./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.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_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/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_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/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_c701d1dc-dbb7-44cd-ab78-a725dd136234/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 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b --- 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 13:55:02,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:55:02,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:55:02,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:55:02,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:55:02,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:55:02,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:55:02,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:55:02,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:55:02,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:55:02,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:55:02,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:55:02,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:55:02,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:55:02,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:55:02,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:55:02,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:55:02,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:55:02,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:55:02,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:55:02,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:55:02,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:55:02,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:55:02,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:55:02,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:55:02,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:55:02,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:55:02,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:55:02,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:55:02,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:55:02,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:55:02,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:55:02,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:55:02,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:55:02,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:55:02,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:55:02,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:55:02,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:55:02,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:55:02,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:55:02,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:55:02,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 13:55:02,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:55:02,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:55:02,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:55:02,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:55:02,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:55:02,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:55:02,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:55:02,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:55:02,409 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:55:02,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:55:02,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:55:02,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:55:02,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:55:02,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:55:02,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:55:02,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:55:02,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:55:02,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:55:02,412 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 13:55:02,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:55:02,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:55:02,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:55:02,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:55:02,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:55:02,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:55:02,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:55:02,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:55:02,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:55:02,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:55:02,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:55:02,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:55:02,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:55:02,416 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:55:02,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:55:02,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:55:02,417 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_c701d1dc-dbb7-44cd-ab78-a725dd136234/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b [2022-11-21 13:55:02,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:55:02,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:55:02,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:55:02,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:55:02,760 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:55:02,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-11-21 13:55:05,869 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:55:06,154 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:55:06,155 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-11-21 13:55:06,174 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/data/b76d7bf9f/153a30b2c35542abbcd3e160ebaf6f33/FLAGe441d35e7 [2022-11-21 13:55:06,192 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/data/b76d7bf9f/153a30b2c35542abbcd3e160ebaf6f33 [2022-11-21 13:55:06,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:55:06,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:55:06,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:55:06,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:55:06,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:55:06,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:06,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7655fd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06, skipping insertion in model container [2022-11-21 13:55:06,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:06,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:55:06,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:55:06,532 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_c701d1dc-dbb7-44cd-ab78-a725dd136234/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-11-21 13:55:06,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:55:06,841 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:55:06,858 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_c701d1dc-dbb7-44cd-ab78-a725dd136234/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-11-21 13:55:06,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:55:06,963 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:55:06,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06 WrapperNode [2022-11-21 13:55:06,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:55:06,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:55:06,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:55:06,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:55:06,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:06,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,048 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2022-11-21 13:55:07,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:55:07,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:55:07,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:55:07,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:55:07,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:55:07,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:55:07,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:55:07,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:55:07,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (1/1) ... [2022-11-21 13:55:07,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:55:07,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:55:07,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:55:07,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:55:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:55:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:55:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:55:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:55:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:55:07,204 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 13:55:07,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 13:55:07,205 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 13:55:07,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 13:55:07,205 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 13:55:07,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 13:55:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:55:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:55:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:55:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:55:07,208 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 13:55:07,414 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:55:07,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:55:07,766 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:55:07,928 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:55:07,929 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:55:07,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:55:07 BoogieIcfgContainer [2022-11-21 13:55:07,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:55:07,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:55:07,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:55:07,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:55:07,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:55:06" (1/3) ... [2022-11-21 13:55:07,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e1aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:55:07, skipping insertion in model container [2022-11-21 13:55:07,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:55:06" (2/3) ... [2022-11-21 13:55:07,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e1aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:55:07, skipping insertion in model container [2022-11-21 13:55:07,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:55:07" (3/3) ... [2022-11-21 13:55:07,950 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_pso.opt_tso.opt.i [2022-11-21 13:55:07,968 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:55:07,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:55:07,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 13:55:07,994 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:55:08,129 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:55:08,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 259 flow [2022-11-21 13:55:08,268 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2022-11-21 13:55:08,268 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:55:08,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 119 events. 2/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-21 13:55:08,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 122 transitions, 259 flow [2022-11-21 13:55:08,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 119 transitions, 247 flow [2022-11-21 13:55:08,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:55:08,305 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;@34a1caa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:55:08,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 13:55:08,318 INFO L130 PetriNetUnfolder]: 0/53 cut-off events. [2022-11-21 13:55:08,318 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:55:08,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:55:08,319 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] [2022-11-21 13:55:08,320 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 13:55:08,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:55:08,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1013225250, now seen corresponding path program 1 times [2022-11-21 13:55:08,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:55:08,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367359355] [2022-11-21 13:55:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:55:08,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:55:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:08,750 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 13:55:08,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:55:08,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367359355] [2022-11-21 13:55:08,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367359355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:55:08,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:55:08,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:55:08,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268640150] [2022-11-21 13:55:08,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:55:08,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:55:08,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:55:08,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:55:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:55:08,825 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 122 [2022-11-21 13:55:08,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 13:55:08,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:55:08,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 122 [2022-11-21 13:55:08,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:55:09,230 INFO L130 PetriNetUnfolder]: 319/776 cut-off events. [2022-11-21 13:55:09,231 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-21 13:55:09,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 776 events. 319/776 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4866 event pairs, 74 based on Foata normal form. 121/718 useless extension candidates. Maximal degree in co-relation 1282. Up to 492 conditions per place. [2022-11-21 13:55:09,248 INFO L137 encePairwiseOnDemand]: 110/122 looper letters, 24 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2022-11-21 13:55:09,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 323 flow [2022-11-21 13:55:09,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:55:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:55:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2022-11-21 13:55:09,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9316939890710383 [2022-11-21 13:55:09,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2022-11-21 13:55:09,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2022-11-21 13:55:09,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:55:09,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2022-11-21 13:55:09,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 13:55:09,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 13:55:09,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 13:55:09,294 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 247 flow. Second operand 3 states and 341 transitions. [2022-11-21 13:55:09,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 323 flow [2022-11-21 13:55:09,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 126 transitions, 318 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 13:55:09,306 INFO L231 Difference]: Finished difference. Result has 126 places, 119 transitions, 274 flow [2022-11-21 13:55:09,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=126, PETRI_TRANSITIONS=119} [2022-11-21 13:55:09,316 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2022-11-21 13:55:09,316 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 119 transitions, 274 flow [2022-11-21 13:55:09,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 13:55:09,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:55:09,318 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] [2022-11-21 13:55:09,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:55:09,319 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 13:55:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:55:09,320 INFO L85 PathProgramCache]: Analyzing trace with hash 637003118, now seen corresponding path program 1 times [2022-11-21 13:55:09,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:55:09,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379011646] [2022-11-21 13:55:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:55:09,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:55:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:09,576 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 13:55:09,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:55:09,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379011646] [2022-11-21 13:55:09,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379011646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:55:09,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:55:09,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:55:09,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336339816] [2022-11-21 13:55:09,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:55:09,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:55:09,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:55:09,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:55:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:55:09,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 122 [2022-11-21 13:55:09,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 119 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 13:55:09,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:55:09,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 122 [2022-11-21 13:55:09,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:55:09,846 INFO L130 PetriNetUnfolder]: 209/604 cut-off events. [2022-11-21 13:55:09,846 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-21 13:55:09,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 604 events. 209/604 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3577 event pairs, 26 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 1153. Up to 215 conditions per place. [2022-11-21 13:55:09,854 INFO L137 encePairwiseOnDemand]: 112/122 looper letters, 27 selfloop transitions, 10 changer transitions 3/138 dead transitions. [2022-11-21 13:55:09,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 138 transitions, 410 flow [2022-11-21 13:55:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:55:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:55:09,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2022-11-21 13:55:09,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9159836065573771 [2022-11-21 13:55:09,858 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 447 transitions. [2022-11-21 13:55:09,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 447 transitions. [2022-11-21 13:55:09,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:55:09,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 447 transitions. [2022-11-21 13:55:09,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 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 13:55:09,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 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 13:55:09,864 INFO L81 ComplementDD]: Finished complementDD. Result has 5 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 13:55:09,864 INFO L175 Difference]: Start difference. First operand has 126 places, 119 transitions, 274 flow. Second operand 4 states and 447 transitions. [2022-11-21 13:55:09,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 138 transitions, 410 flow [2022-11-21 13:55:09,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 138 transitions, 406 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:55:09,872 INFO L231 Difference]: Finished difference. Result has 130 places, 122 transitions, 330 flow [2022-11-21 13:55:09,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=130, PETRI_TRANSITIONS=122} [2022-11-21 13:55:09,874 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 3 predicate places. [2022-11-21 13:55:09,874 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 122 transitions, 330 flow [2022-11-21 13:55:09,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 13:55:09,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:55:09,876 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] [2022-11-21 13:55:09,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:55:09,876 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 13:55:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:55:09,878 INFO L85 PathProgramCache]: Analyzing trace with hash 637003119, now seen corresponding path program 1 times [2022-11-21 13:55:09,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:55:09,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29778944] [2022-11-21 13:55:09,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:55:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:55:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:10,077 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 13:55:10,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:55:10,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29778944] [2022-11-21 13:55:10,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29778944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:55:10,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:55:10,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:55:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27383488] [2022-11-21 13:55:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:55:10,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:55:10,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:55:10,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:55:10,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:55:10,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 122 [2022-11-21 13:55:10,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 122 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 13:55:10,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:55:10,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 122 [2022-11-21 13:55:10,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:55:10,245 INFO L130 PetriNetUnfolder]: 121/424 cut-off events. [2022-11-21 13:55:10,245 INFO L131 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2022-11-21 13:55:10,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 424 events. 121/424 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2146 event pairs, 17 based on Foata normal form. 47/458 useless extension candidates. Maximal degree in co-relation 806. Up to 169 conditions per place. [2022-11-21 13:55:10,250 INFO L137 encePairwiseOnDemand]: 115/122 looper letters, 21 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2022-11-21 13:55:10,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 123 transitions, 356 flow [2022-11-21 13:55:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:55:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:55:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2022-11-21 13:55:10,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8852459016393442 [2022-11-21 13:55:10,252 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2022-11-21 13:55:10,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2022-11-21 13:55:10,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:55:10,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2022-11-21 13:55:10,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 13:55:10,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 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 13:55:10,256 INFO L81 ComplementDD]: Finished complementDD. Result has 5 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 13:55:10,256 INFO L175 Difference]: Start difference. First operand has 130 places, 122 transitions, 330 flow. Second operand 4 states and 432 transitions. [2022-11-21 13:55:10,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 123 transitions, 356 flow [2022-11-21 13:55:10,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 123 transitions, 338 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-21 13:55:10,261 INFO L231 Difference]: Finished difference. Result has 127 places, 116 transitions, 278 flow [2022-11-21 13:55:10,261 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=127, PETRI_TRANSITIONS=116} [2022-11-21 13:55:10,262 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 0 predicate places. [2022-11-21 13:55:10,262 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 116 transitions, 278 flow [2022-11-21 13:55:10,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 13:55:10,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:55:10,263 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] [2022-11-21 13:55:10,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:55:10,263 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 13:55:10,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:55:10,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2011912969, now seen corresponding path program 1 times [2022-11-21 13:55:10,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:55:10,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606648956] [2022-11-21 13:55:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:55:10,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:55:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:55:10,482 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 13:55:10,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:55:10,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606648956] [2022-11-21 13:55:10,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606648956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:55:10,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:55:10,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:55:10,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377793485] [2022-11-21 13:55:10,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:55:10,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:55:10,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:55:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:55:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:55:10,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 122 [2022-11-21 13:55:10,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 116 transitions, 278 flow. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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 13:55:10,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:55:10,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 122 [2022-11-21 13:55:10,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:55:10,645 INFO L130 PetriNetUnfolder]: 115/439 cut-off events. [2022-11-21 13:55:10,645 INFO L131 PetriNetUnfolder]: For 215/215 co-relation queries the response was YES. [2022-11-21 13:55:10,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 439 events. 115/439 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2106 event pairs, 38 based on Foata normal form. 9/424 useless extension candidates. Maximal degree in co-relation 749. Up to 94 conditions per place. [2022-11-21 13:55:10,647 INFO L137 encePairwiseOnDemand]: 115/122 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2022-11-21 13:55:10,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 348 flow [2022-11-21 13:55:10,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:55:10,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:55:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2022-11-21 13:55:10,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8786885245901639 [2022-11-21 13:55:10,650 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2022-11-21 13:55:10,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2022-11-21 13:55:10,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:55:10,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2022-11-21 13:55:10,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 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 13:55:10,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 13:55:10,654 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 13:55:10,654 INFO L175 Difference]: Start difference. First operand has 127 places, 116 transitions, 278 flow. Second operand 5 states and 536 transitions. [2022-11-21 13:55:10,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 348 flow [2022-11-21 13:55:10,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 126 transitions, 333 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:55:10,657 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2022-11-21 13:55:10,657 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2022-11-21 13:55:10,658 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2022-11-21 13:55:10,658 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2022-11-21 13:55:10,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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 13:55:10,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-21 13:55:10,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-21 13:55:10,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-21 13:55:10,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-21 13:55:10,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-21 13:55:10,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-21 13:55:10,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 13:55:10,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-21 13:55:10,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-21 13:55:10,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-21 13:55:10,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-21 13:55:10,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-21 13:55:10,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-21 13:55:10,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-21 13:55:10,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-21 13:55:10,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:55:10,665 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 13:55:10,671 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:55:10,671 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:55:10,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:55:10 BasicIcfg [2022-11-21 13:55:10,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:55:10,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:55:10,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:55:10,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:55:10,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:55:07" (3/4) ... [2022-11-21 13:55:10,680 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:55:10,685 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 13:55:10,686 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 13:55:10,686 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 13:55:10,690 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-21 13:55:10,690 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 13:55:10,691 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:55:10,691 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:55:10,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:55:10,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:55:10,727 INFO L158 Benchmark]: Toolchain (without parser) took 4530.15ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 82.5MB in the beginning and 90.4MB in the end (delta: -7.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,727 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 100.7MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:55:10,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.61ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 82.3MB in the end (delta: -325.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.75ms. Allocated memory is still 121.6MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,728 INFO L158 Benchmark]: Boogie Preprocessor took 65.76ms. Allocated memory is still 121.6MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,728 INFO L158 Benchmark]: RCFGBuilder took 815.68ms. Allocated memory is still 121.6MB. Free memory was 78.1MB in the beginning and 47.2MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,729 INFO L158 Benchmark]: TraceAbstraction took 2742.27ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 46.2MB in the beginning and 93.5MB in the end (delta: -47.4MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,729 INFO L158 Benchmark]: Witness Printer took 49.10ms. Allocated memory is still 146.8MB. Free memory was 93.5MB in the beginning and 90.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:55:10,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 100.7MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 766.61ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 82.3MB in the end (delta: -325.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.75ms. Allocated memory is still 121.6MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.76ms. Allocated memory is still 121.6MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 815.68ms. Allocated memory is still 121.6MB. Free memory was 78.1MB in the beginning and 47.2MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2742.27ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 46.2MB in the beginning and 93.5MB in the end (delta: -47.4MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Witness Printer took 49.10ms. Allocated memory is still 146.8MB. Free memory was 93.5MB in the beginning and 90.4MB 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: 757]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 757]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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, 154 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: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 153 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=330occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 247 NumberOfCodeBlocks, 247 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 665 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 13:55:10,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c701d1dc-dbb7-44cd-ab78-a725dd136234/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