./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl --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 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:46,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:46,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:30:46,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:46,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:46,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:46,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:46,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:46,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:46,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:46,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:46,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:46,283 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:46,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:46,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:30:46,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:46,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:46,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:46,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:46,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:30:46,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:46,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:30:46,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:30:46,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:30:46,290 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:46,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:30:46,290 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:46,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:46,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:46,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:46,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:46,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:46,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:46,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:30:46,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:46,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:30:46,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:46,296 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:30:46,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:46,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:46,297 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:46,298 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_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b [2023-11-12 02:30:46,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:46,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:46,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:46,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:46,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:46,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2023-11-12 02:30:49,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:50,086 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:50,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2023-11-12 02:30:50,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/data/b232debfb/92bc6d43de884fb2a17f5aacd2d91bd1/FLAG92d8d1642 [2023-11-12 02:30:50,122 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/data/b232debfb/92bc6d43de884fb2a17f5aacd2d91bd1 [2023-11-12 02:30:50,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:50,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:50,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:50,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:50,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:50,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:50,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6160e697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50, skipping insertion in model container [2023-11-12 02:30:50,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:50,211 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:50,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:50,748 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:50,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:50,881 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:30:50,882 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:30:50,890 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:50,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50 WrapperNode [2023-11-12 02:30:50,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:50,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:50,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:50,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:50,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:50,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:50,993 INFO L138 Inliner]: procedures = 177, calls = 89, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 202 [2023-11-12 02:30:50,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:51,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:51,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:51,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:51,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:51,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:51,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:51,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:51,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (1/1) ... [2023-11-12 02:30:51,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:51,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:51,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:51,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:30:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:30:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:30:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:30:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:30:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:30:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:30:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:30:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:30:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:30:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:30:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:30:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:30:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:30:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:30:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:30:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:51,205 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:30:51,462 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:51,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:52,143 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:52,541 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:52,541 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:30:52,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:52 BoogieIcfgContainer [2023-11-12 02:30:52,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:52,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:52,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:52,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:52,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:30:50" (1/3) ... [2023-11-12 02:30:52,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369d5dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:52, skipping insertion in model container [2023-11-12 02:30:52,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:50" (2/3) ... [2023-11-12 02:30:52,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369d5dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:52, skipping insertion in model container [2023-11-12 02:30:52,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:52" (3/3) ... [2023-11-12 02:30:52,560 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.opt.i [2023-11-12 02:30:52,570 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:30:52,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:52,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 02:30:52,579 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:30:52,675 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:30:52,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 160 transitions, 336 flow [2023-11-12 02:30:52,836 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-12 02:30:52,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:52,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 3/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-11-12 02:30:52,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 160 transitions, 336 flow [2023-11-12 02:30:52,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 156 transitions, 324 flow [2023-11-12 02:30:52,853 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:30:52,872 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 156 transitions, 324 flow [2023-11-12 02:30:52,876 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 156 transitions, 324 flow [2023-11-12 02:30:52,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 156 transitions, 324 flow [2023-11-12 02:30:52,949 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-12 02:30:52,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:52,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 3/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-11-12 02:30:52,955 INFO L119 LiptonReduction]: Number of co-enabled transitions 4076 [2023-11-12 02:31:03,561 INFO L134 LiptonReduction]: Checked pairs total: 14714 [2023-11-12 02:31:03,562 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-11-12 02:31:03,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:03,586 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;@6cb26661, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:03,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 02:31:03,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:31:03,593 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:31:03,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:31:03,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:03,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:31:03,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:31:03,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1003550490, now seen corresponding path program 1 times [2023-11-12 02:31:03,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:03,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419456020] [2023-11-12 02:31:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:03,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:04,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:04,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419456020] [2023-11-12 02:31:04,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419456020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:04,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:04,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:31:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605022908] [2023-11-12 02:31:04,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:04,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:04,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:04,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:04,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 300 [2023-11-12 02:31:04,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2023-11-12 02:31:04,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:04,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 300 [2023-11-12 02:31:04,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:07,082 INFO L124 PetriNetUnfolderBase]: 9227/12966 cut-off events. [2023-11-12 02:31:07,082 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-11-12 02:31:07,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26206 conditions, 12966 events. 9227/12966 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 69067 event pairs, 4352 based on Foata normal form. 81/9256 useless extension candidates. Maximal degree in co-relation 26194. Up to 12517 conditions per place. [2023-11-12 02:31:07,200 INFO L140 encePairwiseOnDemand]: 285/300 looper letters, 45 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-11-12 02:31:07,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 223 flow [2023-11-12 02:31:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:31:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2023-11-12 02:31:07,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044444444444445 [2023-11-12 02:31:07,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2023-11-12 02:31:07,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2023-11-12 02:31:07,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:07,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2023-11-12 02:31:07,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2023-11-12 02:31:07,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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) [2023-11-12 02:31:07,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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) [2023-11-12 02:31:07,234 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 80 flow. Second operand 3 states and 454 transitions. [2023-11-12 02:31:07,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 223 flow [2023-11-12 02:31:07,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:31:07,313 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 123 flow [2023-11-12 02:31:07,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-11-12 02:31:07,319 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-11-12 02:31:07,319 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 123 flow [2023-11-12 02:31:07,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2023-11-12 02:31:07,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:07,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:07,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:31:07,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:31:07,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash 364785670, now seen corresponding path program 1 times [2023-11-12 02:31:07,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:07,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911877879] [2023-11-12 02:31:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:07,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:07,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:07,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911877879] [2023-11-12 02:31:07,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911877879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:07,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:07,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:07,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267116812] [2023-11-12 02:31:07,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:07,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:07,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:07,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 300 [2023-11-12 02:31:07,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-12 02:31:07,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:07,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 300 [2023-11-12 02:31:07,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:09,637 INFO L124 PetriNetUnfolderBase]: 5191/7356 cut-off events. [2023-11-12 02:31:09,637 INFO L125 PetriNetUnfolderBase]: For 762/762 co-relation queries the response was YES. [2023-11-12 02:31:09,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18198 conditions, 7356 events. 5191/7356 cut-off events. For 762/762 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 36328 event pairs, 1900 based on Foata normal form. 0/6067 useless extension candidates. Maximal degree in co-relation 18187. Up to 6906 conditions per place. [2023-11-12 02:31:09,698 INFO L140 encePairwiseOnDemand]: 291/300 looper letters, 41 selfloop transitions, 5 changer transitions 0/47 dead transitions. [2023-11-12 02:31:09,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 233 flow [2023-11-12 02:31:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:31:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:31:09,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 574 transitions. [2023-11-12 02:31:09,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47833333333333333 [2023-11-12 02:31:09,706 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 574 transitions. [2023-11-12 02:31:09,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 574 transitions. [2023-11-12 02:31:09,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:09,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 574 transitions. [2023-11-12 02:31:09,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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) [2023-11-12 02:31:09,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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) [2023-11-12 02:31:09,722 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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) [2023-11-12 02:31:09,723 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 123 flow. Second operand 4 states and 574 transitions. [2023-11-12 02:31:09,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 233 flow [2023-11-12 02:31:09,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 47 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:31:09,735 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 112 flow [2023-11-12 02:31:09,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2023-11-12 02:31:09,736 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2023-11-12 02:31:09,737 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 112 flow [2023-11-12 02:31:09,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-12 02:31:09,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:09,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:09,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:31:09,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:31:09,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:09,743 INFO L85 PathProgramCache]: Analyzing trace with hash 364785671, now seen corresponding path program 1 times [2023-11-12 02:31:09,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:09,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411973119] [2023-11-12 02:31:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:09,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:09,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:09,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411973119] [2023-11-12 02:31:09,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411973119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:09,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451072469] [2023-11-12 02:31:09,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:09,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:31:09,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:09,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:31:09,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:31:09,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 300 [2023-11-12 02:31:09,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-12 02:31:09,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:09,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 300 [2023-11-12 02:31:09,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:10,780 INFO L124 PetriNetUnfolderBase]: 1735/2682 cut-off events. [2023-11-12 02:31:10,780 INFO L125 PetriNetUnfolderBase]: For 560/560 co-relation queries the response was YES. [2023-11-12 02:31:10,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6673 conditions, 2682 events. 1735/2682 cut-off events. For 560/560 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 12543 event pairs, 563 based on Foata normal form. 108/2513 useless extension candidates. Maximal degree in co-relation 6661. Up to 1693 conditions per place. [2023-11-12 02:31:10,800 INFO L140 encePairwiseOnDemand]: 290/300 looper letters, 53 selfloop transitions, 9 changer transitions 0/63 dead transitions. [2023-11-12 02:31:10,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 63 transitions, 314 flow [2023-11-12 02:31:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:31:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:31:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 591 transitions. [2023-11-12 02:31:10,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925 [2023-11-12 02:31:10,805 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 591 transitions. [2023-11-12 02:31:10,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 591 transitions. [2023-11-12 02:31:10,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:10,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 591 transitions. [2023-11-12 02:31:10,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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) [2023-11-12 02:31:10,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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) [2023-11-12 02:31:10,813 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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) [2023-11-12 02:31:10,813 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 112 flow. Second operand 4 states and 591 transitions. [2023-11-12 02:31:10,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 63 transitions, 314 flow [2023-11-12 02:31:10,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:31:10,818 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 166 flow [2023-11-12 02:31:10,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-11-12 02:31:10,820 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-11-12 02:31:10,820 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 166 flow [2023-11-12 02:31:10,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2023-11-12 02:31:10,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:10,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:10,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:31:10,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:31:10,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1329173817, now seen corresponding path program 1 times [2023-11-12 02:31:10,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:10,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916426287] [2023-11-12 02:31:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:10,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:11,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:11,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916426287] [2023-11-12 02:31:11,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916426287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:11,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:11,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:11,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156087962] [2023-11-12 02:31:11,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:11,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:11,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:11,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:11,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:11,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 300 [2023-11-12 02:31:11,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-11-12 02:31:11,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:11,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 300 [2023-11-12 02:31:11,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:11,638 INFO L124 PetriNetUnfolderBase]: 919/1434 cut-off events. [2023-11-12 02:31:11,638 INFO L125 PetriNetUnfolderBase]: For 930/930 co-relation queries the response was YES. [2023-11-12 02:31:11,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4197 conditions, 1434 events. 919/1434 cut-off events. For 930/930 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6022 event pairs, 292 based on Foata normal form. 54/1457 useless extension candidates. Maximal degree in co-relation 4184. Up to 540 conditions per place. [2023-11-12 02:31:11,648 INFO L140 encePairwiseOnDemand]: 290/300 looper letters, 59 selfloop transitions, 13 changer transitions 4/77 dead transitions. [2023-11-12 02:31:11,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 77 transitions, 426 flow [2023-11-12 02:31:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:31:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:31:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 736 transitions. [2023-11-12 02:31:11,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49066666666666664 [2023-11-12 02:31:11,653 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 736 transitions. [2023-11-12 02:31:11,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 736 transitions. [2023-11-12 02:31:11,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:11,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 736 transitions. [2023-11-12 02:31:11,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-11-12 02:31:11,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 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) [2023-11-12 02:31:11,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 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) [2023-11-12 02:31:11,664 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 166 flow. Second operand 5 states and 736 transitions. [2023-11-12 02:31:11,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 77 transitions, 426 flow [2023-11-12 02:31:11,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 77 transitions, 408 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-12 02:31:11,675 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 192 flow [2023-11-12 02:31:11,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-11-12 02:31:11,678 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2023-11-12 02:31:11,678 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 192 flow [2023-11-12 02:31:11,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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) [2023-11-12 02:31:11,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:31:11,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:11,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:31:11,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:31:11,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash -276300674, now seen corresponding path program 1 times [2023-11-12 02:31:11,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:11,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394478683] [2023-11-12 02:31:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:11,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:11,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:11,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394478683] [2023-11-12 02:31:11,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394478683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:11,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:11,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:31:11,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222069743] [2023-11-12 02:31:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:11,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:31:11,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:11,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:31:11,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:11,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 300 [2023-11-12 02:31:11,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 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) [2023-11-12 02:31:11,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:31:11,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 300 [2023-11-12 02:31:11,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:31:12,464 INFO L124 PetriNetUnfolderBase]: 852/1294 cut-off events. [2023-11-12 02:31:12,465 INFO L125 PetriNetUnfolderBase]: For 1084/1084 co-relation queries the response was YES. [2023-11-12 02:31:12,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3916 conditions, 1294 events. 852/1294 cut-off events. For 1084/1084 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5447 event pairs, 272 based on Foata normal form. 16/1299 useless extension candidates. Maximal degree in co-relation 3902. Up to 540 conditions per place. [2023-11-12 02:31:12,471 INFO L140 encePairwiseOnDemand]: 290/300 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2023-11-12 02:31:12,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 65 transitions, 358 flow [2023-11-12 02:31:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:31:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2023-11-12 02:31:12,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475 [2023-11-12 02:31:12,476 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 855 transitions. [2023-11-12 02:31:12,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 855 transitions. [2023-11-12 02:31:12,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:31:12,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 855 transitions. [2023-11-12 02:31:12,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 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) [2023-11-12 02:31:12,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 300.0) internal successors, (2100), 7 states have internal predecessors, (2100), 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) [2023-11-12 02:31:12,486 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 300.0) internal successors, (2100), 7 states have internal predecessors, (2100), 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) [2023-11-12 02:31:12,487 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 192 flow. Second operand 6 states and 855 transitions. [2023-11-12 02:31:12,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 65 transitions, 358 flow [2023-11-12 02:31:12,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 65 transitions, 303 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-12 02:31:12,499 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-11-12 02:31:12,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-11-12 02:31:12,500 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2023-11-12 02:31:12,500 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-11-12 02:31:12,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 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) [2023-11-12 02:31:12,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 02:31:12,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 02:31:12,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 02:31:12,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 02:31:12,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 02:31:12,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 02:31:12,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 02:31:12,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 02:31:12,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 02:31:12,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 02:31:12,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 02:31:12,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 02:31:12,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 02:31:12,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 02:31:12,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 02:31:12,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 02:31:12,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 02:31:12,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 02:31:12,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 02:31:12,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 02:31:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:31:12,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:31:12,514 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:31:12,515 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:31:12,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:31:12 BasicIcfg [2023-11-12 02:31:12,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:31:12,520 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:31:12,520 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:31:12,520 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:31:12,521 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:52" (3/4) ... [2023-11-12 02:31:12,522 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:31:12,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:31:12,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:31:12,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 02:31:12,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 02:31:12,532 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2023-11-12 02:31:12,533 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 02:31:12,533 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:31:12,534 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:31:12,625 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:31:12,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:31:12,626 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:31:12,627 INFO L158 Benchmark]: Toolchain (without parser) took 22498.97ms. Allocated memory was 121.6MB in the beginning and 734.0MB in the end (delta: 612.4MB). Free memory was 76.2MB in the beginning and 293.6MB in the end (delta: -217.4MB). Peak memory consumption was 396.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,627 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 93.4MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:12,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.97ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 49.9MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.80ms. Allocated memory is still 121.6MB. Free memory was 49.9MB in the beginning and 91.5MB in the end (delta: -41.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,629 INFO L158 Benchmark]: Boogie Preprocessor took 88.07ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 91.5MB in the beginning and 138.0MB in the end (delta: -46.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,629 INFO L158 Benchmark]: RCFGBuilder took 1455.32ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 97.7MB in the end (delta: 40.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,630 INFO L158 Benchmark]: TraceAbstraction took 19970.64ms. Allocated memory was 167.8MB in the beginning and 734.0MB in the end (delta: 566.2MB). Free memory was 96.6MB in the beginning and 298.9MB in the end (delta: -202.3MB). Peak memory consumption was 364.0MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,630 INFO L158 Benchmark]: Witness Printer took 106.57ms. Allocated memory is still 734.0MB. Free memory was 298.9MB in the beginning and 293.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:31:12,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 93.4MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.97ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 49.9MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.80ms. Allocated memory is still 121.6MB. Free memory was 49.9MB in the beginning and 91.5MB in the end (delta: -41.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.07ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 91.5MB in the beginning and 138.0MB in the end (delta: -46.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1455.32ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 97.7MB in the end (delta: 40.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 19970.64ms. Allocated memory was 167.8MB in the beginning and 734.0MB in the end (delta: 566.2MB). Free memory was 96.6MB in the beginning and 298.9MB in the end (delta: -202.3MB). Peak memory consumption was 364.0MB. Max. memory is 16.1GB. * Witness Printer took 106.57ms. Allocated memory is still 734.0MB. Free memory was 298.9MB in the beginning and 293.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 166 PlacesBefore, 46 PlacesAfterwards, 156 TransitionsBefore, 34 TransitionsAfterwards, 4076 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 140 TotalNumberOfCompositions, 14714 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5043, independent: 4673, independent conditional: 0, independent unconditional: 4673, dependent: 370, dependent conditional: 0, dependent unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2226, independent: 2168, independent conditional: 0, independent unconditional: 2168, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5043, independent: 2505, independent conditional: 0, independent unconditional: 2505, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 2226, unknown conditional: 0, unknown unconditional: 2226] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 199 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 5 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:31:12,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_621e05da-c005-438b-bff5-887e8268b1b4/bin/uautomizer-verify-uTZkv6EMXl/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