21 16:17:06,712 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 135 transitions, 306 flow [2022-11-21 16:17:06,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 16:17:06,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:06,713 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] [2022-11-21 16:17:06,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:17:06,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:17:06,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1437105636, now seen corresponding path program 1 times [2022-11-21 16:17:06,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:06,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677666197] [2022-11-21 16:17:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,057 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 16:17:07,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677666197] [2022-11-21 16:17:07,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677666197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:07,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:07,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65340325] [2022-11-21 16:17:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:07,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:17:07,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 16:17:07,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 135 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 16:17:07,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:07,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 16:17:07,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:07,706 INFO L130 PetriNetUnfolder]: 546/1622 cut-off events. [2022-11-21 16:17:07,707 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-21 16:17:07,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 1622 events. 546/1622 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 11910 event pairs, 141 based on Foata normal form. 0/1425 useless extension candidates. Maximal degree in co-relation 2873. Up to 479 conditions per place. [2022-11-21 16:17:07,727 INFO L137 encePairwiseOnDemand]: 128/138 looper letters, 36 selfloop transitions, 10 changer transitions 3/160 dead transitions. [2022-11-21 16:17:07,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 472 flow [2022-11-21 16:17:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:17:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:17:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-21 16:17:07,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9202898550724637 [2022-11-21 16:17:07,732 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-21 16:17:07,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-21 16:17:07,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:07,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-21 16:17:07,735 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) [2022-11-21 16:17:07,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:17:07,738 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:17:07,738 INFO L175 Difference]: Start difference. First operand has 142 places, 135 transitions, 306 flow. Second operand 4 states and 508 transitions. [2022-11-21 16:17:07,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 472 flow [2022-11-21 16:17:07,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 160 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:17:07,745 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 362 flow [2022-11-21 16:17:07,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-11-21 16:17:07,747 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 3 predicate places. [2022-11-21 16:17:07,748 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 362 flow [2022-11-21 16:17:07,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 16:17:07,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:07,749 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] [2022-11-21 16:17:07,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:17:07,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:17:07,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1437105637, now seen corresponding path program 1 times [2022-11-21 16:17:07,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:07,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517728996] [2022-11-21 16:17:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:07,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,107 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 16:17:08,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:08,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517728996] [2022-11-21 16:17:08,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517728996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:08,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:08,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674098237] [2022-11-21 16:17:08,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:08,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:08,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:08,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:08,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:17:08,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 16:17:08,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 16:17:08,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:08,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 16:17:08,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:08,638 INFO L130 PetriNetUnfolder]: 394/1710 cut-off events. [2022-11-21 16:17:08,638 INFO L131 PetriNetUnfolder]: For 902/902 co-relation queries the response was YES. [2022-11-21 16:17:08,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2779 conditions, 1710 events. 394/1710 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13210 event pairs, 209 based on Foata normal form. 78/1687 useless extension candidates. Maximal degree in co-relation 2705. Up to 401 conditions per place. [2022-11-21 16:17:08,654 INFO L137 encePairwiseOnDemand]: 131/138 looper letters, 27 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2022-11-21 16:17:08,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 142 transitions, 406 flow [2022-11-21 16:17:08,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:17:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:17:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2022-11-21 16:17:08,659 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8876811594202898 [2022-11-21 16:17:08,659 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 490 transitions. [2022-11-21 16:17:08,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 490 transitions. [2022-11-21 16:17:08,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:08,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 490 transitions. [2022-11-21 16:17:08,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 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 16:17:08,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:17:08,663 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 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 16:17:08,664 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 362 flow. Second operand 4 states and 490 transitions. [2022-11-21 16:17:08,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 142 transitions, 406 flow [2022-11-21 16:17:08,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 142 transitions, 388 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-21 16:17:08,676 INFO L231 Difference]: Finished difference. Result has 143 places, 132 transitions, 310 flow [2022-11-21 16:17:08,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=143, PETRI_TRANSITIONS=132} [2022-11-21 16:17:08,678 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 0 predicate places. [2022-11-21 16:17:08,679 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 132 transitions, 310 flow [2022-11-21 16:17:08,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 16:17:08,679 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:08,680 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] [2022-11-21 16:17:08,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:17:08,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:17:08,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:08,682 INFO L85 PathProgramCache]: Analyzing trace with hash 130421901, now seen corresponding path program 1 times [2022-11-21 16:17:08,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:08,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563887750] [2022-11-21 16:17:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:08,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,982 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 16:17:08,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:08,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563887750] [2022-11-21 16:17:08,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563887750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:08,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:08,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:17:08,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107782482] [2022-11-21 16:17:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:08,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:08,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:17:08,985 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 16:17:08,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 16:17:08,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:08,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 16:17:08,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:09,406 INFO L130 PetriNetUnfolder]: 385/1515 cut-off events. [2022-11-21 16:17:09,406 INFO L131 PetriNetUnfolder]: For 527/527 co-relation queries the response was YES. [2022-11-21 16:17:09,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1515 events. 385/1515 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11150 event pairs, 163 based on Foata normal form. 12/1448 useless extension candidates. Maximal degree in co-relation 2424. Up to 269 conditions per place. [2022-11-21 16:17:09,414 INFO L137 encePairwiseOnDemand]: 131/138 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2022-11-21 16:17:09,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 148 transitions, 410 flow [2022-11-21 16:17:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:17:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 610 transitions. [2022-11-21 16:17:09,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2022-11-21 16:17:09,418 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 610 transitions. [2022-11-21 16:17:09,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 610 transitions. [2022-11-21 16:17:09,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:09,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 610 transitions. [2022-11-21 16:17:09,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 16:17:09,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 16:17:09,425 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 16:17:09,425 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 310 flow. Second operand 5 states and 610 transitions. [2022-11-21 16:17:09,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 148 transitions, 410 flow [2022-11-21 16:17:09,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 148 transitions, 395 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:17:09,430 INFO L231 Difference]: Finished difference. Result has 140 places, 0 transitions, 0 flow [2022-11-21 16:17:09,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=140, PETRI_TRANSITIONS=0} [2022-11-21 16:17:09,431 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -3 predicate places. [2022-11-21 16:17:09,432 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 0 transitions, 0 flow [2022-11-21 16:17:09,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 16:17:09,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-21 16:17:09,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-21 16:17:09,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-21 16:17:09,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-21 16:17:09,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-21 16:17:09,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-21 16:17:09,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 16:17:09,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-21 16:17:09,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-21 16:17:09,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-21 16:17:09,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-21 16:17:09,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-21 16:17:09,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-21 16:17:09,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-21 16:17:09,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-21 16:17:09,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:17:09,441 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 16:17:09,448 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:17:09,449 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:17:09,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:17:09 BasicIcfg [2022-11-21 16:17:09,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:17:09,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:17:09,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:17:09,457 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:17:09,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:04" (3/4) ... [2022-11-21 16:17:09,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:17:09,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:17:09,468 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:17:09,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:17:09,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-11-21 16:17:09,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 16:17:09,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:17:09,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:17:09,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:17:09,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:17:09,529 INFO L158 Benchmark]: Toolchain (without parser) took 7437.14ms. Allocated memory was 159.4MB in the beginning and 274.7MB in the end (delta: 115.3MB). Free memory was 127.1MB in the beginning and 85.7MB in the end (delta: 41.4MB). Peak memory consumption was 159.9MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,529 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 75.7MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:17:09,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.37ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 102.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.17ms. Allocated memory is still 159.4MB. Free memory was 102.7MB in the beginning and 100.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,531 INFO L158 Benchmark]: Boogie Preprocessor took 72.44ms. Allocated memory is still 159.4MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,531 INFO L158 Benchmark]: RCFGBuilder took 1457.40ms. Allocated memory is still 159.4MB. Free memory was 98.0MB in the beginning and 83.6MB in the end (delta: 14.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,532 INFO L158 Benchmark]: TraceAbstraction took 5029.87ms. Allocated memory was 159.4MB in the beginning and 274.7MB in the end (delta: 115.3MB). Free memory was 82.7MB in the beginning and 88.8MB in the end (delta: -6.1MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,532 INFO L158 Benchmark]: Witness Printer took 71.71ms. Allocated memory is still 274.7MB. Free memory was 88.8MB in the beginning and 85.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:17:09,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 75.7MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.37ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 102.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.17ms. Allocated memory is still 159.4MB. Free memory was 102.7MB in the beginning and 100.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.44ms. Allocated memory is still 159.4MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1457.40ms. Allocated memory is still 159.4MB. Free memory was 98.0MB in the beginning and 83.6MB in the end (delta: 14.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5029.87ms. Allocated memory was 159.4MB in the beginning and 274.7MB in the end (delta: 115.3MB). Free memory was 82.7MB in the beginning and 88.8MB in the end (delta: -6.1MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. * Witness Printer took 71.71ms. Allocated memory is still 274.7MB. Free memory was 88.8MB in the beginning and 85.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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 7 procedures, 170 locations, 15 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: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:17:09,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7acbc9f8-3672-4f36-bc52-c4e79c3e46f9/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