./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:05:02,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:05:02,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:05:02,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:05:02,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:05:02,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:05:02,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:05:02,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:05:02,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:05:02,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:05:02,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:05:02,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:05:02,804 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:05:02,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:05:02,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:05:02,807 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:05:02,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:05:02,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:05:02,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:05:02,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:05:02,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:05:02,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:05:02,812 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:05:02,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:05:02,813 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:05:02,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:05:02,814 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:05:02,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:05:02,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:05:02,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:05:02,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:05:02,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:05:02,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:05:02,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:05:02,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:05:02,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:05:02,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:05:02,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:05:02,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:05:02,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:05:02,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:05:02,820 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_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 [2023-11-21 21:05:03,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:05:03,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:05:03,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:05:03,183 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:05:03,184 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:05:03,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-21 21:05:06,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:05:06,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:05:06,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-21 21:05:06,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/data/3c4e2141f/38bbc61d1bea418a81366236e2a31b16/FLAG9bdba41ba [2023-11-21 21:05:06,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/data/3c4e2141f/38bbc61d1bea418a81366236e2a31b16 [2023-11-21 21:05:06,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:05:06,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:05:06,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:05:06,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:05:06,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:05:06,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:05:06" (1/1) ... [2023-11-21 21:05:06,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7616b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:06, skipping insertion in model container [2023-11-21 21:05:06,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:05:06" (1/1) ... [2023-11-21 21:05:06,679 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:05:06,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:05:06,961 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:05:07,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:05:07,096 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:05:07,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07 WrapperNode [2023-11-21 21:05:07,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:05:07,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:05:07,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:05:07,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:05:07,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,207 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 1343 [2023-11-21 21:05:07,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:05:07,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:05:07,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:05:07,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:05:07,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:05:07,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:05:07,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:05:07,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:05:07,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:05:07,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:05:07,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:05:07,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af444174-80e6-4bdd-9638-1db675f0e52a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:05:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:05:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:05:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:05:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:05:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 21:05:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 21:05:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 21:05:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 21:05:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 21:05:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 21:05:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:05:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:05:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:05:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:05:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:05:07,462 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:05:07,690 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:05:07,700 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:05:09,417 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:05:09,458 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:05:09,459 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 21:05:09,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:09 BoogieIcfgContainer [2023-11-21 21:05:09,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:05:09,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:05:09,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:05:09,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:05:09,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:05:06" (1/3) ... [2023-11-21 21:05:09,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9b2a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:05:09, skipping insertion in model container [2023-11-21 21:05:09,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (2/3) ... [2023-11-21 21:05:09,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9b2a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:05:09, skipping insertion in model container [2023-11-21 21:05:09,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:09" (3/3) ... [2023-11-21 21:05:09,476 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-11-21 21:05:09,486 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:05:09,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:05:09,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2023-11-21 21:05:09,499 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:05:09,866 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 21:05:09,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1694 places, 1795 transitions, 3611 flow [2023-11-21 21:05:12,147 INFO L124 PetriNetUnfolderBase]: 111/1792 cut-off events. [2023-11-21 21:05:12,147 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 21:05:12,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1805 conditions, 1792 events. 111/1792 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7862 event pairs, 0 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 1391. Up to 2 conditions per place. [2023-11-21 21:05:12,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 1694 places, 1795 transitions, 3611 flow [2023-11-21 21:05:12,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1665 places, 1763 transitions, 3544 flow [2023-11-21 21:05:12,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:05:12,395 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;@2ed7052e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:05:12,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2023-11-21 21:05:12,410 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:05:12,420 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-21 21:05:12,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:05:12,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:12,421 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:12,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:12,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1105597799, now seen corresponding path program 1 times [2023-11-21 21:05:12,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:12,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326369148] [2023-11-21 21:05:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:12,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:12,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:12,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326369148] [2023-11-21 21:05:12,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326369148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:12,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:12,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832422629] [2023-11-21 21:05:12,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:12,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:12,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:12,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-21 21:05:12,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1665 places, 1763 transitions, 3544 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:12,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:12,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-21 21:05:12,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:16,222 INFO L124 PetriNetUnfolderBase]: 171/3558 cut-off events. [2023-11-21 21:05:16,222 INFO L125 PetriNetUnfolderBase]: For 21/23 co-relation queries the response was YES. [2023-11-21 21:05:16,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3607 conditions, 3558 events. 171/3558 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22201 event pairs, 7 based on Foata normal form. 120/2952 useless extension candidates. Maximal degree in co-relation 3205. Up to 25 conditions per place. [2023-11-21 21:05:16,493 INFO L140 encePairwiseOnDemand]: 1756/1795 looper letters, 11 selfloop transitions, 2 changer transitions 6/1726 dead transitions. [2023-11-21 21:05:16,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1666 places, 1726 transitions, 3496 flow [2023-11-21 21:05:16,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:16,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5276 transitions. [2023-11-21 21:05:16,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9797585886722378 [2023-11-21 21:05:16,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5276 transitions. [2023-11-21 21:05:16,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5276 transitions. [2023-11-21 21:05:16,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:16,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5276 transitions. [2023-11-21 21:05:16,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1758.6666666666667) internal successors, (5276), 3 states have internal predecessors, (5276), 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) [2023-11-21 21:05:16,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:16,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:16,620 INFO L175 Difference]: Start difference. First operand has 1665 places, 1763 transitions, 3544 flow. Second operand 3 states and 5276 transitions. [2023-11-21 21:05:16,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1666 places, 1726 transitions, 3496 flow [2023-11-21 21:05:16,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1660 places, 1726 transitions, 3484 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 21:05:16,884 INFO L231 Difference]: Finished difference. Result has 1660 places, 1720 transitions, 3450 flow [2023-11-21 21:05:16,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3458, PETRI_DIFFERENCE_MINUEND_PLACES=1658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3450, PETRI_PLACES=1660, PETRI_TRANSITIONS=1720} [2023-11-21 21:05:16,893 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -5 predicate places. [2023-11-21 21:05:16,894 INFO L495 AbstractCegarLoop]: Abstraction has has 1660 places, 1720 transitions, 3450 flow [2023-11-21 21:05:16,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:16,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:16,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:16,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:05:16,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:16,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:16,901 INFO L85 PathProgramCache]: Analyzing trace with hash -341135342, now seen corresponding path program 1 times [2023-11-21 21:05:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:16,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14128588] [2023-11-21 21:05:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:16,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:17,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:17,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14128588] [2023-11-21 21:05:17,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14128588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:17,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:17,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:17,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670170969] [2023-11-21 21:05:17,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:17,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:17,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:17,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:17,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:17,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-21 21:05:17,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1660 places, 1720 transitions, 3450 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:17,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:17,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-21 21:05:17,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:19,809 INFO L124 PetriNetUnfolderBase]: 171/3551 cut-off events. [2023-11-21 21:05:19,809 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-21 21:05:19,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 3551 events. 171/3551 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 23255 event pairs, 7 based on Foata normal form. 0/2832 useless extension candidates. Maximal degree in co-relation 3543. Up to 25 conditions per place. [2023-11-21 21:05:20,059 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1719 dead transitions. [2023-11-21 21:05:20,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1655 places, 1719 transitions, 3474 flow [2023-11-21 21:05:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:20,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-21 21:05:20,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-21 21:05:20,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-21 21:05:20,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-21 21:05:20,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:20,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-21 21:05:20,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 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) [2023-11-21 21:05:20,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:20,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:20,129 INFO L175 Difference]: Start difference. First operand has 1660 places, 1720 transitions, 3450 flow. Second operand 3 states and 5240 transitions. [2023-11-21 21:05:20,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1655 places, 1719 transitions, 3474 flow [2023-11-21 21:05:20,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1653 places, 1719 transitions, 3470 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:20,169 INFO L231 Difference]: Finished difference. Result has 1653 places, 1719 transitions, 3448 flow [2023-11-21 21:05:20,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3444, PETRI_DIFFERENCE_MINUEND_PLACES=1651, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1717, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3448, PETRI_PLACES=1653, PETRI_TRANSITIONS=1719} [2023-11-21 21:05:20,173 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -12 predicate places. [2023-11-21 21:05:20,173 INFO L495 AbstractCegarLoop]: Abstraction has has 1653 places, 1719 transitions, 3448 flow [2023-11-21 21:05:20,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:20,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:20,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:20,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:05:20,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:20,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:20,185 INFO L85 PathProgramCache]: Analyzing trace with hash 149130328, now seen corresponding path program 1 times [2023-11-21 21:05:20,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009356399] [2023-11-21 21:05:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:20,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:20,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:20,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:20,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009356399] [2023-11-21 21:05:20,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009356399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:20,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:20,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813394777] [2023-11-21 21:05:20,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:20,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:20,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:20,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:20,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:20,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-21 21:05:20,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1653 places, 1719 transitions, 3448 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:20,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:20,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-21 21:05:20,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:22,558 INFO L124 PetriNetUnfolderBase]: 123/2647 cut-off events. [2023-11-21 21:05:22,558 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-21 21:05:22,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2680 conditions, 2647 events. 123/2647 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 14879 event pairs, 5 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 2626. Up to 22 conditions per place. [2023-11-21 21:05:22,966 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1718 dead transitions. [2023-11-21 21:05:22,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1654 places, 1718 transitions, 3472 flow [2023-11-21 21:05:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:22,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-21 21:05:22,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-21 21:05:22,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-21 21:05:22,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-21 21:05:22,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:22,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-21 21:05:23,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 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) [2023-11-21 21:05:23,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:23,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:23,039 INFO L175 Difference]: Start difference. First operand has 1653 places, 1719 transitions, 3448 flow. Second operand 3 states and 5240 transitions. [2023-11-21 21:05:23,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1654 places, 1718 transitions, 3472 flow [2023-11-21 21:05:23,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1652 places, 1718 transitions, 3468 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:23,086 INFO L231 Difference]: Finished difference. Result has 1652 places, 1718 transitions, 3446 flow [2023-11-21 21:05:23,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3442, PETRI_DIFFERENCE_MINUEND_PLACES=1650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3446, PETRI_PLACES=1652, PETRI_TRANSITIONS=1718} [2023-11-21 21:05:23,092 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -13 predicate places. [2023-11-21 21:05:23,092 INFO L495 AbstractCegarLoop]: Abstraction has has 1652 places, 1718 transitions, 3446 flow [2023-11-21 21:05:23,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:23,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:23,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:23,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:05:23,095 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:23,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1687594488, now seen corresponding path program 1 times [2023-11-21 21:05:23,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:23,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116527055] [2023-11-21 21:05:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:23,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:23,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:23,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116527055] [2023-11-21 21:05:23,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116527055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:23,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:23,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:23,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331461105] [2023-11-21 21:05:23,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:23,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:23,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:23,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-21 21:05:23,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1652 places, 1718 transitions, 3446 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:23,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:23,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-21 21:05:23,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:25,450 INFO L124 PetriNetUnfolderBase]: 123/2646 cut-off events. [2023-11-21 21:05:25,450 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-21 21:05:25,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 2646 events. 123/2646 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 15348 event pairs, 5 based on Foata normal form. 0/2126 useless extension candidates. Maximal degree in co-relation 2617. Up to 22 conditions per place. [2023-11-21 21:05:25,590 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1717 dead transitions. [2023-11-21 21:05:25,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1653 places, 1717 transitions, 3470 flow [2023-11-21 21:05:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:25,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-21 21:05:25,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-21 21:05:25,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-21 21:05:25,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-21 21:05:25,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:25,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-21 21:05:25,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 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) [2023-11-21 21:05:25,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:25,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:25,644 INFO L175 Difference]: Start difference. First operand has 1652 places, 1718 transitions, 3446 flow. Second operand 3 states and 5240 transitions. [2023-11-21 21:05:25,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1653 places, 1717 transitions, 3470 flow [2023-11-21 21:05:25,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1651 places, 1717 transitions, 3466 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:25,824 INFO L231 Difference]: Finished difference. Result has 1651 places, 1717 transitions, 3444 flow [2023-11-21 21:05:25,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3440, PETRI_DIFFERENCE_MINUEND_PLACES=1649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3444, PETRI_PLACES=1651, PETRI_TRANSITIONS=1717} [2023-11-21 21:05:25,829 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -14 predicate places. [2023-11-21 21:05:25,829 INFO L495 AbstractCegarLoop]: Abstraction has has 1651 places, 1717 transitions, 3444 flow [2023-11-21 21:05:25,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:25,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:25,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:25,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:05:25,832 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:25,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1971258545, now seen corresponding path program 1 times [2023-11-21 21:05:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365865504] [2023-11-21 21:05:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:25,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:25,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:25,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365865504] [2023-11-21 21:05:25,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365865504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:25,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:25,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423829070] [2023-11-21 21:05:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:25,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:26,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-21 21:05:26,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1651 places, 1717 transitions, 3444 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:26,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:26,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-21 21:05:26,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:27,584 INFO L124 PetriNetUnfolderBase]: 102/2214 cut-off events. [2023-11-21 21:05:27,584 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-21 21:05:27,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 2214 events. 102/2214 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 11521 event pairs, 7 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 2179. Up to 25 conditions per place. [2023-11-21 21:05:27,858 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1716 dead transitions. [2023-11-21 21:05:27,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1652 places, 1716 transitions, 3468 flow [2023-11-21 21:05:27,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:27,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:27,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-21 21:05:27,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-21 21:05:27,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-21 21:05:27,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-21 21:05:27,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:27,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-21 21:05:27,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 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) [2023-11-21 21:05:27,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:27,914 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:27,914 INFO L175 Difference]: Start difference. First operand has 1651 places, 1717 transitions, 3444 flow. Second operand 3 states and 5240 transitions. [2023-11-21 21:05:27,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1652 places, 1716 transitions, 3468 flow [2023-11-21 21:05:27,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1650 places, 1716 transitions, 3464 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:27,960 INFO L231 Difference]: Finished difference. Result has 1650 places, 1716 transitions, 3442 flow [2023-11-21 21:05:27,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3438, PETRI_DIFFERENCE_MINUEND_PLACES=1648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1716, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1714, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3442, PETRI_PLACES=1650, PETRI_TRANSITIONS=1716} [2023-11-21 21:05:27,965 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -15 predicate places. [2023-11-21 21:05:27,965 INFO L495 AbstractCegarLoop]: Abstraction has has 1650 places, 1716 transitions, 3442 flow [2023-11-21 21:05:27,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:27,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:27,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:27,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:05:27,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:27,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:27,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1348790877, now seen corresponding path program 1 times [2023-11-21 21:05:27,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:27,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138651874] [2023-11-21 21:05:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:27,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:28,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:28,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138651874] [2023-11-21 21:05:28,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138651874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:28,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:28,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:28,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706469025] [2023-11-21 21:05:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:28,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:28,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:28,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1742 out of 1795 [2023-11-21 21:05:28,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1650 places, 1716 transitions, 3442 flow. Second operand has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:28,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:28,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1742 of 1795 [2023-11-21 21:05:28,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:30,005 INFO L124 PetriNetUnfolderBase]: 102/2213 cut-off events. [2023-11-21 21:05:30,005 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-21 21:05:30,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 2213 events. 102/2213 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11765 event pairs, 7 based on Foata normal form. 0/1791 useless extension candidates. Maximal degree in co-relation 2170. Up to 25 conditions per place. [2023-11-21 21:05:30,158 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 11 selfloop transitions, 2 changer transitions 0/1715 dead transitions. [2023-11-21 21:05:30,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1651 places, 1715 transitions, 3466 flow [2023-11-21 21:05:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-11-21 21:05:30,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9730733519034355 [2023-11-21 21:05:30,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-11-21 21:05:30,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-11-21 21:05:30,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:30,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-11-21 21:05:30,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 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) [2023-11-21 21:05:30,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:30,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:30,208 INFO L175 Difference]: Start difference. First operand has 1650 places, 1716 transitions, 3442 flow. Second operand 3 states and 5240 transitions. [2023-11-21 21:05:30,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1651 places, 1715 transitions, 3466 flow [2023-11-21 21:05:30,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1649 places, 1715 transitions, 3462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:30,248 INFO L231 Difference]: Finished difference. Result has 1649 places, 1715 transitions, 3440 flow [2023-11-21 21:05:30,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3436, PETRI_DIFFERENCE_MINUEND_PLACES=1647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3440, PETRI_PLACES=1649, PETRI_TRANSITIONS=1715} [2023-11-21 21:05:30,253 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -16 predicate places. [2023-11-21 21:05:30,253 INFO L495 AbstractCegarLoop]: Abstraction has has 1649 places, 1715 transitions, 3440 flow [2023-11-21 21:05:30,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1743.3333333333333) internal successors, (5230), 3 states have internal predecessors, (5230), 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) [2023-11-21 21:05:30,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:30,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:30,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:05:30,255 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:30,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1359817151, now seen corresponding path program 1 times [2023-11-21 21:05:30,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:30,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760871730] [2023-11-21 21:05:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:30,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:30,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:30,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760871730] [2023-11-21 21:05:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760871730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614655968] [2023-11-21 21:05:30,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:30,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:30,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:30,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:30,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:30,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1734 out of 1795 [2023-11-21 21:05:30,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1649 places, 1715 transitions, 3440 flow. Second operand has 3 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 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) [2023-11-21 21:05:30,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:30,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1734 of 1795 [2023-11-21 21:05:30,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:37,008 INFO L124 PetriNetUnfolderBase]: 504/9886 cut-off events. [2023-11-21 21:05:37,009 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:05:37,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9969 conditions, 9886 events. 504/9886 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 89707 event pairs, 18 based on Foata normal form. 0/7799 useless extension candidates. Maximal degree in co-relation 9883. Up to 56 conditions per place. [2023-11-21 21:05:37,658 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 19 selfloop transitions, 2 changer transitions 0/1714 dead transitions. [2023-11-21 21:05:37,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1650 places, 1714 transitions, 3480 flow [2023-11-21 21:05:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5224 transitions. [2023-11-21 21:05:37,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9701021355617456 [2023-11-21 21:05:37,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5224 transitions. [2023-11-21 21:05:37,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5224 transitions. [2023-11-21 21:05:37,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:37,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5224 transitions. [2023-11-21 21:05:37,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1741.3333333333333) internal successors, (5224), 3 states have internal predecessors, (5224), 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) [2023-11-21 21:05:37,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:37,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:37,690 INFO L175 Difference]: Start difference. First operand has 1649 places, 1715 transitions, 3440 flow. Second operand 3 states and 5224 transitions. [2023-11-21 21:05:37,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1650 places, 1714 transitions, 3480 flow [2023-11-21 21:05:37,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1648 places, 1714 transitions, 3476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:37,947 INFO L231 Difference]: Finished difference. Result has 1648 places, 1714 transitions, 3438 flow [2023-11-21 21:05:37,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3434, PETRI_DIFFERENCE_MINUEND_PLACES=1646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3438, PETRI_PLACES=1648, PETRI_TRANSITIONS=1714} [2023-11-21 21:05:37,955 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -17 predicate places. [2023-11-21 21:05:37,956 INFO L495 AbstractCegarLoop]: Abstraction has has 1648 places, 1714 transitions, 3438 flow [2023-11-21 21:05:37,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 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) [2023-11-21 21:05:37,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:37,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:37,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:05:37,958 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:37,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1858078153, now seen corresponding path program 1 times [2023-11-21 21:05:37,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:37,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9599987] [2023-11-21 21:05:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:38,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:38,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:38,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9599987] [2023-11-21 21:05:38,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9599987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:38,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:38,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:38,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615711528] [2023-11-21 21:05:38,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:38,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:38,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:38,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:38,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:38,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1729 out of 1795 [2023-11-21 21:05:38,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1648 places, 1714 transitions, 3438 flow. Second operand has 3 states, 3 states have (on average 1730.3333333333333) internal successors, (5191), 3 states have internal predecessors, (5191), 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) [2023-11-21 21:05:38,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:38,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1729 of 1795 [2023-11-21 21:05:38,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:48,598 INFO L124 PetriNetUnfolderBase]: 792/15333 cut-off events. [2023-11-21 21:05:48,598 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:05:49,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15457 conditions, 15333 events. 792/15333 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 155559 event pairs, 30 based on Foata normal form. 0/12067 useless extension candidates. Maximal degree in co-relation 15363. Up to 85 conditions per place. [2023-11-21 21:05:49,751 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 24 selfloop transitions, 2 changer transitions 0/1713 dead transitions. [2023-11-21 21:05:49,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1649 places, 1713 transitions, 3488 flow [2023-11-21 21:05:49,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5214 transitions. [2023-11-21 21:05:49,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9682451253481894 [2023-11-21 21:05:49,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5214 transitions. [2023-11-21 21:05:49,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5214 transitions. [2023-11-21 21:05:49,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:49,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5214 transitions. [2023-11-21 21:05:49,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1738.0) internal successors, (5214), 3 states have internal predecessors, (5214), 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) [2023-11-21 21:05:49,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:49,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:49,779 INFO L175 Difference]: Start difference. First operand has 1648 places, 1714 transitions, 3438 flow. Second operand 3 states and 5214 transitions. [2023-11-21 21:05:49,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1649 places, 1713 transitions, 3488 flow [2023-11-21 21:05:49,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1647 places, 1713 transitions, 3484 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:49,814 INFO L231 Difference]: Finished difference. Result has 1647 places, 1713 transitions, 3436 flow [2023-11-21 21:05:49,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=1645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3436, PETRI_PLACES=1647, PETRI_TRANSITIONS=1713} [2023-11-21 21:05:49,818 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -18 predicate places. [2023-11-21 21:05:49,819 INFO L495 AbstractCegarLoop]: Abstraction has has 1647 places, 1713 transitions, 3436 flow [2023-11-21 21:05:49,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1730.3333333333333) internal successors, (5191), 3 states have internal predecessors, (5191), 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) [2023-11-21 21:05:49,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:49,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:49,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:05:49,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:49,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:49,821 INFO L85 PathProgramCache]: Analyzing trace with hash -65591191, now seen corresponding path program 1 times [2023-11-21 21:05:49,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:49,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47997187] [2023-11-21 21:05:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:49,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:49,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:49,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:49,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47997187] [2023-11-21 21:05:49,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47997187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:49,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:49,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:49,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667645173] [2023-11-21 21:05:49,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:49,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:49,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:49,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:49,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:49,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1733 out of 1795 [2023-11-21 21:05:49,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1647 places, 1713 transitions, 3436 flow. Second operand has 3 states, 3 states have (on average 1734.3333333333333) internal successors, (5203), 3 states have internal predecessors, (5203), 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) [2023-11-21 21:05:49,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:49,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1733 of 1795 [2023-11-21 21:05:49,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:54,687 INFO L124 PetriNetUnfolderBase]: 297/5906 cut-off events. [2023-11-21 21:05:54,687 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2023-11-21 21:05:54,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5981 conditions, 5906 events. 297/5906 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 44568 event pairs, 18 based on Foata normal form. 0/4691 useless extension candidates. Maximal degree in co-relation 5879. Up to 57 conditions per place. [2023-11-21 21:05:55,083 INFO L140 encePairwiseOnDemand]: 1792/1795 looper letters, 20 selfloop transitions, 2 changer transitions 0/1712 dead transitions. [2023-11-21 21:05:55,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1648 places, 1712 transitions, 3478 flow [2023-11-21 21:05:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-21 21:05:55,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9697307335190344 [2023-11-21 21:05:55,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-21 21:05:55,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-21 21:05:55,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:55,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-21 21:05:55,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 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) [2023-11-21 21:05:55,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:55,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1795.0) internal successors, (7180), 4 states have internal predecessors, (7180), 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) [2023-11-21 21:05:55,117 INFO L175 Difference]: Start difference. First operand has 1647 places, 1713 transitions, 3436 flow. Second operand 3 states and 5222 transitions. [2023-11-21 21:05:55,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1648 places, 1712 transitions, 3478 flow [2023-11-21 21:05:55,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1646 places, 1712 transitions, 3474 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:55,142 INFO L231 Difference]: Finished difference. Result has 1646 places, 1712 transitions, 3434 flow [2023-11-21 21:05:55,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1795, PETRI_DIFFERENCE_MINUEND_FLOW=3430, PETRI_DIFFERENCE_MINUEND_PLACES=1644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3434, PETRI_PLACES=1646, PETRI_TRANSITIONS=1712} [2023-11-21 21:05:55,145 INFO L281 CegarLoopForPetriNet]: 1665 programPoint places, -19 predicate places. [2023-11-21 21:05:55,145 INFO L495 AbstractCegarLoop]: Abstraction has has 1646 places, 1712 transitions, 3434 flow [2023-11-21 21:05:55,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1734.3333333333333) internal successors, (5203), 3 states have internal predecessors, (5203), 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) [2023-11-21 21:05:55,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:55,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:55,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:05:55,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-11-21 21:05:55,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1798088740, now seen corresponding path program 1 times [2023-11-21 21:05:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058638177] [2023-11-21 21:05:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:55,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:55,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058638177] [2023-11-21 21:05:55,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058638177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:55,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:55,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475461721] [2023-11-21 21:05:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:55,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:55,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:55,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:55,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:55,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1729 out of 1795 [2023-11-21 21:05:55,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1646 places, 1712 transitions, 3434 flow. Second operand has 3 states, 3 states have (on average 1730.3333333333333) internal successors, (5191), 3 states have internal predecessors, (5191), 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) [2023-11-21 21:05:55,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:55,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1729 of 1795 [2023-11-21 21:05:55,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand