./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme --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 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:54:57,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:54:57,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:54:57,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:54:57,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:54:57,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:54:57,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:54:57,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:54:57,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:54:57,599 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:54:57,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:54:57,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:54:57,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:54:57,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:54:57,604 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:54:57,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:54:57,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:54:57,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:54:57,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:54:57,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:54:57,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:54:57,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:54:57,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:54:57,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:54:57,611 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:54:57,611 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:54:57,612 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:54:57,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:54:57,613 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:54:57,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:54:57,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:54:57,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:54:57,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:54:57,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:57,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:54:57,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:54:57,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:54:57,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:54:57,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:54:57,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:54:57,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:54:57,619 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:54:57,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:54:57,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:54:57,620 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_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 [2023-11-26 11:54:57,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:54:57,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:54:57,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:54:57,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:54:57,958 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:54:57,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/mix023_tso.i [2023-11-26 11:55:01,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:55:01,628 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:55:01,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/sv-benchmarks/c/pthread-wmm/mix023_tso.i [2023-11-26 11:55:01,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/data/be145c774/92635e4779834a12aabcaec0884128d1/FLAGbdb1373df [2023-11-26 11:55:01,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/data/be145c774/92635e4779834a12aabcaec0884128d1 [2023-11-26 11:55:01,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:55:01,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:55:01,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:01,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:55:01,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:55:01,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:01" (1/1) ... [2023-11-26 11:55:01,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191b6415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:01, skipping insertion in model container [2023-11-26 11:55:01,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:01" (1/1) ... [2023-11-26 11:55:01,786 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:55:02,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:02,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:55:02,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:02,670 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:02,671 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:55:02,679 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:55:02,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02 WrapperNode [2023-11-26 11:55:02,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:02,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:02,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:55:02,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:55:02,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,778 INFO L138 Inliner]: procedures = 177, calls = 73, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 294 [2023-11-26 11:55:02,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:02,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:55:02,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:55:02,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:55:02,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,831 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2023-11-26 11:55:02,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:55:02,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:55:02,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:55:02,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:55:02,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (1/1) ... [2023-11-26 11:55:02,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:02,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:55:02,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:55:02,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:55:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:55:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:55:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:55:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:55:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:55:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:55:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:55:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:55:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:55:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 11:55:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 11:55:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 11:55:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 11:55:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 11:55:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 11:55:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-26 11:55:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-26 11:55:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:55:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:55:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:55:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:55:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:55:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:55:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:55:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:55:03,003 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:55:03,212 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:55:03,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:55:03,834 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:55:04,240 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:55:04,240 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:55:04,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:04 BoogieIcfgContainer [2023-11-26 11:55:04,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:55:04,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:55:04,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:55:04,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:55:04,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:55:01" (1/3) ... [2023-11-26 11:55:04,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5fecc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:04, skipping insertion in model container [2023-11-26 11:55:04,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:02" (2/3) ... [2023-11-26 11:55:04,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5fecc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:04, skipping insertion in model container [2023-11-26 11:55:04,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:04" (3/3) ... [2023-11-26 11:55:04,254 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_tso.i [2023-11-26 11:55:04,264 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:55:04,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:55:04,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 11:55:04,277 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:55:04,371 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:55:04,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 120 flow [2023-11-26 11:55:04,488 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2023-11-26 11:55:04,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:55:04,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 11:55:04,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 52 transitions, 120 flow [2023-11-26 11:55:04,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 48 transitions, 108 flow [2023-11-26 11:55:04,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:55:04,535 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;@6324bb8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:55:04,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-26 11:55:04,548 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:55:04,549 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-26 11:55:04,549 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:55:04,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:55:04,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:55:04,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:55:04,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1548657168, now seen corresponding path program 1 times [2023-11-26 11:55:04,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:04,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032830243] [2023-11-26 11:55:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:04,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:55:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:55:05,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:55:05,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032830243] [2023-11-26 11:55:05,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032830243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:55:05,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:55:05,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:55:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811024385] [2023-11-26 11:55:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:55:05,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:55:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:55:05,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:55:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:55:05,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2023-11-26 11:55:05,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-26 11:55:05,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:55:05,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2023-11-26 11:55:05,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:55:14,677 INFO L124 PetriNetUnfolderBase]: 34243/45609 cut-off events. [2023-11-26 11:55:14,677 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2023-11-26 11:55:14,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91589 conditions, 45609 events. 34243/45609 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 1998. Compared 284244 event pairs, 12771 based on Foata normal form. 0/34906 useless extension candidates. Maximal degree in co-relation 91577. Up to 44073 conditions per place. [2023-11-26 11:55:15,115 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 55 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2023-11-26 11:55:15,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 283 flow [2023-11-26 11:55:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:55:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:55:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2023-11-26 11:55:15,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7243589743589743 [2023-11-26 11:55:15,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 113 transitions. [2023-11-26 11:55:15,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 113 transitions. [2023-11-26 11:55:15,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:55:15,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 113 transitions. [2023-11-26 11:55:15,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2023-11-26 11:55:15,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-11-26 11:55:15,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-11-26 11:55:15,145 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 108 flow. Second operand 3 states and 113 transitions. [2023-11-26 11:55:15,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 283 flow [2023-11-26 11:55:15,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:55:15,161 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 151 flow [2023-11-26 11:55:15,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2023-11-26 11:55:15,167 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-11-26 11:55:15,167 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 151 flow [2023-11-26 11:55:15,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-26 11:55:15,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:55:15,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:55:15,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:55:15,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:55:15,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:15,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1910773338, now seen corresponding path program 1 times [2023-11-26 11:55:15,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:15,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283399073] [2023-11-26 11:55:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:15,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:55:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:55:15,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:55:15,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283399073] [2023-11-26 11:55:15,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283399073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:55:15,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:55:15,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:55:15,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286354308] [2023-11-26 11:55:15,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:55:15,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:55:15,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:55:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:55:15,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:55:15,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2023-11-26 11:55:15,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2023-11-26 11:55:15,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:55:15,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2023-11-26 11:55:15,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:55:20,341 INFO L124 PetriNetUnfolderBase]: 20213/27079 cut-off events. [2023-11-26 11:55:20,342 INFO L125 PetriNetUnfolderBase]: For 1927/1927 co-relation queries the response was YES. [2023-11-26 11:55:20,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63096 conditions, 27079 events. 20213/27079 cut-off events. For 1927/1927 co-relation queries the response was YES. Maximal size of possible extension queue 1232. Compared 164394 event pairs, 6381 based on Foata normal form. 0/23312 useless extension candidates. Maximal degree in co-relation 63085. Up to 25542 conditions per place. [2023-11-26 11:55:20,500 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 51 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2023-11-26 11:55:20,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 67 transitions, 291 flow [2023-11-26 11:55:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:55:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:55:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2023-11-26 11:55:20,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2023-11-26 11:55:20,510 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 120 transitions. [2023-11-26 11:55:20,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 120 transitions. [2023-11-26 11:55:20,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:55:20,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 120 transitions. [2023-11-26 11:55:20,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2023-11-26 11:55:20,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 52.0) internal successors, (260), 5 states have internal predecessors, (260), 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) [2023-11-26 11:55:20,516 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 52.0) internal successors, (260), 5 states have internal predecessors, (260), 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) [2023-11-26 11:55:20,517 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 151 flow. Second operand 4 states and 120 transitions. [2023-11-26 11:55:20,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 67 transitions, 291 flow [2023-11-26 11:55:20,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:55:20,527 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 140 flow [2023-11-26 11:55:20,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2023-11-26 11:55:20,529 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2023-11-26 11:55:20,529 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 140 flow [2023-11-26 11:55:20,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2023-11-26 11:55:20,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:55:20,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:55:20,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:55:20,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:55:20,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1910773337, now seen corresponding path program 1 times [2023-11-26 11:55:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:20,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075738044] [2023-11-26 11:55:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:20,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:55:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:55:20,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:55:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075738044] [2023-11-26 11:55:20,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075738044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:55:20,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:55:20,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:55:20,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745104981] [2023-11-26 11:55:20,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:55:20,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:55:20,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:55:20,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:55:20,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:55:20,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2023-11-26 11:55:20,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2023-11-26 11:55:20,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:55:20,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2023-11-26 11:55:20,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:55:23,926 INFO L124 PetriNetUnfolderBase]: 14251/19305 cut-off events. [2023-11-26 11:55:23,926 INFO L125 PetriNetUnfolderBase]: For 2960/2960 co-relation queries the response was YES. [2023-11-26 11:55:23,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44081 conditions, 19305 events. 14251/19305 cut-off events. For 2960/2960 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 114399 event pairs, 2363 based on Foata normal form. 0/17890 useless extension candidates. Maximal degree in co-relation 44069. Up to 13121 conditions per place. [2023-11-26 11:55:24,055 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 72 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2023-11-26 11:55:24,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 92 transitions, 408 flow [2023-11-26 11:55:24,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:55:24,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:55:24,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2023-11-26 11:55:24,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6971153846153846 [2023-11-26 11:55:24,058 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 145 transitions. [2023-11-26 11:55:24,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 145 transitions. [2023-11-26 11:55:24,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:55:24,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 145 transitions. [2023-11-26 11:55:24,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2023-11-26 11:55:24,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 52.0) internal successors, (260), 5 states have internal predecessors, (260), 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) [2023-11-26 11:55:24,062 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 52.0) internal successors, (260), 5 states have internal predecessors, (260), 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) [2023-11-26 11:55:24,062 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 140 flow. Second operand 4 states and 145 transitions. [2023-11-26 11:55:24,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 92 transitions, 408 flow [2023-11-26 11:55:24,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 92 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:55:24,068 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 192 flow [2023-11-26 11:55:24,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2023-11-26 11:55:24,069 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-11-26 11:55:24,070 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 192 flow [2023-11-26 11:55:24,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2023-11-26 11:55:24,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:55:24,070 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, 1] [2023-11-26 11:55:24,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:55:24,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:55:24,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:24,072 INFO L85 PathProgramCache]: Analyzing trace with hash 106599799, now seen corresponding path program 1 times [2023-11-26 11:55:24,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:24,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776485426] [2023-11-26 11:55:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:55:24,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:55:24,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:55:24,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776485426] [2023-11-26 11:55:24,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776485426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:55:24,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:55:24,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:55:24,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263476104] [2023-11-26 11:55:24,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:55:24,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:55:24,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:55:24,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:55:24,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:55:24,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2023-11-26 11:55:24,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-26 11:55:24,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:55:24,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2023-11-26 11:55:24,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:55:27,139 INFO L124 PetriNetUnfolderBase]: 11347/15369 cut-off events. [2023-11-26 11:55:27,139 INFO L125 PetriNetUnfolderBase]: For 7185/7185 co-relation queries the response was YES. [2023-11-26 11:55:27,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39264 conditions, 15369 events. 11347/15369 cut-off events. For 7185/7185 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 90154 event pairs, 1119 based on Foata normal form. 0/15130 useless extension candidates. Maximal degree in co-relation 39251. Up to 5424 conditions per place. [2023-11-26 11:55:27,251 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 87 selfloop transitions, 13 changer transitions 4/115 dead transitions. [2023-11-26 11:55:27,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 115 transitions, 554 flow [2023-11-26 11:55:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:55:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:55:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 183 transitions. [2023-11-26 11:55:27,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7038461538461539 [2023-11-26 11:55:27,258 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 183 transitions. [2023-11-26 11:55:27,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 183 transitions. [2023-11-26 11:55:27,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:55:27,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 183 transitions. [2023-11-26 11:55:27,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 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) [2023-11-26 11:55:27,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 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) [2023-11-26 11:55:27,265 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 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) [2023-11-26 11:55:27,265 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 192 flow. Second operand 5 states and 183 transitions. [2023-11-26 11:55:27,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 115 transitions, 554 flow [2023-11-26 11:55:27,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 115 transitions, 536 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-26 11:55:27,283 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 216 flow [2023-11-26 11:55:27,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=216, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2023-11-26 11:55:27,286 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2023-11-26 11:55:27,286 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 216 flow [2023-11-26 11:55:27,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-26 11:55:27,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:55:27,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:55:27,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:55:27,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-26 11:55:27,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1399777870, now seen corresponding path program 1 times [2023-11-26 11:55:27,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:27,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048513990] [2023-11-26 11:55:27,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:27,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:55:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:55:27,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:55:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048513990] [2023-11-26 11:55:27,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048513990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:55:27,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:55:27,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:55:27,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984340360] [2023-11-26 11:55:27,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:55:27,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:55:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:55:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:55:27,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:55:27,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2023-11-26 11:55:27,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2023-11-26 11:55:27,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:55:27,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2023-11-26 11:55:27,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:55:30,612 INFO L124 PetriNetUnfolderBase]: 10531/14265 cut-off events. [2023-11-26 11:55:30,612 INFO L125 PetriNetUnfolderBase]: For 11889/11889 co-relation queries the response was YES. [2023-11-26 11:55:30,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37375 conditions, 14265 events. 10531/14265 cut-off events. For 11889/11889 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 85347 event pairs, 975 based on Foata normal form. 192/14410 useless extension candidates. Maximal degree in co-relation 37361. Up to 5424 conditions per place. [2023-11-26 11:55:30,670 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2023-11-26 11:55:30,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 107 transitions, 506 flow [2023-11-26 11:55:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:55:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:55:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 190 transitions. [2023-11-26 11:55:30,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6089743589743589 [2023-11-26 11:55:30,675 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 190 transitions. [2023-11-26 11:55:30,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 190 transitions. [2023-11-26 11:55:30,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:55:30,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 190 transitions. [2023-11-26 11:55:30,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 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) [2023-11-26 11:55:30,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 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) [2023-11-26 11:55:30,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 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) [2023-11-26 11:55:30,686 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 216 flow. Second operand 6 states and 190 transitions. [2023-11-26 11:55:30,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 107 transitions, 506 flow [2023-11-26 11:55:31,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 107 transitions, 451 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-26 11:55:31,151 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2023-11-26 11:55:31,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2023-11-26 11:55:31,152 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2023-11-26 11:55:31,152 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2023-11-26 11:55:31,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2023-11-26 11:55:31,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-26 11:55:31,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-26 11:55:31,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-26 11:55:31,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-26 11:55:31,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-26 11:55:31,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-26 11:55:31,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-26 11:55:31,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-26 11:55:31,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-26 11:55:31,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-26 11:55:31,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-26 11:55:31,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-26 11:55:31,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-26 11:55:31,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-26 11:55:31,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-26 11:55:31,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-26 11:55:31,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-26 11:55:31,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-26 11:55:31,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-26 11:55:31,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-26 11:55:31,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:55:31,163 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 11:55:31,169 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:55:31,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:55:31,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:55:31 BasicIcfg [2023-11-26 11:55:31,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:55:31,178 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:55:31,178 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:55:31,179 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:55:31,179 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:04" (3/4) ... [2023-11-26 11:55:31,181 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:55:31,184 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 11:55:31,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 11:55:31,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-26 11:55:31,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-26 11:55:31,193 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 141 nodes and edges [2023-11-26 11:55:31,194 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-26 11:55:31,194 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-26 11:55:31,195 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 11:55:31,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:55:31,306 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:55:31,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:55:31,307 INFO L158 Benchmark]: Toolchain (without parser) took 29628.03ms. Allocated memory was 146.8MB in the beginning and 8.6GB in the end (delta: 8.5GB). Free memory was 100.4MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 863.1MB. Max. memory is 16.1GB. [2023-11-26 11:55:31,307 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 113.2MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:55:31,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 999.59ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 70.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-26 11:55:31,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.63ms. Allocated memory is still 146.8MB. Free memory was 70.7MB in the beginning and 112.7MB in the end (delta: -42.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-11-26 11:55:31,309 INFO L158 Benchmark]: Boogie Preprocessor took 118.28ms. Allocated memory is still 146.8MB. Free memory was 112.7MB in the beginning and 107.3MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:55:31,309 INFO L158 Benchmark]: RCFGBuilder took 1342.95ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 107.0MB in the beginning and 155.6MB in the end (delta: -48.6MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-11-26 11:55:31,310 INFO L158 Benchmark]: TraceAbstraction took 26932.89ms. Allocated memory was 195.0MB in the beginning and 8.6GB in the end (delta: 8.4GB). Free memory was 154.6MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-11-26 11:55:31,310 INFO L158 Benchmark]: Witness Printer took 128.15ms. Allocated memory is still 8.6GB. Free memory was 7.7GB in the beginning and 7.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:55:31,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.60ms. Allocated memory is still 113.2MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 999.59ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 70.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.63ms. Allocated memory is still 146.8MB. Free memory was 70.7MB in the beginning and 112.7MB in the end (delta: -42.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.28ms. Allocated memory is still 146.8MB. Free memory was 112.7MB in the beginning and 107.3MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1342.95ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 107.0MB in the beginning and 155.6MB in the end (delta: -48.6MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. * TraceAbstraction took 26932.89ms. Allocated memory was 195.0MB in the beginning and 8.6GB in the end (delta: 8.4GB). Free memory was 154.6MB in the beginning and 7.7GB in the end (delta: -7.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 128.15ms. Allocated memory is still 8.6GB. Free memory was 7.7GB in the beginning and 7.7GB 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: - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 905]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 905]: 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, 95 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: 26.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 343 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 333 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 516 IncrementalHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 0 mSDtfsCounter, 516 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 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! [2023-11-26 11:55:31,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46c348a3-d1ce-48a2-8dd9-61120318dc05/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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