./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix042.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix042.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 94656be5559ee6994f8d95e82c06571dfbe5b53833c4e842ade3fa022ec89a57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:33,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:33,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:03:33,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:33,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:33,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:33,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:33,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:33,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:33,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:33,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:33,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:33,166 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:33,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:33,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:33,168 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:33,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:33,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:33,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:33,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:33,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:33,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:33,172 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:03:33,172 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:33,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:33,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:33,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:33,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:33,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:33,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:33,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:33,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:33,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:33,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:33,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:33,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:33,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:33,192 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:33,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:33,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:33,193 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:33,194 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94656be5559ee6994f8d95e82c06571dfbe5b53833c4e842ade3fa022ec89a57 [2023-11-19 08:03:33,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:33,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:33,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:33,596 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:33,598 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:33,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix042.opt.i [2023-11-19 08:03:36,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:37,181 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:37,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/sv-benchmarks/c/pthread-wmm/mix042.opt.i [2023-11-19 08:03:37,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/data/1e73efc71/f2ffff6946904f02a9d33a8ffa938d70/FLAGf79b69f8b [2023-11-19 08:03:37,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/data/1e73efc71/f2ffff6946904f02a9d33a8ffa938d70 [2023-11-19 08:03:37,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:37,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:37,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:37,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:37,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:37,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c12584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37, skipping insertion in model container [2023-11-19 08:03:37,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:37,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:37,705 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:37,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:37,871 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:03:37,871 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:03:37,880 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:37,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37 WrapperNode [2023-11-19 08:03:37,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:37,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:37,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:37,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:37,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,974 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 160 [2023-11-19 08:03:37,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:37,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:37,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:37,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:37,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:38,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:38,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:38,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:38,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:38,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:38,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:38,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:38,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:38,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:38,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:38,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:38,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:38,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:38,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:03:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:03:38,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:03:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:03:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:03:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 08:03:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 08:03:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:03:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:38,126 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:03:38,292 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:38,294 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:38,756 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:38,952 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:38,952 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:03:38,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:38 BoogieIcfgContainer [2023-11-19 08:03:38,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:38,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:38,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:38,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:38,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:37" (1/3) ... [2023-11-19 08:03:38,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:38, skipping insertion in model container [2023-11-19 08:03:38,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (2/3) ... [2023-11-19 08:03:38,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:38, skipping insertion in model container [2023-11-19 08:03:38,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:38" (3/3) ... [2023-11-19 08:03:38,966 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.opt.i [2023-11-19 08:03:38,976 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:03:38,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:38,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:03:38,986 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:03:39,060 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:03:39,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 124 transitions, 260 flow [2023-11-19 08:03:39,171 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-19 08:03:39,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:39,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 08:03:39,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 124 transitions, 260 flow [2023-11-19 08:03:39,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 121 transitions, 251 flow [2023-11-19 08:03:39,188 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:39,199 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-19 08:03:39,202 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 121 transitions, 251 flow [2023-11-19 08:03:39,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 251 flow [2023-11-19 08:03:39,238 INFO L124 PetriNetUnfolderBase]: 3/121 cut-off events. [2023-11-19 08:03:39,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:39,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 3/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 08:03:39,243 INFO L119 LiptonReduction]: Number of co-enabled transitions 3082 [2023-11-19 08:03:44,162 INFO L134 LiptonReduction]: Checked pairs total: 8895 [2023-11-19 08:03:44,163 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-11-19 08:03:44,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:44,195 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=LoopHeads, 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;@cac1c6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:44,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 08:03:44,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:03:44,201 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 08:03:44,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:44,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:44,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:03:44,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:03:44,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash 536871632, now seen corresponding path program 1 times [2023-11-19 08:03:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:44,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379605238] [2023-11-19 08:03:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:44,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:44,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:44,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379605238] [2023-11-19 08:03:44,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379605238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:44,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:44,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:03:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665492756] [2023-11-19 08:03:44,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:44,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:44,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:44,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:44,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 08:03:44,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-11-19 08:03:44,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:44,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 08:03:44,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:45,057 INFO L124 PetriNetUnfolderBase]: 921/1506 cut-off events. [2023-11-19 08:03:45,057 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 08:03:45,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3027 conditions, 1506 events. 921/1506 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7914 event pairs, 415 based on Foata normal form. 98/1139 useless extension candidates. Maximal degree in co-relation 3016. Up to 1359 conditions per place. [2023-11-19 08:03:45,081 INFO L140 encePairwiseOnDemand]: 217/229 looper letters, 34 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-11-19 08:03:45,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 175 flow [2023-11-19 08:03:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:45,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-11-19 08:03:45,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5138282387190685 [2023-11-19 08:03:45,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-11-19 08:03:45,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-11-19 08:03:45,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:45,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-11-19 08:03:45,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-11-19 08:03:45,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-19 08:03:45,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-19 08:03:45,130 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 69 flow. Second operand 3 states and 353 transitions. [2023-11-19 08:03:45,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 175 flow [2023-11-19 08:03:45,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:03:45,137 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 102 flow [2023-11-19 08:03:45,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-11-19 08:03:45,144 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-19 08:03:45,144 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 102 flow [2023-11-19 08:03:45,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2023-11-19 08:03:45,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:45,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:45,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:45,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:03:45,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:45,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1598827470, now seen corresponding path program 1 times [2023-11-19 08:03:45,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:45,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660165955] [2023-11-19 08:03:45,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:45,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:45,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660165955] [2023-11-19 08:03:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660165955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:45,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:45,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751790304] [2023-11-19 08:03:45,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:45,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:45,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:45,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:45,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 08:03:45,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2023-11-19 08:03:45,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:45,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 08:03:45,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:45,611 INFO L124 PetriNetUnfolderBase]: 627/1040 cut-off events. [2023-11-19 08:03:45,611 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-11-19 08:03:45,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 1040 events. 627/1040 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5052 event pairs, 231 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2548. Up to 892 conditions per place. [2023-11-19 08:03:45,621 INFO L140 encePairwiseOnDemand]: 222/229 looper letters, 31 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-11-19 08:03:45,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 184 flow [2023-11-19 08:03:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:03:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2023-11-19 08:03:45,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868995633187773 [2023-11-19 08:03:45,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 446 transitions. [2023-11-19 08:03:45,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 446 transitions. [2023-11-19 08:03:45,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:45,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 446 transitions. [2023-11-19 08:03:45,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2023-11-19 08:03:45,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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) [2023-11-19 08:03:45,632 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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) [2023-11-19 08:03:45,632 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 102 flow. Second operand 4 states and 446 transitions. [2023-11-19 08:03:45,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 184 flow [2023-11-19 08:03:45,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:45,635 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 94 flow [2023-11-19 08:03:45,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-11-19 08:03:45,636 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-11-19 08:03:45,637 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 94 flow [2023-11-19 08:03:45,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2023-11-19 08:03:45,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:45,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:45,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:03:45,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:03:45,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:45,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1598827471, now seen corresponding path program 1 times [2023-11-19 08:03:45,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:45,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614587248] [2023-11-19 08:03:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:45,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:45,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:45,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614587248] [2023-11-19 08:03:45,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614587248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:45,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:45,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:45,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295593674] [2023-11-19 08:03:45,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:45,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:45,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:45,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:45,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 08:03:45,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2023-11-19 08:03:45,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:45,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 08:03:45,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:45,904 INFO L124 PetriNetUnfolderBase]: 246/457 cut-off events. [2023-11-19 08:03:45,904 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2023-11-19 08:03:45,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 457 events. 246/457 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1877 event pairs, 81 based on Foata normal form. 21/455 useless extension candidates. Maximal degree in co-relation 1102. Up to 165 conditions per place. [2023-11-19 08:03:45,909 INFO L140 encePairwiseOnDemand]: 221/229 looper letters, 36 selfloop transitions, 7 changer transitions 3/50 dead transitions. [2023-11-19 08:03:45,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 240 flow [2023-11-19 08:03:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:03:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2023-11-19 08:03:45,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-19 08:03:45,912 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2023-11-19 08:03:45,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2023-11-19 08:03:45,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:45,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2023-11-19 08:03:45,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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) [2023-11-19 08:03:45,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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) [2023-11-19 08:03:45,919 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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) [2023-11-19 08:03:45,919 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 94 flow. Second operand 4 states and 458 transitions. [2023-11-19 08:03:45,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 240 flow [2023-11-19 08:03:45,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:45,922 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 117 flow [2023-11-19 08:03:45,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-11-19 08:03:45,923 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-11-19 08:03:45,924 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 117 flow [2023-11-19 08:03:45,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2023-11-19 08:03:45,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:45,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:45,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:03:45,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 08:03:45,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1679508053, now seen corresponding path program 1 times [2023-11-19 08:03:45,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:45,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522299308] [2023-11-19 08:03:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:46,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:46,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522299308] [2023-11-19 08:03:46,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522299308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:46,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:46,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:46,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086735899] [2023-11-19 08:03:46,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:46,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:46,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:46,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:46,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 229 [2023-11-19 08:03:46,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 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) [2023-11-19 08:03:46,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:46,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 229 [2023-11-19 08:03:46,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:46,265 INFO L124 PetriNetUnfolderBase]: 194/349 cut-off events. [2023-11-19 08:03:46,265 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2023-11-19 08:03:46,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 349 events. 194/349 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1399 event pairs, 65 based on Foata normal form. 14/358 useless extension candidates. Maximal degree in co-relation 964. Up to 145 conditions per place. [2023-11-19 08:03:46,268 INFO L140 encePairwiseOnDemand]: 221/229 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2023-11-19 08:03:46,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 201 flow [2023-11-19 08:03:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:46,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:03:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 550 transitions. [2023-11-19 08:03:46,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48034934497816595 [2023-11-19 08:03:46,271 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 550 transitions. [2023-11-19 08:03:46,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 550 transitions. [2023-11-19 08:03:46,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:46,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 550 transitions. [2023-11-19 08:03:46,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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) [2023-11-19 08:03:46,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 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) [2023-11-19 08:03:46,279 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 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) [2023-11-19 08:03:46,279 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 117 flow. Second operand 5 states and 550 transitions. [2023-11-19 08:03:46,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 201 flow [2023-11-19 08:03:46,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 40 transitions, 177 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 08:03:46,283 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-19 08:03:46,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-19 08:03:46,286 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -6 predicate places. [2023-11-19 08:03:46,286 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-19 08:03:46,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 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) [2023-11-19 08:03:46,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-19 08:03:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-19 08:03:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-19 08:03:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-19 08:03:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-19 08:03:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-19 08:03:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-19 08:03:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-19 08:03:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-19 08:03:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-19 08:03:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-19 08:03:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-19 08:03:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-19 08:03:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-19 08:03:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-19 08:03:46,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:46,299 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:03:46,306 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:03:46,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:03:46,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:46 BasicIcfg [2023-11-19 08:03:46,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:03:46,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:03:46,321 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:03:46,322 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:03:46,323 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:38" (3/4) ... [2023-11-19 08:03:46,325 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:03:46,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:03:46,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:03:46,328 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 08:03:46,337 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-19 08:03:46,337 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 08:03:46,338 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 08:03:46,338 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:03:46,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:03:46,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:03:46,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:03:46,446 INFO L158 Benchmark]: Toolchain (without parser) took 9223.45ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 145.9MB in the beginning and 134.8MB in the end (delta: 11.1MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,447 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 102.2MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:46,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.82ms. Allocated memory is still 178.3MB. Free memory was 145.7MB in the beginning and 127.8MB in the end (delta: 17.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.28ms. Allocated memory is still 178.3MB. Free memory was 127.8MB in the beginning and 124.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,448 INFO L158 Benchmark]: Boogie Preprocessor took 43.11ms. Allocated memory is still 178.3MB. Free memory was 124.9MB in the beginning and 122.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,448 INFO L158 Benchmark]: RCFGBuilder took 938.04ms. Allocated memory is still 178.3MB. Free memory was 122.8MB in the beginning and 117.8MB in the end (delta: 5.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,448 INFO L158 Benchmark]: TraceAbstraction took 7356.26ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 117.8MB in the beginning and 140.0MB in the end (delta: -22.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,449 INFO L158 Benchmark]: Witness Printer took 129.37ms. Allocated memory is still 213.9MB. Free memory was 140.0MB in the beginning and 134.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:03:46,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 102.2MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.82ms. Allocated memory is still 178.3MB. Free memory was 145.7MB in the beginning and 127.8MB in the end (delta: 17.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.28ms. Allocated memory is still 178.3MB. Free memory was 127.8MB in the beginning and 124.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.11ms. Allocated memory is still 178.3MB. Free memory was 124.9MB in the beginning and 122.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 938.04ms. Allocated memory is still 178.3MB. Free memory was 122.8MB in the beginning and 117.8MB in the end (delta: 5.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7356.26ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 117.8MB in the beginning and 140.0MB in the end (delta: -22.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 129.37ms. Allocated memory is still 213.9MB. Free memory was 140.0MB in the beginning and 134.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 128 PlacesBefore, 39 PlacesAfterwards, 121 TransitionsBefore, 30 TransitionsAfterwards, 3082 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 8895 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4602, independent: 4361, independent conditional: 0, independent unconditional: 4361, dependent: 241, dependent conditional: 0, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1670, independent: 1626, independent conditional: 0, independent unconditional: 1626, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4602, independent: 2735, independent conditional: 0, independent unconditional: 2735, dependent: 197, dependent conditional: 0, dependent unconditional: 197, unknown: 1670, unknown conditional: 0, unknown unconditional: 1670] , Statistics on independence cache: Total cache size (in pairs): 196, Positive cache size: 173, Positive conditional cache size: 0, Positive unconditional cache size: 173, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: 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, 157 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: 7.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 5 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=3, 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, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 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! [2023-11-19 08:03:46,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792f7224-1218-48bb-97a2-4662d884bb8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE