./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:09,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:09,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:09,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:09,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:09,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:09,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:09,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:09,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:09,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:09,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:09,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:09,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:09,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:09,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:09,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:09,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:09,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:09,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:09,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:09,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:09,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:09,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:09,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:09,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:09,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:09,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:09,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:09,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:09,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:09,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:09,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:09,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:09,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:09,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:09,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:09,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:09,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:09,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:09,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:09,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:09,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-12 22:27:09,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:09,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:09,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:09,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:09,278 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:09,279 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:09,279 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:09,279 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:27:09,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:09,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:09,288 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:27:09,288 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:27:09,288 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:09,289 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:27:09,289 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:27:09,289 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:27:09,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:09,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:09,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:27:09,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:27:09,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:09,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:09,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:09,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:09,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:09,293 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 22:27:09,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:09,293 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:09,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:09,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:09,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:09,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:09,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:09,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:09,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:09,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:09,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:09,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:27:09,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:27:09,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:09,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:09,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:09,298 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f [2021-11-12 22:27:09,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:09,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:09,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:09,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:09,597 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:09,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-11-12 22:27:09,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/347f47c4b/70f98393295740a886314a1b70c159f2/FLAG0a9542020 [2021-11-12 22:27:10,216 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:10,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-11-12 22:27:10,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/347f47c4b/70f98393295740a886314a1b70c159f2/FLAG0a9542020 [2021-11-12 22:27:10,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/347f47c4b/70f98393295740a886314a1b70c159f2 [2021-11-12 22:27:10,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:10,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:10,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:10,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:10,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:10,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:10" (1/1) ... [2021-11-12 22:27:10,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3e6e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:10, skipping insertion in model container [2021-11-12 22:27:10,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:10" (1/1) ... [2021-11-12 22:27:10,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:10,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:11,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:11,049 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:27:11,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@697a4cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:11, skipping insertion in model container [2021-11-12 22:27:11,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:11,051 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:27:11,053 INFO L158 Benchmark]: Toolchain (without parser) took 524.31ms. Allocated memory is still 132.1MB. Free memory was 97.8MB in the beginning and 103.9MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:27:11,054 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:11,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.60ms. Allocated memory is still 132.1MB. Free memory was 97.8MB in the beginning and 103.9MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:27:11,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.60ms. Allocated memory is still 132.1MB. Free memory was 97.8MB in the beginning and 103.9MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 920]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:13,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:13,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:13,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:13,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:13,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:13,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:13,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:13,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:13,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:13,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:13,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:13,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:13,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:13,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:13,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:13,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:13,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:13,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:13,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:13,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:13,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:13,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:13,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:13,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:13,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:13,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:13,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:13,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:13,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:13,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:13,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:13,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:13,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:13,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:13,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:13,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:13,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:13,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:13,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:13,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:13,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-12 22:27:13,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:13,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:13,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:13,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:13,368 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:13,369 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:13,369 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:13,369 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:13,369 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:13,369 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:13,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:13,370 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:13,371 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:27:13,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:13,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:13,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:13,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:13,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:13,372 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 22:27:13,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:13,373 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:27:13,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:27:13,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:13,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:13,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:13,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:13,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:13,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:27:13,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:13,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:13,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:13,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:13,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:13,383 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:27:13,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:27:13,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:13,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:13,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:13,385 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f [2021-11-12 22:27:13,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:13,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:13,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:13,825 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:13,825 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:13,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-11-12 22:27:13,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/525717880/a2a8b9009f6a4174a5d77c84b486510c/FLAGfa323bd07 [2021-11-12 22:27:14,504 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:14,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-11-12 22:27:14,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/525717880/a2a8b9009f6a4174a5d77c84b486510c/FLAGfa323bd07 [2021-11-12 22:27:14,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/data/525717880/a2a8b9009f6a4174a5d77c84b486510c [2021-11-12 22:27:14,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:14,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:14,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:14,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:14,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:14,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:14" (1/1) ... [2021-11-12 22:27:14,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56649176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:14, skipping insertion in model container [2021-11-12 22:27:14,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:14" (1/1) ... [2021-11-12 22:27:14,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:14,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:15,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:15,380 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:27:15,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:15,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:15,426 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:15,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:15,587 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:15,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15 WrapperNode [2021-11-12 22:27:15,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:15,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:15,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:15,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:15,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:15,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:15,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:15,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:15,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:15,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:15,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:15,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:15,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (1/1) ... [2021-11-12 22:27:15,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:15,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:15,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:15,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:27:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:27:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:27:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:27:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 22:27:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 22:27:15,865 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 22:27:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:15,867 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:27:16,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:27:16,375 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:27:16,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:16 BoogieIcfgContainer [2021-11-12 22:27:16,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:27:16,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:27:16,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:27:16,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:27:16,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:14" (1/3) ... [2021-11-12 22:27:16,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1eedb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:16, skipping insertion in model container [2021-11-12 22:27:16,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:15" (2/3) ... [2021-11-12 22:27:16,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1eedb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:16, skipping insertion in model container [2021-11-12 22:27:16,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:16" (3/3) ... [2021-11-12 22:27:16,386 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2021-11-12 22:27:16,391 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:27:16,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:27:16,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-12 22:27:16,392 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:27:16,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,420 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,421 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,421 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,421 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,422 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,422 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,422 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,422 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,423 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,423 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,423 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,423 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,423 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,424 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,424 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,425 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,425 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,425 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,427 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,427 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,428 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,428 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,428 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,429 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,429 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,429 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,429 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,430 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,430 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,430 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,430 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,431 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,431 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,431 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,431 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,432 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,432 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,432 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,432 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,433 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,433 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,433 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,433 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,434 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,435 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,435 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,436 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,436 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,437 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,437 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,438 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,438 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,438 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,439 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,439 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,439 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,440 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,440 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,440 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,441 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,441 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,441 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,442 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,442 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,443 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,443 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,443 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,444 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,444 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,444 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,445 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,445 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,451 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,452 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,452 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,453 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:16,457 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 22:27:16,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:27:16,509 INFO L339 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:27:16,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-12 22:27:16,523 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:27:16,536 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 98 transitions, 204 flow [2021-11-12 22:27:16,539 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 98 transitions, 204 flow [2021-11-12 22:27:16,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 98 transitions, 204 flow [2021-11-12 22:27:16,608 INFO L129 PetriNetUnfolder]: 0/97 cut-off events. [2021-11-12 22:27:16,609 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 22:27:16,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 0/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-12 22:27:16,614 INFO L116 LiptonReduction]: Number of co-enabled transitions 1612 [2021-11-12 22:27:24,193 INFO L131 LiptonReduction]: Checked pairs total: 10793 [2021-11-12 22:27:24,193 INFO L133 LiptonReduction]: Total number of compositions: 54 [2021-11-12 22:27:24,201 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 44 transitions, 96 flow [2021-11-12 22:27:24,230 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 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) [2021-11-12 22:27:24,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 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) [2021-11-12 22:27:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:27:24,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:24,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:24,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:24,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:24,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1691409919, now seen corresponding path program 1 times [2021-11-12 22:27:24,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:24,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421688685] [2021-11-12 22:27:24,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:24,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:24,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:24,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:24,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:27:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:24,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:24,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:24,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:24,545 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:24,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:27:24,646 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:24,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 42 [2021-11-12 22:27:24,843 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:24,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 82 [2021-11-12 22:27:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:25,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:25,190 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:25,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421688685] [2021-11-12 22:27:25,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421688685] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:25,191 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:25,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:27:25,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518835943] [2021-11-12 22:27:25,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:25,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:27:25,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:27:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:27:25,220 INFO L87 Difference]: Start difference. First operand has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 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) Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-12 22:27:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:25,949 INFO L93 Difference]: Finished difference Result 461 states and 873 transitions. [2021-11-12 22:27:25,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:25,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 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) Word has length 9 [2021-11-12 22:27:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:25,976 INFO L225 Difference]: With dead ends: 461 [2021-11-12 22:27:25,978 INFO L226 Difference]: Without dead ends: 461 [2021-11-12 22:27:25,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:27:25,990 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 36 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 528.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.25ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 612.45ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:25,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 24 Invalid, 280 Unknown, 0 Unchecked, 5.25ms Time], IncrementalHoareTripleChecker [21 Valid, 240 Invalid, 0 Unknown, 19 Unchecked, 612.45ms Time] [2021-11-12 22:27:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-12 22:27:26,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 447. [2021-11-12 22:27:26,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 436 states have (on average 1.9426605504587156) internal successors, (847), 446 states have internal predecessors, (847), 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) [2021-11-12 22:27:26,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 847 transitions. [2021-11-12 22:27:26,094 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 847 transitions. Word has length 9 [2021-11-12 22:27:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:26,095 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 847 transitions. [2021-11-12 22:27:26,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-12 22:27:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 847 transitions. [2021-11-12 22:27:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:27:26,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:26,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:26,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:26,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:26,313 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:26,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:26,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2099919771, now seen corresponding path program 1 times [2021-11-12 22:27:26,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:26,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256840806] [2021-11-12 22:27:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:26,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:26,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:26,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:27:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:26,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:26,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:26,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:26,443 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:26,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-12 22:27:26,557 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:26,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 54 [2021-11-12 22:27:26,738 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:26,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 90 [2021-11-12 22:27:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:26,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:27,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:27,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256840806] [2021-11-12 22:27:27,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256840806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:27,021 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:27,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:27:27,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766246874] [2021-11-12 22:27:27,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:27,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:27:27,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:27,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:27:27,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:27:27,023 INFO L87 Difference]: Start difference. First operand 447 states and 847 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-11-12 22:27:27,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:27,449 INFO L93 Difference]: Finished difference Result 623 states and 1191 transitions. [2021-11-12 22:27:27,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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) Word has length 9 [2021-11-12 22:27:27,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:27,455 INFO L225 Difference]: With dead ends: 623 [2021-11-12 22:27:27,456 INFO L226 Difference]: Without dead ends: 623 [2021-11-12 22:27:27,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:27:27,457 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 39 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 250.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.39ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 296.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:27,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 32 Invalid, 189 Unknown, 0 Unchecked, 2.39ms Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 78 Unchecked, 296.50ms Time] [2021-11-12 22:27:27,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-11-12 22:27:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 533. [2021-11-12 22:27:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 522 states have (on average 1.9444444444444444) internal successors, (1015), 532 states have internal predecessors, (1015), 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) [2021-11-12 22:27:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 1015 transitions. [2021-11-12 22:27:27,494 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 1015 transitions. Word has length 9 [2021-11-12 22:27:27,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:27,500 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 1015 transitions. [2021-11-12 22:27:27,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-11-12 22:27:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 1015 transitions. [2021-11-12 22:27:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 22:27:27,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:27,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:27,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:27,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:27,717 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:27,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash 730231185, now seen corresponding path program 1 times [2021-11-12 22:27:27,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:27,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372460433] [2021-11-12 22:27:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:27,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:27,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:27,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:27,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:27:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:27,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:27:27,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:27,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:27,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:27,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:27,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372460433] [2021-11-12 22:27:27,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372460433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:27,857 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:27,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:27:27,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645593175] [2021-11-12 22:27:27,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:27,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:27:27,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:27,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:27:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:27:27,860 INFO L87 Difference]: Start difference. First operand 533 states and 1015 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-12 22:27:27,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:27,918 INFO L93 Difference]: Finished difference Result 202 states and 330 transitions. [2021-11-12 22:27:27,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:27:27,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2021-11-12 22:27:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:27,920 INFO L225 Difference]: With dead ends: 202 [2021-11-12 22:27:27,920 INFO L226 Difference]: Without dead ends: 202 [2021-11-12 22:27:27,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:27:27,922 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:27,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 40 Invalid, 20 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 49.34ms Time] [2021-11-12 22:27:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-12 22:27:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-11-12 22:27:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 194 states have (on average 1.7010309278350515) internal successors, (330), 201 states have internal predecessors, (330), 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) [2021-11-12 22:27:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 330 transitions. [2021-11-12 22:27:27,931 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 330 transitions. Word has length 10 [2021-11-12 22:27:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:27,931 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 330 transitions. [2021-11-12 22:27:27,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-12 22:27:27,932 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 330 transitions. [2021-11-12 22:27:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 22:27:27,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:27,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:27,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:28,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:28,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:28,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1751287675, now seen corresponding path program 1 times [2021-11-12 22:27:28,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:28,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124342562] [2021-11-12 22:27:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:28,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:28,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:28,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:28,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:27:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:28,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:28,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:28,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:28,312 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:28,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-12 22:27:28,404 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:28,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2021-11-12 22:27:28,527 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:28,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 92 [2021-11-12 22:27:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:28,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:28,813 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:28,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124342562] [2021-11-12 22:27:28,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124342562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:28,813 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:28,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:27:28,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255326683] [2021-11-12 22:27:28,814 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:28,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:27:28,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:28,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:27:28,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:27:28,815 INFO L87 Difference]: Start difference. First operand 202 states and 330 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 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) [2021-11-12 22:27:29,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:29,056 INFO L93 Difference]: Finished difference Result 200 states and 328 transitions. [2021-11-12 22:27:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:29,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 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) Word has length 15 [2021-11-12 22:27:29,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:29,063 INFO L225 Difference]: With dead ends: 200 [2021-11-12 22:27:29,063 INFO L226 Difference]: Without dead ends: 200 [2021-11-12 22:27:29,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:27:29,064 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.88ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 166.65ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:29,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 127 Unknown, 0 Unchecked, 0.88ms Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 36 Unchecked, 166.65ms Time] [2021-11-12 22:27:29,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-12 22:27:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-12 22:27:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 194 states have (on average 1.690721649484536) internal successors, (328), 199 states have internal predecessors, (328), 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) [2021-11-12 22:27:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 328 transitions. [2021-11-12 22:27:29,071 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 328 transitions. Word has length 15 [2021-11-12 22:27:29,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:29,072 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 328 transitions. [2021-11-12 22:27:29,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 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) [2021-11-12 22:27:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 328 transitions. [2021-11-12 22:27:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 22:27:29,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:29,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:29,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 22:27:29,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:29,284 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:29,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1791736579, now seen corresponding path program 1 times [2021-11-12 22:27:29,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:29,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650749456] [2021-11-12 22:27:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:29,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:29,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:29,290 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:29,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:27:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:29,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:29,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:29,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:29,429 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:29,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 22:27:29,482 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:29,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 51 [2021-11-12 22:27:29,576 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:29,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 85 [2021-11-12 22:27:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:29,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:29,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:29,802 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:29,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650749456] [2021-11-12 22:27:29,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650749456] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:29,802 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:29,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-12 22:27:29,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418150060] [2021-11-12 22:27:29,803 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:29,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:27:29,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:27:29,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:27:29,804 INFO L87 Difference]: Start difference. First operand 200 states and 328 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-11-12 22:27:30,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:30,281 INFO L93 Difference]: Finished difference Result 221 states and 366 transitions. [2021-11-12 22:27:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:30,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) Word has length 15 [2021-11-12 22:27:30,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:30,284 INFO L225 Difference]: With dead ends: 221 [2021-11-12 22:27:30,284 INFO L226 Difference]: Without dead ends: 208 [2021-11-12 22:27:30,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:27:30,285 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 383.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 442.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:30,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 217 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 442.41ms Time] [2021-11-12 22:27:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-12 22:27:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2021-11-12 22:27:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.6896551724137931) internal successors, (343), 207 states have internal predecessors, (343), 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) [2021-11-12 22:27:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 343 transitions. [2021-11-12 22:27:30,293 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 343 transitions. Word has length 15 [2021-11-12 22:27:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:30,294 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 343 transitions. [2021-11-12 22:27:30,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-11-12 22:27:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 343 transitions. [2021-11-12 22:27:30,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 22:27:30,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:30,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:30,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:30,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:30,510 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:30,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:30,511 INFO L85 PathProgramCache]: Analyzing trace with hash 810783800, now seen corresponding path program 1 times [2021-11-12 22:27:30,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:30,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527980421] [2021-11-12 22:27:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:30,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:30,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:30,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:30,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:27:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:30,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:30,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:30,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:30,643 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:30,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:27:30,698 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:30,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 40 [2021-11-12 22:27:30,825 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:30,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 72 [2021-11-12 22:27:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:30,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:31,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:31,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527980421] [2021-11-12 22:27:31,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527980421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:31,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:31,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:27:31,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168511133] [2021-11-12 22:27:31,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:31,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:27:31,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:31,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:27:31,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:27:31,082 INFO L87 Difference]: Start difference. First operand 208 states and 343 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 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) [2021-11-12 22:27:31,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:31,352 INFO L93 Difference]: Finished difference Result 275 states and 459 transitions. [2021-11-12 22:27:31,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:31,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 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) Word has length 22 [2021-11-12 22:27:31,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:31,355 INFO L225 Difference]: With dead ends: 275 [2021-11-12 22:27:31,355 INFO L226 Difference]: Without dead ends: 240 [2021-11-12 22:27:31,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:27:31,356 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 222.03ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:31,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 22 Invalid, 180 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 96 Unchecked, 222.03ms Time] [2021-11-12 22:27:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-12 22:27:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2021-11-12 22:27:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.8222222222222222) internal successors, (410), 229 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:27:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 410 transitions. [2021-11-12 22:27:31,369 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 410 transitions. Word has length 22 [2021-11-12 22:27:31,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:31,370 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 410 transitions. [2021-11-12 22:27:31,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 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) [2021-11-12 22:27:31,371 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 410 transitions. [2021-11-12 22:27:31,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:27:31,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:31,376 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:27:31,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:31,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:31,590 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:31,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:31,590 INFO L85 PathProgramCache]: Analyzing trace with hash -632096898, now seen corresponding path program 1 times [2021-11-12 22:27:31,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:31,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642809162] [2021-11-12 22:27:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:31,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:31,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:31,591 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:31,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:27:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:31,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:31,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:31,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:31,742 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:31,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-12 22:27:31,858 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:31,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 57 [2021-11-12 22:27:32,000 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:32,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 86 [2021-11-12 22:27:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:32,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:32,289 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:32,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642809162] [2021-11-12 22:27:32,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642809162] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:32,289 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:32,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:27:32,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203946012] [2021-11-12 22:27:32,290 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:32,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:27:32,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:32,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:27:32,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:27:32,291 INFO L87 Difference]: Start difference. First operand 230 states and 410 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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) [2021-11-12 22:27:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:32,695 INFO L93 Difference]: Finished difference Result 258 states and 450 transitions. [2021-11-12 22:27:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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) Word has length 23 [2021-11-12 22:27:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:32,698 INFO L225 Difference]: With dead ends: 258 [2021-11-12 22:27:32,698 INFO L226 Difference]: Without dead ends: 258 [2021-11-12 22:27:32,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:27:32,699 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 286.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.38ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 344.26ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:32,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 212 Unknown, 0 Unchecked, 1.38ms Time], IncrementalHoareTripleChecker [5 Valid, 166 Invalid, 0 Unknown, 41 Unchecked, 344.26ms Time] [2021-11-12 22:27:32,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-12 22:27:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2021-11-12 22:27:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.8170212765957447) internal successors, (427), 239 states have internal predecessors, (427), 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) [2021-11-12 22:27:32,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 427 transitions. [2021-11-12 22:27:32,710 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 427 transitions. Word has length 23 [2021-11-12 22:27:32,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:32,710 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 427 transitions. [2021-11-12 22:27:32,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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) [2021-11-12 22:27:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 427 transitions. [2021-11-12 22:27:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:27:32,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:32,712 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:27:32,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:32,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:32,929 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:32,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash -485525178, now seen corresponding path program 2 times [2021-11-12 22:27:32,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:32,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232478914] [2021-11-12 22:27:32,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:27:32,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:32,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:32,931 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:32,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:27:33,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:27:33,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:27:33,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:33,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:33,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:33,074 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:33,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:27:33,128 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:33,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 41 [2021-11-12 22:27:33,217 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:33,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 61 [2021-11-12 22:27:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:33,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:33,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:33,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232478914] [2021-11-12 22:27:33,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232478914] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:33,426 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:33,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-12 22:27:33,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498316018] [2021-11-12 22:27:33,426 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:33,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:27:33,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:33,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:27:33,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:27:33,428 INFO L87 Difference]: Start difference. First operand 240 states and 427 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-11-12 22:27:33,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:33,973 INFO L93 Difference]: Finished difference Result 273 states and 464 transitions. [2021-11-12 22:27:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:27:33,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 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) Word has length 23 [2021-11-12 22:27:33,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:33,976 INFO L225 Difference]: With dead ends: 273 [2021-11-12 22:27:33,976 INFO L226 Difference]: Without dead ends: 261 [2021-11-12 22:27:33,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:27:33,977 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 33 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 436.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.58ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 511.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:33,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 19 Invalid, 310 Unknown, 0 Unchecked, 2.58ms Time], IncrementalHoareTripleChecker [16 Valid, 275 Invalid, 0 Unknown, 19 Unchecked, 511.82ms Time] [2021-11-12 22:27:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-12 22:27:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 219. [2021-11-12 22:27:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.794392523364486) internal successors, (384), 218 states have internal predecessors, (384), 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) [2021-11-12 22:27:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 384 transitions. [2021-11-12 22:27:33,987 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 384 transitions. Word has length 23 [2021-11-12 22:27:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:33,988 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 384 transitions. [2021-11-12 22:27:33,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-11-12 22:27:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 384 transitions. [2021-11-12 22:27:33,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:27:33,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:33,989 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:27:34,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:34,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:34,205 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:27:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:34,205 INFO L85 PathProgramCache]: Analyzing trace with hash -715181793, now seen corresponding path program 1 times [2021-11-12 22:27:34,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:34,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020660999] [2021-11-12 22:27:34,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:34,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:34,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:34,207 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:34,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:27:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:34,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:27:34,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:34,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2021-11-12 22:27:34,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:27:34,459 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:27:34,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-12 22:27:34,535 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:27:34,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 47 [2021-11-12 22:27:34,762 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:27:34,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 70 [2021-11-12 22:27:34,987 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-12 22:27:34,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 104 [2021-11-12 22:27:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:35,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:37,254 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|))))))) is different from false [2021-11-12 22:27:52,404 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (select (let ((.cse1 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse1 t_funThread1of1ForFork0_~p~0.base (store (select .cse1 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))))) is different from false [2021-11-12 22:27:54,421 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) is different from false [2021-11-12 22:27:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:54,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:54,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020660999] [2021-11-12 22:27:54,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020660999] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:54,452 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:54,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 14 [2021-11-12 22:27:54,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491302861] [2021-11-12 22:27:54,453 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:54,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:27:54,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:54,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:27:54,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=99, Unknown=4, NotChecked=66, Total=210 [2021-11-12 22:27:54,454 INFO L87 Difference]: Start difference. First operand 219 states and 384 transitions. Second operand has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-11-12 22:27:56,542 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_ULTIMATE.start_main_~#i~0#1.base|)) (= (_ bv0 1) (select (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|))) is different from false [2021-11-12 22:27:58,549 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (select (let ((.cse1 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse1 t_funThread1of1ForFork0_~p~0.base (store (select .cse1 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))) (= (_ bv0 1) (bvneg (select (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32))))) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|)) (exists ((v_arrayElimCell_44 (_ BitVec 1))) (let ((.cse2 (bvneg v_arrayElimCell_44))) (and (= (_ bv0 1) (bvadd (select (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|) .cse2)) (= (_ bv0 1) (bvneg .cse2)))))) is different from false [2021-11-12 22:28:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:01,573 INFO L93 Difference]: Finished difference Result 247 states and 436 transitions. [2021-11-12 22:28:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:28:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) Word has length 25 [2021-11-12 22:28:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:01,576 INFO L225 Difference]: With dead ends: 247 [2021-11-12 22:28:01,576 INFO L226 Difference]: Without dead ends: 247 [2021-11-12 22:28:01,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 26.3s TimeCoverageRelationStatistics Valid=56, Invalid=140, Unknown=6, NotChecked=140, Total=342 [2021-11-12 22:28:01,577 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 384 IncrementalHoareTripleChecker+Unchecked, 126.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:01,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 32 Invalid, 451 Unknown, 0 Unchecked, 1.22ms Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 384 Unchecked, 126.50ms Time] [2021-11-12 22:28:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-11-12 22:28:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 225. [2021-11-12 22:28:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.7954545454545454) internal successors, (395), 224 states have internal predecessors, (395), 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) [2021-11-12 22:28:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 395 transitions. [2021-11-12 22:28:01,586 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 395 transitions. Word has length 25 [2021-11-12 22:28:01,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:01,587 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 395 transitions. [2021-11-12 22:28:01,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-11-12 22:28:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 395 transitions. [2021-11-12 22:28:01,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:28:01,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:01,588 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:28:01,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:01,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:01,801 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:28:01,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash -718122453, now seen corresponding path program 2 times [2021-11-12 22:28:01,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:01,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648508862] [2021-11-12 22:28:01,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:28:01,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:01,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:01,803 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:01,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:28:01,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:28:01,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:28:01,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:28:01,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:01,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2021-11-12 22:28:01,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:28:01,995 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:28:01,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:28:02,062 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:28:02,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 39 [2021-11-12 22:28:02,215 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:28:02,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 63 [2021-11-12 22:28:02,407 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-12 22:28:02,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 89 [2021-11-12 22:28:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:02,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:04,559 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|))))))) is different from false [2021-11-12 22:28:13,888 WARN L227 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:28:23,475 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (select (let ((.cse1 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse1 t_funThread1of1ForFork0_~p~0.base (store (select .cse1 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))))) is different from false [2021-11-12 22:28:25,492 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) is different from false [2021-11-12 22:28:25,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:25,521 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:25,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648508862] [2021-11-12 22:28:25,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648508862] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:25,521 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:25,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 14 [2021-11-12 22:28:25,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234145619] [2021-11-12 22:28:25,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:25,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:28:25,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:28:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=98, Unknown=5, NotChecked=66, Total=210 [2021-11-12 22:28:25,522 INFO L87 Difference]: Start difference. First operand 225 states and 395 transitions. Second operand has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-11-12 22:28:27,630 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_ULTIMATE.start_main_~#i~0#1.base|)) (= (_ bv0 1) (select (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|))) is different from false [2021-11-12 22:28:29,639 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|))) (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (select (let ((.cse1 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse1 t_funThread1of1ForFork0_~p~0.base (store (select .cse1 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))) (= (_ bv0 1) (bvneg (select .cse2 (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32))))) (= (_ bv0 1) (select .cse2 |c_ULTIMATE.start_main_~#id~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|)))) is different from false [2021-11-12 22:28:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:46,211 INFO L93 Difference]: Finished difference Result 332 states and 573 transitions. [2021-11-12 22:28:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:28:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) Word has length 25 [2021-11-12 22:28:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:46,214 INFO L225 Difference]: With dead ends: 332 [2021-11-12 22:28:46,214 INFO L226 Difference]: Without dead ends: 332 [2021-11-12 22:28:46,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=99, Invalid=214, Unknown=13, NotChecked=180, Total=506 [2021-11-12 22:28:46,216 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 70 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 280.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.49ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 318 IncrementalHoareTripleChecker+Unchecked, 325.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:46,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 36 Invalid, 507 Unknown, 0 Unchecked, 2.49ms Time], IncrementalHoareTripleChecker [17 Valid, 172 Invalid, 0 Unknown, 318 Unchecked, 325.00ms Time] [2021-11-12 22:28:46,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-11-12 22:28:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 226. [2021-11-12 22:28:46,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.7918552036199096) internal successors, (396), 225 states have internal predecessors, (396), 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) [2021-11-12 22:28:46,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 396 transitions. [2021-11-12 22:28:46,226 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 396 transitions. Word has length 25 [2021-11-12 22:28:46,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:46,226 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 396 transitions. [2021-11-12 22:28:46,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-11-12 22:28:46,226 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 396 transitions. [2021-11-12 22:28:46,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:28:46,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:46,228 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:28:46,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:46,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:46,442 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:28:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1773059029, now seen corresponding path program 3 times [2021-11-12 22:28:46,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:46,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601302584] [2021-11-12 22:28:46,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:28:46,444 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:46,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:46,445 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:46,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:28:46,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 22:28:46,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:28:46,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:28:46,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:46,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:28:46,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:28:46,668 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:28:46,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-12 22:28:46,854 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:28:46,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2021-11-12 22:28:46,981 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:28:46,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 88 [2021-11-12 22:28:47,178 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-12 22:28:47,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 120 [2021-11-12 22:28:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:47,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:49,456 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select (select (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))) is different from false [2021-11-12 22:29:05,557 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))) is different from false [2021-11-12 22:29:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:05,582 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:05,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601302584] [2021-11-12 22:29:05,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601302584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:05,582 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:05,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 14 [2021-11-12 22:29:05,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917821628] [2021-11-12 22:29:05,583 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:05,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:29:05,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:05,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:29:05,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=112, Unknown=6, NotChecked=46, Total=210 [2021-11-12 22:29:05,584 INFO L87 Difference]: Start difference. First operand 226 states and 396 transitions. Second operand has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-11-12 22:29:07,657 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_ULTIMATE.start_main_~#i~0#1.base|)) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32)) (t_funThread1of1ForFork0_~p~0.base (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse0 t_funThread1of1ForFork0_~p~0.base (store (select .cse0 t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))) (= (_ bv0 1) (select (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|))) is different from false [2021-11-12 22:29:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:11,105 INFO L93 Difference]: Finished difference Result 260 states and 454 transitions. [2021-11-12 22:29:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:29:11,106 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) Word has length 25 [2021-11-12 22:29:11,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:11,108 INFO L225 Difference]: With dead ends: 260 [2021-11-12 22:29:11,109 INFO L226 Difference]: Without dead ends: 260 [2021-11-12 22:29:11,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=61, Invalid=154, Unknown=7, NotChecked=84, Total=306 [2021-11-12 22:29:11,110 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 47 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 242 IncrementalHoareTripleChecker+Unchecked, 144.08ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:11,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 32 Invalid, 316 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 242 Unchecked, 144.08ms Time] [2021-11-12 22:29:11,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-12 22:29:11,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 227. [2021-11-12 22:29:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 222 states have (on average 1.7927927927927927) internal successors, (398), 226 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:29:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 398 transitions. [2021-11-12 22:29:11,121 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 398 transitions. Word has length 25 [2021-11-12 22:29:11,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:11,122 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 398 transitions. [2021-11-12 22:29:11,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-11-12 22:29:11,122 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 398 transitions. [2021-11-12 22:29:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:29:11,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:11,123 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:29:11,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:11,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:11,337 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:29:11,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1851707269, now seen corresponding path program 4 times [2021-11-12 22:29:11,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:11,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694752352] [2021-11-12 22:29:11,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:29:11,338 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:11,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:11,339 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:11,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:29:11,447 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:29:11,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:29:11,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:29:11,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:11,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:29:11,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:29:11,567 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:29:11,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-12 22:29:11,677 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:29:11,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 52 [2021-11-12 22:29:11,849 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:29:11,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 83 [2021-11-12 22:29:12,096 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-12 22:29:12,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 117 [2021-11-12 22:29:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:12,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:20,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:29:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:20,534 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:20,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694752352] [2021-11-12 22:29:20,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694752352] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:20,534 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:20,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 13 [2021-11-12 22:29:20,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587023456] [2021-11-12 22:29:20,534 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:20,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:29:20,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:29:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:29:20,536 INFO L87 Difference]: Start difference. First operand 227 states and 398 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2021-11-12 22:29:20,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:20,987 INFO L93 Difference]: Finished difference Result 306 states and 531 transitions. [2021-11-12 22:29:20,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:29:20,988 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) Word has length 25 [2021-11-12 22:29:20,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:20,990 INFO L225 Difference]: With dead ends: 306 [2021-11-12 22:29:20,990 INFO L226 Difference]: Without dead ends: 306 [2021-11-12 22:29:20,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:29:20,991 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 70 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.57ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 328.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:20,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 31 Invalid, 286 Unknown, 0 Unchecked, 1.57ms Time], IncrementalHoareTripleChecker [19 Valid, 211 Invalid, 0 Unknown, 56 Unchecked, 328.66ms Time] [2021-11-12 22:29:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-12 22:29:20,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 225. [2021-11-12 22:29:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.790909090909091) internal successors, (394), 224 states have internal predecessors, (394), 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) [2021-11-12 22:29:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 394 transitions. [2021-11-12 22:29:21,000 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 394 transitions. Word has length 25 [2021-11-12 22:29:21,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:21,000 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 394 transitions. [2021-11-12 22:29:21,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2021-11-12 22:29:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 394 transitions. [2021-11-12 22:29:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:29:21,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:21,002 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:29:21,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:21,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:21,214 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:29:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1643410419, now seen corresponding path program 5 times [2021-11-12 22:29:21,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:21,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127382744] [2021-11-12 22:29:21,217 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:29:21,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:21,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:21,218 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:21,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:29:21,328 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:29:21,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:29:21,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:29:21,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:21,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2021-11-12 22:29:21,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:29:21,469 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:29:21,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:29:21,531 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:29:21,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 41 [2021-11-12 22:29:21,627 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:29:21,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 60 [2021-11-12 22:29:21,774 INFO L354 Elim1Store]: treesize reduction 168, result has 21.9 percent of original size [2021-11-12 22:29:21,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 80 [2021-11-12 22:29:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:21,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:32,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:29:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:32,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:32,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127382744] [2021-11-12 22:29:32,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127382744] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:32,119 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:32,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 13 [2021-11-12 22:29:32,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279740970] [2021-11-12 22:29:32,120 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:32,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:29:32,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:32,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:29:32,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:29:32,121 INFO L87 Difference]: Start difference. First operand 225 states and 394 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2021-11-12 22:29:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:33,275 INFO L93 Difference]: Finished difference Result 349 states and 597 transitions. [2021-11-12 22:29:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:29:33,276 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) Word has length 25 [2021-11-12 22:29:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:33,278 INFO L225 Difference]: With dead ends: 349 [2021-11-12 22:29:33,278 INFO L226 Difference]: Without dead ends: 334 [2021-11-12 22:29:33,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:29:33,279 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 123 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 686.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 796.73ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:33,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 9 Invalid, 606 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [80 Valid, 416 Invalid, 0 Unknown, 110 Unchecked, 796.73ms Time] [2021-11-12 22:29:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-11-12 22:29:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 281. [2021-11-12 22:29:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 276 states have (on average 1.8297101449275361) internal successors, (505), 280 states have internal predecessors, (505), 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) [2021-11-12 22:29:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 505 transitions. [2021-11-12 22:29:33,289 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 505 transitions. Word has length 25 [2021-11-12 22:29:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:33,290 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 505 transitions. [2021-11-12 22:29:33,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2021-11-12 22:29:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 505 transitions. [2021-11-12 22:29:33,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 22:29:33,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:33,291 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:29:33,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:33,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:33,504 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:29:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:33,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1040182474, now seen corresponding path program 1 times [2021-11-12 22:29:33,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:33,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884993739] [2021-11-12 22:29:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:33,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:33,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:33,506 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:33,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:29:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:33,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:29:33,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:33,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2021-11-12 22:29:33,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:29:33,755 INFO L354 Elim1Store]: treesize reduction 22, result has 31.3 percent of original size [2021-11-12 22:29:33,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-11-12 22:29:33,849 INFO L354 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2021-11-12 22:29:33,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 51 [2021-11-12 22:29:34,034 INFO L354 Elim1Store]: treesize reduction 101, result has 24.6 percent of original size [2021-11-12 22:29:34,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 84 [2021-11-12 22:29:34,312 INFO L354 Elim1Store]: treesize reduction 160, result has 22.0 percent of original size [2021-11-12 22:29:34,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 120 [2021-11-12 22:29:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:34,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:41,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-11-12 22:29:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:41,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:41,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884993739] [2021-11-12 22:29:41,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884993739] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:41,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:41,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 13 [2021-11-12 22:29:41,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717062328] [2021-11-12 22:29:41,158 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:41,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:29:41,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:41,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:29:41,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:29:41,159 INFO L87 Difference]: Start difference. First operand 281 states and 505 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2021-11-12 22:29:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:42,602 INFO L93 Difference]: Finished difference Result 276 states and 493 transitions. [2021-11-12 22:29:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:29:42,603 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) Word has length 25 [2021-11-12 22:29:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:42,605 INFO L225 Difference]: With dead ends: 276 [2021-11-12 22:29:42,605 INFO L226 Difference]: Without dead ends: 262 [2021-11-12 22:29:42,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:29:42,606 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 86 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 432.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 505.02ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:42,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 0 Invalid, 433 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [29 Valid, 265 Invalid, 0 Unknown, 139 Unchecked, 505.02ms Time] [2021-11-12 22:29:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-12 22:29:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 232. [2021-11-12 22:29:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 229 states have (on average 1.737991266375546) internal successors, (398), 231 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:29:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 398 transitions. [2021-11-12 22:29:42,613 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 398 transitions. Word has length 25 [2021-11-12 22:29:42,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:42,614 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 398 transitions. [2021-11-12 22:29:42,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2021-11-12 22:29:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 398 transitions. [2021-11-12 22:29:42,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:29:42,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:42,615 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:29:42,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:42,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:42,816 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:29:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1914206133, now seen corresponding path program 1 times [2021-11-12 22:29:42,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:42,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538571322] [2021-11-12 22:29:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:42,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:42,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:42,818 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:42,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:29:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:42,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:29:42,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:42,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2021-11-12 22:29:43,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:29:43,068 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:29:43,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:29:43,112 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:29:43,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-12 22:29:43,188 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:29:43,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 53 [2021-11-12 22:29:43,320 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 22:29:43,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 87 [2021-11-12 22:29:43,540 INFO L354 Elim1Store]: treesize reduction 255, result has 18.3 percent of original size [2021-11-12 22:29:43,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 127 [2021-11-12 22:29:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:43,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:30:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:30:15,434 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:30:15,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538571322] [2021-11-12 22:30:15,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538571322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:30:15,435 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:30:15,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 16 [2021-11-12 22:30:15,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720793108] [2021-11-12 22:30:15,435 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:30:15,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 22:30:15,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:30:15,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 22:30:15,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=188, Unknown=5, NotChecked=0, Total=272 [2021-11-12 22:30:15,437 INFO L87 Difference]: Start difference. First operand 232 states and 398 transitions. Second operand has 17 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 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) [2021-11-12 22:30:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:30:39,080 INFO L93 Difference]: Finished difference Result 293 states and 495 transitions. [2021-11-12 22:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:30:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 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) Word has length 26 [2021-11-12 22:30:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:30:39,083 INFO L225 Difference]: With dead ends: 293 [2021-11-12 22:30:39,083 INFO L226 Difference]: Without dead ends: 293 [2021-11-12 22:30:39,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=135, Invalid=361, Unknown=10, NotChecked=0, Total=506 [2021-11-12 22:30:39,084 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 106 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 861.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.10ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 975.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:30:39,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 19 Invalid, 574 Unknown, 0 Unchecked, 3.10ms Time], IncrementalHoareTripleChecker [43 Valid, 392 Invalid, 0 Unknown, 139 Unchecked, 975.50ms Time] [2021-11-12 22:30:39,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-12 22:30:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 230. [2021-11-12 22:30:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 227 states have (on average 1.7400881057268722) internal successors, (395), 229 states have internal predecessors, (395), 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) [2021-11-12 22:30:39,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 395 transitions. [2021-11-12 22:30:39,093 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 395 transitions. Word has length 26 [2021-11-12 22:30:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:30:39,094 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 395 transitions. [2021-11-12 22:30:39,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 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) [2021-11-12 22:30:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 395 transitions. [2021-11-12 22:30:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:30:39,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:30:39,095 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:30:39,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:30:39,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:30:39,308 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:30:39,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:30:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash -744464118, now seen corresponding path program 1 times [2021-11-12 22:30:39,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:30:39,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219933554] [2021-11-12 22:30:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:30:39,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:30:39,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:30:39,311 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:30:39,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:30:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:30:39,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:30:39,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:30:39,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2021-11-12 22:30:39,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:30:39,514 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:30:39,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:30:39,550 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:30:39,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-12 22:30:39,630 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:30:39,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 51 [2021-11-12 22:30:39,777 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:30:39,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 77 [2021-11-12 22:30:39,932 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:30:39,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 84 treesize of output 104 [2021-11-12 22:30:40,232 INFO L354 Elim1Store]: treesize reduction 350, result has 16.5 percent of original size [2021-11-12 22:30:40,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 155 [2021-11-12 22:30:40,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:30:40,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:30:54,403 WARN L227 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:31:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:31:11,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:31:11,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219933554] [2021-11-12 22:31:11,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219933554] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:31:11,768 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:31:11,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 18 [2021-11-12 22:31:11,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917522197] [2021-11-12 22:31:11,768 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:31:11,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 22:31:11,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:31:11,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 22:31:11,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=235, Unknown=4, NotChecked=0, Total=342 [2021-11-12 22:31:11,770 INFO L87 Difference]: Start difference. First operand 230 states and 395 transitions. Second operand has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 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) [2021-11-12 22:31:34,221 WARN L227 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:31:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:31:37,451 INFO L93 Difference]: Finished difference Result 325 states and 554 transitions. [2021-11-12 22:31:37,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:31:37,452 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 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) Word has length 27 [2021-11-12 22:31:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:31:37,454 INFO L225 Difference]: With dead ends: 325 [2021-11-12 22:31:37,454 INFO L226 Difference]: Without dead ends: 325 [2021-11-12 22:31:37,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=180, Invalid=462, Unknown=8, NotChecked=0, Total=650 [2021-11-12 22:31:37,455 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 116 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1145.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.03ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 323 IncrementalHoareTripleChecker+Unchecked, 1279.72ms IncrementalHoareTripleChecker+Time [2021-11-12 22:31:37,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 20 Invalid, 739 Unknown, 0 Unchecked, 6.03ms Time], IncrementalHoareTripleChecker [32 Valid, 384 Invalid, 0 Unknown, 323 Unchecked, 1279.72ms Time] [2021-11-12 22:31:37,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-12 22:31:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 236. [2021-11-12 22:31:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 233 states have (on average 1.738197424892704) internal successors, (405), 235 states have internal predecessors, (405), 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) [2021-11-12 22:31:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 405 transitions. [2021-11-12 22:31:37,462 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 405 transitions. Word has length 27 [2021-11-12 22:31:37,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:31:37,462 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 405 transitions. [2021-11-12 22:31:37,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 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) [2021-11-12 22:31:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 405 transitions. [2021-11-12 22:31:37,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:31:37,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:31:37,463 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:31:37,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:31:37,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:31:37,678 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:31:37,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:31:37,679 INFO L85 PathProgramCache]: Analyzing trace with hash 961986668, now seen corresponding path program 2 times [2021-11-12 22:31:37,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:31:37,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700689380] [2021-11-12 22:31:37,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:31:37,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:31:37,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:31:37,684 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:31:37,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 22:31:37,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:31:37,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:31:37,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 22:31:37,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:31:37,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2021-11-12 22:31:37,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:31:37,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-12 22:31:37,937 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:31:37,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2021-11-12 22:31:37,988 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:31:37,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 52 [2021-11-12 22:31:38,094 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:31:38,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 83 [2021-11-12 22:31:38,273 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:31:38,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 120 [2021-11-12 22:31:38,543 INFO L354 Elim1Store]: treesize reduction 350, result has 16.5 percent of original size [2021-11-12 22:31:38,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 134 treesize of output 166 [2021-11-12 22:31:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:31:38,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:31:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:31:54,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:31:54,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700689380] [2021-11-12 22:31:54,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700689380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:31:54,065 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:31:54,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 18 [2021-11-12 22:31:54,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749634843] [2021-11-12 22:31:54,066 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:31:54,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 22:31:54,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:31:54,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 22:31:54,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=237, Unknown=1, NotChecked=0, Total=342 [2021-11-12 22:31:54,067 INFO L87 Difference]: Start difference. First operand 236 states and 405 transitions. Second operand has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 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) [2021-11-12 22:32:06,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:06,999 INFO L93 Difference]: Finished difference Result 442 states and 718 transitions. [2021-11-12 22:32:07,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-12 22:32:07,000 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 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) Word has length 27 [2021-11-12 22:32:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:07,002 INFO L225 Difference]: With dead ends: 442 [2021-11-12 22:32:07,002 INFO L226 Difference]: Without dead ends: 410 [2021-11-12 22:32:07,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=361, Invalid=759, Unknown=2, NotChecked=0, Total=1122 [2021-11-12 22:32:07,003 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 138 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1634.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.06ms SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 153 IncrementalHoareTripleChecker+Unchecked, 1824.60ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:07,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 19 Invalid, 752 Unknown, 0 Unchecked, 3.06ms Time], IncrementalHoareTripleChecker [98 Valid, 501 Invalid, 0 Unknown, 153 Unchecked, 1824.60ms Time] [2021-11-12 22:32:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-12 22:32:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 226. [2021-11-12 22:32:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 223 states have (on average 1.704035874439462) internal successors, (380), 225 states have internal predecessors, (380), 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) [2021-11-12 22:32:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 380 transitions. [2021-11-12 22:32:07,011 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 380 transitions. Word has length 27 [2021-11-12 22:32:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:07,012 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 380 transitions. [2021-11-12 22:32:07,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 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) [2021-11-12 22:32:07,012 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 380 transitions. [2021-11-12 22:32:07,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:32:07,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:07,013 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:32:07,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:07,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:07,226 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1601733454, now seen corresponding path program 1 times [2021-11-12 22:32:07,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:07,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524775734] [2021-11-12 22:32:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:07,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:07,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:07,227 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:07,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:32:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:07,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:32:07,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:07,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:32:07,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:32:07,474 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:32:07,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:32:07,511 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:32:07,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-12 22:32:07,570 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:32:07,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 52 [2021-11-12 22:32:07,683 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:32:07,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 82 [2021-11-12 22:32:07,872 INFO L354 Elim1Store]: treesize reduction 82, result has 21.9 percent of original size [2021-11-12 22:32:07,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 109 [2021-11-12 22:32:08,098 INFO L354 Elim1Store]: treesize reduction 127, result has 21.6 percent of original size [2021-11-12 22:32:08,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 146 [2021-11-12 22:32:08,539 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:32:08,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 199 [2021-11-12 22:32:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:08,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:28,015 WARN L227 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:32:30,068 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1))))) (store .cse4 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse4 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse3 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))))))) is different from false [2021-11-12 22:32:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:30,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:30,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524775734] [2021-11-12 22:32:30,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524775734] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:30,122 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:30,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:32:30,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242276783] [2021-11-12 22:32:30,123 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:30,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:32:30,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:30,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:32:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=265, Unknown=1, NotChecked=36, Total=420 [2021-11-12 22:32:30,124 INFO L87 Difference]: Start difference. First operand 226 states and 380 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:32:51,508 WARN L227 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:32:57,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:57,320 INFO L93 Difference]: Finished difference Result 348 states and 572 transitions. [2021-11-12 22:32:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 22:32:57,321 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:32:57,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:57,323 INFO L225 Difference]: With dead ends: 348 [2021-11-12 22:32:57,323 INFO L226 Difference]: Without dead ends: 348 [2021-11-12 22:32:57,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=190, Invalid=511, Unknown=5, NotChecked=50, Total=756 [2021-11-12 22:32:57,324 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 121 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2462.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.86ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 251 IncrementalHoareTripleChecker+Unchecked, 2688.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:57,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 20 Invalid, 786 Unknown, 0 Unchecked, 2.86ms Time], IncrementalHoareTripleChecker [39 Valid, 496 Invalid, 0 Unknown, 251 Unchecked, 2688.97ms Time] [2021-11-12 22:32:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-12 22:32:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 227. [2021-11-12 22:32:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 224 states have (on average 1.7053571428571428) internal successors, (382), 226 states have internal predecessors, (382), 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) [2021-11-12 22:32:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 382 transitions. [2021-11-12 22:32:57,332 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 382 transitions. Word has length 28 [2021-11-12 22:32:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:57,333 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 382 transitions. [2021-11-12 22:32:57,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:32:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 382 transitions. [2021-11-12 22:32:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:32:57,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:57,334 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:32:57,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:57,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:57,548 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1603549744, now seen corresponding path program 2 times [2021-11-12 22:32:57,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:57,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206214681] [2021-11-12 22:32:57,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:32:57,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:57,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:57,550 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:57,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:32:57,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:32:57,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:32:57,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:32:57,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:57,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-12 22:32:57,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:32:57,788 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:32:57,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-12 22:32:57,863 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:32:57,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 47 [2021-11-12 22:32:57,969 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:32:57,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 68 [2021-11-12 22:32:58,147 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:32:58,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 97 [2021-11-12 22:32:58,379 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:32:58,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 117 treesize of output 137 [2021-11-12 22:32:58,667 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:32:58,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 150 treesize of output 170 [2021-11-12 22:32:59,131 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:32:59,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 183 treesize of output 221 [2021-11-12 22:32:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:59,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:15,159 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))))) is different from false [2021-11-12 22:33:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:15,193 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:15,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206214681] [2021-11-12 22:33:15,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206214681] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:33:15,194 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:33:15,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:33:15,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564276563] [2021-11-12 22:33:15,194 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:15,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:33:15,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:33:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=264, Unknown=1, NotChecked=36, Total=420 [2021-11-12 22:33:15,195 INFO L87 Difference]: Start difference. First operand 227 states and 382 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:33:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:43,960 INFO L93 Difference]: Finished difference Result 316 states and 532 transitions. [2021-11-12 22:33:43,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-12 22:33:43,961 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:33:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:43,963 INFO L225 Difference]: With dead ends: 316 [2021-11-12 22:33:43,963 INFO L226 Difference]: Without dead ends: 316 [2021-11-12 22:33:43,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=191, Invalid=510, Unknown=5, NotChecked=50, Total=756 [2021-11-12 22:33:43,964 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 65 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 786.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.42ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 224 IncrementalHoareTripleChecker+Unchecked, 874.81ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:43,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 28 Invalid, 443 Unknown, 0 Unchecked, 1.42ms Time], IncrementalHoareTripleChecker [13 Valid, 206 Invalid, 0 Unknown, 224 Unchecked, 874.81ms Time] [2021-11-12 22:33:43,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-12 22:33:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 238. [2021-11-12 22:33:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 235 states have (on average 1.6978723404255318) internal successors, (399), 237 states have internal predecessors, (399), 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) [2021-11-12 22:33:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 399 transitions. [2021-11-12 22:33:43,970 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 399 transitions. Word has length 28 [2021-11-12 22:33:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:43,971 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 399 transitions. [2021-11-12 22:33:43,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:33:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 399 transitions. [2021-11-12 22:33:43,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:33:43,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:43,972 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:33:43,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:44,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:44,185 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:33:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:44,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1557940684, now seen corresponding path program 3 times [2021-11-12 22:33:44,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:44,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130019782] [2021-11-12 22:33:44,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:33:44,186 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:44,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:44,187 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:44,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 22:33:44,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 22:33:44,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:33:44,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:33:44,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:44,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:33:44,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:33:44,403 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:33:44,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:33:44,439 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:33:44,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-12 22:33:44,497 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:33:44,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 51 [2021-11-12 22:33:44,606 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:33:44,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 72 treesize of output 86 [2021-11-12 22:33:44,775 INFO L354 Elim1Store]: treesize reduction 82, result has 21.9 percent of original size [2021-11-12 22:33:44,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 117 [2021-11-12 22:33:45,002 INFO L354 Elim1Store]: treesize reduction 127, result has 21.6 percent of original size [2021-11-12 22:33:45,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 138 treesize of output 161 [2021-11-12 22:33:45,460 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:33:45,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 201 treesize of output 239 [2021-11-12 22:33:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:33:45,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:34:01,391 WARN L227 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:34:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:34:17,171 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:34:17,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130019782] [2021-11-12 22:34:17,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130019782] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:34:17,171 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:34:17,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:34:17,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330147930] [2021-11-12 22:34:17,171 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:34:17,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:34:17,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:34:17,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:34:17,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=283, Unknown=6, NotChecked=0, Total=420 [2021-11-12 22:34:17,173 INFO L87 Difference]: Start difference. First operand 238 states and 399 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:34:19,628 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_ULTIMATE.start_main_~#i~0#1.base|)) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|)) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (store (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))))))))))))))) is different from false [2021-11-12 22:34:22,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:34:22,224 INFO L93 Difference]: Finished difference Result 394 states and 641 transitions. [2021-11-12 22:34:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-12 22:34:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:34:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:34:22,230 INFO L225 Difference]: With dead ends: 394 [2021-11-12 22:34:22,230 INFO L226 Difference]: Without dead ends: 394 [2021-11-12 22:34:22,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 34.3s TimeCoverageRelationStatistics Valid=254, Invalid=613, Unknown=7, NotChecked=56, Total=930 [2021-11-12 22:34:22,232 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 137 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2018.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.19ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 2248.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:34:22,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 1 Invalid, 731 Unknown, 0 Unchecked, 3.19ms Time], IncrementalHoareTripleChecker [74 Valid, 461 Invalid, 0 Unknown, 196 Unchecked, 2248.51ms Time] [2021-11-12 22:34:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-12 22:34:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 230. [2021-11-12 22:34:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 227 states have (on average 1.7092511013215859) internal successors, (388), 229 states have internal predecessors, (388), 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) [2021-11-12 22:34:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 388 transitions. [2021-11-12 22:34:22,242 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 388 transitions. Word has length 28 [2021-11-12 22:34:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:34:22,243 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 388 transitions. [2021-11-12 22:34:22,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:34:22,243 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 388 transitions. [2021-11-12 22:34:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:34:22,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:34:22,244 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:34:22,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:34:22,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:34:22,460 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:34:22,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:34:22,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1361547312, now seen corresponding path program 4 times [2021-11-12 22:34:22,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:34:22,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545624106] [2021-11-12 22:34:22,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:34:22,461 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:34:22,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:34:22,461 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:34:22,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 22:34:22,541 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:34:22,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:34:22,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:34:22,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:34:22,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2021-11-12 22:34:22,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:34:22,676 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:34:22,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:34:22,718 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:34:22,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-12 22:34:22,805 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:34:22,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-11-12 22:34:22,909 INFO L354 Elim1Store]: treesize reduction 50, result has 16.7 percent of original size [2021-11-12 22:34:22,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 72 [2021-11-12 22:34:23,091 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:34:23,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 108 [2021-11-12 22:34:23,313 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:34:23,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 126 treesize of output 146 [2021-11-12 22:34:23,730 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:34:23,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 175 treesize of output 213 [2021-11-12 22:34:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:34:24,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:34:45,730 WARN L227 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:35:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:09,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:09,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545624106] [2021-11-12 22:35:09,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545624106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:09,463 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:09,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:35:09,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851528952] [2021-11-12 22:35:09,464 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:09,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:35:09,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:35:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=290, Unknown=3, NotChecked=0, Total=420 [2021-11-12 22:35:09,466 INFO L87 Difference]: Start difference. First operand 230 states and 388 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:35:38,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:38,849 INFO L93 Difference]: Finished difference Result 321 states and 552 transitions. [2021-11-12 22:35:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-12 22:35:38,849 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:35:38,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:38,851 INFO L225 Difference]: With dead ends: 321 [2021-11-12 22:35:38,852 INFO L226 Difference]: Without dead ends: 321 [2021-11-12 22:35:38,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 74.7s TimeCoverageRelationStatistics Valid=183, Invalid=511, Unknown=8, NotChecked=0, Total=702 [2021-11-12 22:35:38,853 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 56 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 268.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 117 IncrementalHoareTripleChecker+Unchecked, 307.23ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:38,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 28 Invalid, 203 Unknown, 0 Unchecked, 0.71ms Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 117 Unchecked, 307.23ms Time] [2021-11-12 22:35:38,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-12 22:35:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 238. [2021-11-12 22:35:38,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 235 states have (on average 1.7063829787234042) internal successors, (401), 237 states have internal predecessors, (401), 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) [2021-11-12 22:35:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 401 transitions. [2021-11-12 22:35:38,860 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 401 transitions. Word has length 28 [2021-11-12 22:35:38,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:38,860 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 401 transitions. [2021-11-12 22:35:38,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:35:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 401 transitions. [2021-11-12 22:35:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:35:38,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:38,861 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:35:38,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:39,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:35:39,062 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:35:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash -350849934, now seen corresponding path program 5 times [2021-11-12 22:35:39,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:35:39,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210765268] [2021-11-12 22:35:39,063 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 22:35:39,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:35:39,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:35:39,064 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:35:39,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 22:35:39,173 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:35:39,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:35:39,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:35:39,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:39,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-11-12 22:35:39,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:35:39,318 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:35:39,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:35:39,395 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 22:35:39,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 39 [2021-11-12 22:35:39,480 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-12 22:35:39,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2021-11-12 22:35:39,596 INFO L354 Elim1Store]: treesize reduction 50, result has 16.7 percent of original size [2021-11-12 22:35:39,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 82 [2021-11-12 22:35:39,761 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:35:39,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 94 treesize of output 114 [2021-11-12 22:35:39,971 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:35:39,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 150 [2021-11-12 22:35:40,360 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:35:40,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 169 treesize of output 207 [2021-11-12 22:35:40,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:40,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:56,532 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32))))))))))) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse5 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse5 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse4 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse3 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse3 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))))) is different from false [2021-11-12 22:35:58,587 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))))) is different from false [2021-11-12 22:35:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:58,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:35:58,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210765268] [2021-11-12 22:35:58,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210765268] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:58,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:58,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:35:58,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537509478] [2021-11-12 22:35:58,622 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:58,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:35:58,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:35:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:35:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=240, Unknown=3, NotChecked=70, Total=420 [2021-11-12 22:35:58,623 INFO L87 Difference]: Start difference. First operand 238 states and 401 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:36:00,972 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_ULTIMATE.start_main_~#i~0#1.base|)) (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|)))))))))) (not (= |c_ULTIMATE.start_main_~#id~0#1.base| |c_t_funThread1of1ForFork0_#in~arg.base|))) is different from false [2021-11-12 22:36:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:36:10,798 INFO L93 Difference]: Finished difference Result 347 states and 567 transitions. [2021-11-12 22:36:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 22:36:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:36:10,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:36:10,801 INFO L225 Difference]: With dead ends: 347 [2021-11-12 22:36:10,802 INFO L226 Difference]: Without dead ends: 347 [2021-11-12 22:36:10,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=165, Invalid=442, Unknown=5, NotChecked=144, Total=756 [2021-11-12 22:36:10,803 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 92 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 907.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 160 IncrementalHoareTripleChecker+Unchecked, 1006.08ms IncrementalHoareTripleChecker+Time [2021-11-12 22:36:10,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 2 Invalid, 466 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [29 Valid, 277 Invalid, 0 Unknown, 160 Unchecked, 1006.08ms Time] [2021-11-12 22:36:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-11-12 22:36:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 242. [2021-11-12 22:36:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.707112970711297) internal successors, (408), 241 states have internal predecessors, (408), 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) [2021-11-12 22:36:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 408 transitions. [2021-11-12 22:36:10,811 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 408 transitions. Word has length 28 [2021-11-12 22:36:10,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:36:10,812 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 408 transitions. [2021-11-12 22:36:10,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:36:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 408 transitions. [2021-11-12 22:36:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:36:10,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:36:10,813 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:36:10,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-12 22:36:11,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:36:11,025 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:36:11,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:36:11,026 INFO L85 PathProgramCache]: Analyzing trace with hash -243182930, now seen corresponding path program 6 times [2021-11-12 22:36:11,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:36:11,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564803549] [2021-11-12 22:36:11,026 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-12 22:36:11,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:36:11,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:36:11,027 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:36:11,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 22:36:11,103 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-12 22:36:11,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:36:11,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:36:11,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:36:11,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-12 22:36:11,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:36:11,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-12 22:36:11,253 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:36:11,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2021-11-12 22:36:11,327 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:36:11,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 63 [2021-11-12 22:36:11,452 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:36:11,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 89 [2021-11-12 22:36:11,652 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:36:11,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 110 treesize of output 130 [2021-11-12 22:36:11,937 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:36:11,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 153 treesize of output 173 [2021-11-12 22:36:12,409 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:36:12,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 188 treesize of output 226 [2021-11-12 22:36:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:36:12,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:36:18,304 WARN L838 $PredicateComparison]: unable to prove that (forall ((t_funThread1of1ForFork0_~p~0.offset (_ BitVec 32))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (let ((.cse3 (store |c_#race| c_t_funThread1of1ForFork0_~p~0.base (store (select |c_#race| c_t_funThread1of1ForFork0_~p~0.base) t_funThread1of1ForFork0_~p~0.offset (_ bv0 1))))) (store .cse3 |c_ULTIMATE.start_main_~#id~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd |c_ULTIMATE.start_main_~#id~0#1.offset| (_ bv1 32)) (_ bv0 1)))))) (store .cse2 c_t_funThread1of1ForFork0_~p~0.base (store (select .cse2 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv1 32)) (_ bv0 1)))))) (store .cse1 |c_ULTIMATE.start_main_~#id~0#1.base| (store (store (select .cse1 |c_ULTIMATE.start_main_~#id~0#1.base|) (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)) (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~#id~0#1.offset|) (_ bv0 1)))))) (store .cse0 c_t_funThread1of1ForFork0_~p~0.base (store (store (select .cse0 c_t_funThread1of1ForFork0_~p~0.base) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv2 32)) (_ bv0 1)) (bvadd t_funThread1of1ForFork0_~p~0.offset (_ bv3 32)) (_ bv0 1)))) |c_ULTIMATE.start_main_~#id~0#1.base|) |c_ULTIMATE.start_main_~#id~0#1.offset|))))))) is different from false [2021-11-12 22:36:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:36:18,340 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:36:18,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564803549] [2021-11-12 22:36:18,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564803549] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:36:18,340 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:36:18,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:36:18,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875424496] [2021-11-12 22:36:18,341 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:36:18,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:36:18,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:36:18,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:36:18,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=262, Unknown=1, NotChecked=36, Total=420 [2021-11-12 22:36:18,342 INFO L87 Difference]: Start difference. First operand 242 states and 408 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:36:46,215 WARN L227 SmtUtils]: Spent 9.55s on a formula simplification. DAG size of input: 68 DAG size of output: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:37:14,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:14,738 INFO L93 Difference]: Finished difference Result 366 states and 588 transitions. [2021-11-12 22:37:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-12 22:37:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:37:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:14,741 INFO L225 Difference]: With dead ends: 366 [2021-11-12 22:37:14,741 INFO L226 Difference]: Without dead ends: 366 [2021-11-12 22:37:14,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 9 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 60.0s TimeCoverageRelationStatistics Valid=402, Invalid=851, Unknown=11, NotChecked=68, Total=1332 [2021-11-12 22:37:14,742 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 131 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1977.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 240 IncrementalHoareTripleChecker+Unchecked, 2176.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:14,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 19 Invalid, 739 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [87 Valid, 412 Invalid, 0 Unknown, 240 Unchecked, 2176.51ms Time] [2021-11-12 22:37:14,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-12 22:37:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 229. [2021-11-12 22:37:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 226 states have (on average 1.7035398230088497) internal successors, (385), 228 states have internal predecessors, (385), 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) [2021-11-12 22:37:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 385 transitions. [2021-11-12 22:37:14,749 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 385 transitions. Word has length 28 [2021-11-12 22:37:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:14,749 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 385 transitions. [2021-11-12 22:37:14,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:37:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 385 transitions. [2021-11-12 22:37:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:37:14,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:14,750 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:37:14,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:14,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:14,964 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:37:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:14,964 INFO L85 PathProgramCache]: Analyzing trace with hash -197573870, now seen corresponding path program 7 times [2021-11-12 22:37:14,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:14,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788826276] [2021-11-12 22:37:14,964 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 22:37:14,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:14,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:14,965 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:14,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 22:37:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:15,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:37:15,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:15,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2021-11-12 22:37:15,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:37:15,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-12 22:37:15,193 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:37:15,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2021-11-12 22:37:15,259 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:37:15,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 51 [2021-11-12 22:37:15,381 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:37:15,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 78 [2021-11-12 22:37:15,522 INFO L354 Elim1Store]: treesize reduction 82, result has 21.9 percent of original size [2021-11-12 22:37:15,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 107 [2021-11-12 22:37:15,733 INFO L354 Elim1Store]: treesize reduction 127, result has 21.6 percent of original size [2021-11-12 22:37:15,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 134 treesize of output 157 [2021-11-12 22:37:16,200 INFO L354 Elim1Store]: treesize reduction 457, result has 15.1 percent of original size [2021-11-12 22:37:16,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 189 treesize of output 227 [2021-11-12 22:37:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:16,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:30,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:30,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788826276] [2021-11-12 22:37:30,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788826276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:37:30,170 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:37:30,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 20 [2021-11-12 22:37:30,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835609555] [2021-11-12 22:37:30,170 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:30,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:37:30,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:30,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:37:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=288, Unknown=1, NotChecked=0, Total=420 [2021-11-12 22:37:30,171 INFO L87 Difference]: Start difference. First operand 229 states and 385 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:37:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:44,590 INFO L93 Difference]: Finished difference Result 343 states and 549 transitions. [2021-11-12 22:37:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-12 22:37:44,591 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) Word has length 28 [2021-11-12 22:37:44,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:44,592 INFO L225 Difference]: With dead ends: 343 [2021-11-12 22:37:44,593 INFO L226 Difference]: Without dead ends: 313 [2021-11-12 22:37:44,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=483, Invalid=996, Unknown=3, NotChecked=0, Total=1482 [2021-11-12 22:37:44,594 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 142 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2041.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.95ms SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 292 IncrementalHoareTripleChecker+Unchecked, 2255.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:44,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 19 Invalid, 831 Unknown, 0 Unchecked, 2.95ms Time], IncrementalHoareTripleChecker [108 Valid, 431 Invalid, 0 Unknown, 292 Unchecked, 2255.97ms Time] [2021-11-12 22:37:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-12 22:37:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 205. [2021-11-12 22:37:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 202 states have (on average 1.7227722772277227) internal successors, (348), 204 states have internal predecessors, (348), 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) [2021-11-12 22:37:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 348 transitions. [2021-11-12 22:37:44,601 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 348 transitions. Word has length 28 [2021-11-12 22:37:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:44,602 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 348 transitions. [2021-11-12 22:37:44,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2021-11-12 22:37:44,602 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 348 transitions. [2021-11-12 22:37:44,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 22:37:44,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:44,603 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:37:44,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-11-12 22:37:44,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:44,816 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:37:44,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:44,816 INFO L85 PathProgramCache]: Analyzing trace with hash 574417795, now seen corresponding path program 1 times [2021-11-12 22:37:44,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:44,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186321270] [2021-11-12 22:37:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:44,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:44,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:44,817 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:44,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 22:37:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:44,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:37:44,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:44,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2021-11-12 22:37:44,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:37:45,026 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:37:45,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:37:45,063 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:37:45,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-12 22:37:45,146 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:37:45,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 50 [2021-11-12 22:37:45,273 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:37:45,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 78 [2021-11-12 22:37:45,465 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:37:45,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 86 treesize of output 106 [2021-11-12 22:37:45,684 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:37:45,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 111 treesize of output 131 [2021-11-12 22:37:46,001 INFO L354 Elim1Store]: treesize reduction 161, result has 17.9 percent of original size [2021-11-12 22:37:46,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 134 treesize of output 160 [2021-11-12 22:37:47,028 INFO L354 Elim1Store]: treesize reduction 531, result has 13.5 percent of original size [2021-11-12 22:37:47,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 188 treesize of output 222 [2021-11-12 22:37:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:47,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:38:22,647 WARN L227 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:38:44,126 WARN L227 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 102 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:38:44,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:38:44,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:38:44,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:38:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:44,207 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:38:44,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186321270] [2021-11-12 22:38:44,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186321270] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:38:44,208 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:38:44,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 21 [2021-11-12 22:38:44,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18495167] [2021-11-12 22:38:44,208 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:38:44,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:38:44,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:38:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:38:44,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=349, Unknown=11, NotChecked=0, Total=506 [2021-11-12 22:38:44,209 INFO L87 Difference]: Start difference. First operand 205 states and 348 transitions. Second operand has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 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) [2021-11-12 22:38:45,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:38:45,443 INFO L93 Difference]: Finished difference Result 275 states and 453 transitions. [2021-11-12 22:38:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:38:45,443 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 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) Word has length 31 [2021-11-12 22:38:45,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:38:45,445 INFO L225 Difference]: With dead ends: 275 [2021-11-12 22:38:45,445 INFO L226 Difference]: Without dead ends: 275 [2021-11-12 22:38:45,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 58.1s TimeCoverageRelationStatistics Valid=311, Invalid=734, Unknown=11, NotChecked=0, Total=1056 [2021-11-12 22:38:45,446 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 82 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 323 IncrementalHoareTripleChecker+Unchecked, 181.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:38:45,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 12 Invalid, 416 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 323 Unchecked, 181.07ms Time] [2021-11-12 22:38:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-12 22:38:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 215. [2021-11-12 22:38:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 212 states have (on average 1.7169811320754718) internal successors, (364), 214 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:38:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 364 transitions. [2021-11-12 22:38:45,463 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 364 transitions. Word has length 31 [2021-11-12 22:38:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:38:45,463 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 364 transitions. [2021-11-12 22:38:45,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 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) [2021-11-12 22:38:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 364 transitions. [2021-11-12 22:38:45,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 22:38:45,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:38:45,465 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:38:45,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:38:45,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:38:45,678 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:38:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:38:45,678 INFO L85 PathProgramCache]: Analyzing trace with hash 636414385, now seen corresponding path program 2 times [2021-11-12 22:38:45,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:38:45,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002868382] [2021-11-12 22:38:45,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:38:45,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:38:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:38:45,680 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:38:45,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:38:45,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:38:45,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:38:45,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:38:45,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:38:45,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2021-11-12 22:38:45,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:38:45,974 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:38:45,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2021-11-12 22:38:46,054 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:38:46,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2021-11-12 22:38:46,181 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:38:46,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 63 [2021-11-12 22:38:46,391 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:38:46,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 92 [2021-11-12 22:38:46,617 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:38:46,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 105 treesize of output 125 [2021-11-12 22:38:46,899 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:38:46,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 136 treesize of output 156 [2021-11-12 22:38:47,683 INFO L354 Elim1Store]: treesize reduction 408, result has 14.8 percent of original size [2021-11-12 22:38:47,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 173 treesize of output 201 [2021-11-12 22:38:48,606 INFO L354 Elim1Store]: treesize reduction 362, result has 16.4 percent of original size [2021-11-12 22:38:48,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 187 treesize of output 219 [2021-11-12 22:38:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:38:49,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:39:33,677 WARN L227 SmtUtils]: Spent 14.52s on a formula simplification. DAG size of input: 136 DAG size of output: 33 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:39:33,677 INFO L354 Elim1Store]: treesize reduction 1069, result has 4.6 percent of original size [2021-11-12 22:39:33,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 247 treesize of output 74 [2021-11-12 22:39:33,694 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:39:33,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 55 [2021-11-12 22:39:33,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:33,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:39:33,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002868382] [2021-11-12 22:39:33,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002868382] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:39:33,781 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:39:33,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 21 [2021-11-12 22:39:33,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765991228] [2021-11-12 22:39:33,781 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:39:33,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:39:33,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:39:33,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:39:33,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=368, Unknown=3, NotChecked=0, Total=506 [2021-11-12 22:39:33,783 INFO L87 Difference]: Start difference. First operand 215 states and 364 transitions. Second operand has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 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) [2021-11-12 22:39:44,869 WARN L227 SmtUtils]: Spent 10.22s on a formula simplification. DAG size of input: 89 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:39:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:39:52,841 INFO L93 Difference]: Finished difference Result 243 states and 402 transitions. [2021-11-12 22:39:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-12 22:39:52,842 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 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) Word has length 31 [2021-11-12 22:39:52,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:39:52,843 INFO L225 Difference]: With dead ends: 243 [2021-11-12 22:39:52,843 INFO L226 Difference]: Without dead ends: 243 [2021-11-12 22:39:52,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 49.6s TimeCoverageRelationStatistics Valid=348, Invalid=978, Unknown=6, NotChecked=0, Total=1332 [2021-11-12 22:39:52,844 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 68 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 237.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 272 IncrementalHoareTripleChecker+Unchecked, 270.60ms IncrementalHoareTripleChecker+Time [2021-11-12 22:39:52,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 20 Invalid, 397 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 272 Unchecked, 270.60ms Time] [2021-11-12 22:39:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-12 22:39:52,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 224. [2021-11-12 22:39:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.7285067873303168) internal successors, (382), 223 states have internal predecessors, (382), 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) [2021-11-12 22:39:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 382 transitions. [2021-11-12 22:39:52,850 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 382 transitions. Word has length 31 [2021-11-12 22:39:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:39:52,851 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 382 transitions. [2021-11-12 22:39:52,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 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) [2021-11-12 22:39:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 382 transitions. [2021-11-12 22:39:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 22:39:52,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:39:52,852 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:39:52,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:39:53,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:39:53,080 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:39:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:39:53,080 INFO L85 PathProgramCache]: Analyzing trace with hash 636315805, now seen corresponding path program 3 times [2021-11-12 22:39:53,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:39:53,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903181295] [2021-11-12 22:39:53,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:39:53,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:39:53,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:39:53,082 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:39:53,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-12 22:39:53,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 22:39:53,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:39:53,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:39:53,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:39:53,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-12 22:39:53,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:39:53,302 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:39:53,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:39:53,343 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:39:53,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-12 22:39:53,408 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:39:53,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 48 [2021-11-12 22:39:53,530 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:39:53,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 75 [2021-11-12 22:39:53,700 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:39:53,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 84 treesize of output 104 [2021-11-12 22:39:53,955 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:39:53,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 115 treesize of output 135 [2021-11-12 22:39:54,540 INFO L354 Elim1Store]: treesize reduction 161, result has 17.9 percent of original size [2021-11-12 22:39:54,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 135 treesize of output 161 [2021-11-12 22:39:55,053 INFO L354 Elim1Store]: treesize reduction 531, result has 13.5 percent of original size [2021-11-12 22:39:55,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 173 treesize of output 207 [2021-11-12 22:39:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:39:55,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:28,760 WARN L227 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 76 DAG size of output: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 22:40:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:29,750 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:29,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903181295] [2021-11-12 22:40:29,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903181295] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:29,751 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:29,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 20 [2021-11-12 22:40:29,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300732947] [2021-11-12 22:40:29,751 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:29,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-12 22:40:29,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:29,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-12 22:40:29,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=318, Unknown=9, NotChecked=0, Total=462 [2021-11-12 22:40:29,752 INFO L87 Difference]: Start difference. First operand 224 states and 382 transitions. Second operand has 22 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 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) [2021-11-12 22:40:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:31,464 INFO L93 Difference]: Finished difference Result 288 states and 472 transitions. [2021-11-12 22:40:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 22:40:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 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) Word has length 31 [2021-11-12 22:40:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:31,466 INFO L225 Difference]: With dead ends: 288 [2021-11-12 22:40:31,466 INFO L226 Difference]: Without dead ends: 288 [2021-11-12 22:40:31,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=313, Invalid=734, Unknown=9, NotChecked=0, Total=1056 [2021-11-12 22:40:31,467 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 86 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 499.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 322 IncrementalHoareTripleChecker+Unchecked, 578.72ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:31,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 10 Invalid, 623 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [21 Valid, 280 Invalid, 0 Unknown, 322 Unchecked, 578.72ms Time] [2021-11-12 22:40:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-12 22:40:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 226. [2021-11-12 22:40:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 223 states have (on average 1.7309417040358743) internal successors, (386), 225 states have internal predecessors, (386), 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) [2021-11-12 22:40:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 386 transitions. [2021-11-12 22:40:31,479 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 386 transitions. Word has length 31 [2021-11-12 22:40:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:31,479 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 386 transitions. [2021-11-12 22:40:31,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 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) [2021-11-12 22:40:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 386 transitions. [2021-11-12 22:40:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 22:40:31,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:31,481 INFO L514 BasicCegarLoop]: 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] [2021-11-12 22:40:31,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:31,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:31,710 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:40:31,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash 633403975, now seen corresponding path program 4 times [2021-11-12 22:40:31,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:31,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134031542] [2021-11-12 22:40:31,711 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:40:31,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:31,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:31,712 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:31,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb6b8d4a-6c36-4236-b2b0-d43e6e8269b5/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 22:40:31,805 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:40:31,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:40:31,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:40:31,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:31,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2021-11-12 22:40:31,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 22:40:31,958 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 22:40:31,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23 [2021-11-12 22:40:31,998 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-12 22:40:31,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-12 22:40:32,057 INFO L354 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2021-11-12 22:40:32,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 53 [2021-11-12 22:40:32,181 INFO L354 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2021-11-12 22:40:32,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 65 treesize of output 79 [2021-11-12 22:40:32,339 INFO L354 Elim1Store]: treesize reduction 105, result has 25.0 percent of original size [2021-11-12 22:40:32,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 91 treesize of output 111 [2021-11-12 22:40:32,569 INFO L354 Elim1Store]: treesize reduction 116, result has 16.5 percent of original size [2021-11-12 22:40:32,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 125 treesize of output 145 [2021-11-12 22:40:33,010 INFO L354 Elim1Store]: treesize reduction 161, result has 17.9 percent of original size [2021-11-12 22:40:33,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 155 treesize of output 181 [2021-11-12 22:40:33,724 INFO L354 Elim1Store]: treesize reduction 531, result has 13.5 percent of original size [2021-11-12 22:40:33,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 194 treesize of output 228 [2021-11-12 22:40:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:34,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:06,972 WARN L227 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)