./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 01:01:09,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 01:01:09,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 01:01:09,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 01:01:09,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 01:01:09,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 01:01:09,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 01:01:09,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 01:01:09,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 01:01:09,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 01:01:09,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 01:01:09,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 01:01:09,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 01:01:09,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 01:01:09,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 01:01:09,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 01:01:09,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 01:01:09,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 01:01:09,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 01:01:09,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 01:01:09,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 01:01:09,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 01:01:09,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 01:01:09,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 01:01:09,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 01:01:09,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 01:01:09,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 01:01:09,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 01:01:09,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 01:01:09,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 01:01:09,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 01:01:09,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 01:01:09,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 01:01:09,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 01:01:09,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 01:01:09,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 01:01:09,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 01:01:09,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 01:01:09,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 01:01:09,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 01:01:09,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 01:01:09,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 01:01:09,196 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 01:01:09,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 01:01:09,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 01:01:09,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 01:01:09,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 01:01:09,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 01:01:09,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 01:01:09,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 01:01:09,200 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 01:01:09,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 01:01:09,201 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 01:01:09,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 01:01:09,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 01:01:09,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 01:01:09,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 01:01:09,202 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 01:01:09,202 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 01:01:09,202 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 01:01:09,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 01:01:09,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 01:01:09,203 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 01:01:09,203 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 01:01:09,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 01:01:09,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 01:01:09,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 01:01:09,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 01:01:09,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 01:01:09,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 01:01:09,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 01:01:09,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 01:01:09,205 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 01:01:09,205 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 01:01:09,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 01:01:09,206 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 01:01:09,206 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 01:01:09,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 01:01:09,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 01:01:09,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 01:01:09,569 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 01:01:09,570 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 01:01:09,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-09-01 01:01:10,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 01:01:11,175 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 01:01:11,176 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-09-01 01:01:11,205 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fafff451c/09d414587e6d4ac8ae66db23ef3e9afc/FLAG5463f26d2 [2023-09-01 01:01:11,217 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fafff451c/09d414587e6d4ac8ae66db23ef3e9afc [2023-09-01 01:01:11,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 01:01:11,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 01:01:11,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 01:01:11,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 01:01:11,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 01:01:11,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 01:01:11" (1/1) ... [2023-09-01 01:01:11,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1c2960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:11, skipping insertion in model container [2023-09-01 01:01:11,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 01:01:11" (1/1) ... [2023-09-01 01:01:11,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 01:01:11,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 01:01:11,647 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2023-09-01 01:01:11,663 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:11,663 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:11,664 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:11,665 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:11,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 01:01:11,731 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-09-01 01:01:11,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6805529b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:11, skipping insertion in model container [2023-09-01 01:01:11,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 01:01:11,732 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-09-01 01:01:11,734 INFO L158 Benchmark]: Toolchain (without parser) took 511.55ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 52.4MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 01:01:11,734 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 01:01:11,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.33ms. Allocated memory is still 92.3MB. Free memory was 68.0MB in the beginning and 52.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 01:01:11,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.33ms. Allocated memory is still 92.3MB. Free memory was 68.0MB in the beginning and 52.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1058]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 01:01:13,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 01:01:13,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 01:01:13,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 01:01:13,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 01:01:13,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 01:01:13,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 01:01:13,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 01:01:13,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 01:01:13,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 01:01:13,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 01:01:13,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 01:01:13,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 01:01:13,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 01:01:13,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 01:01:13,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 01:01:13,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 01:01:13,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 01:01:13,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 01:01:13,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 01:01:13,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 01:01:13,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 01:01:13,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 01:01:13,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 01:01:13,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 01:01:13,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 01:01:13,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 01:01:13,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 01:01:13,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 01:01:13,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 01:01:13,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 01:01:13,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 01:01:13,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 01:01:13,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 01:01:13,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 01:01:13,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 01:01:13,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 01:01:13,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 01:01:13,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 01:01:13,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 01:01:13,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 01:01:13,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-09-01 01:01:13,433 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 01:01:13,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 01:01:13,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 01:01:13,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 01:01:13,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 01:01:13,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 01:01:13,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 01:01:13,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 01:01:13,436 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 01:01:13,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 01:01:13,436 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 01:01:13,436 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 01:01:13,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 01:01:13,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 01:01:13,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 01:01:13,437 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 01:01:13,437 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 01:01:13,437 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 01:01:13,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 01:01:13,438 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 01:01:13,438 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-09-01 01:01:13,438 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-09-01 01:01:13,438 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 01:01:13,438 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 01:01:13,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 01:01:13,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 01:01:13,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 01:01:13,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 01:01:13,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 01:01:13,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 01:01:13,440 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-09-01 01:01:13,440 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-09-01 01:01:13,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 01:01:13,440 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 01:01:13,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 01:01:13,441 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-09-01 01:01:13,441 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 01:01:13,441 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 01:01:13,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 01:01:13,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 01:01:13,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 01:01:13,760 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 01:01:13,760 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 01:01:13,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-09-01 01:01:15,012 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 01:01:15,291 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 01:01:15,292 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-09-01 01:01:15,308 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf482d39/576ae0501b8e488e9777f4d106567ac2/FLAG1c7f3fe61 [2023-09-01 01:01:15,319 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf482d39/576ae0501b8e488e9777f4d106567ac2 [2023-09-01 01:01:15,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 01:01:15,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 01:01:15,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 01:01:15,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 01:01:15,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 01:01:15,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 01:01:15" (1/1) ... [2023-09-01 01:01:15,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5c8a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:15, skipping insertion in model container [2023-09-01 01:01:15,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 01:01:15" (1/1) ... [2023-09-01 01:01:15,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 01:01:15,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 01:01:15,739 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2023-09-01 01:01:15,756 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,756 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,757 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,757 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 01:01:15,798 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-09-01 01:01:15,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 01:01:15,843 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2023-09-01 01:01:15,847 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,848 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,849 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,850 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 01:01:15,871 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 01:01:15,920 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2023-09-01 01:01:15,923 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,923 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,923 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,923 WARN L1562 CHandler]: Possible shadowing of function new [2023-09-01 01:01:15,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 01:01:16,008 INFO L208 MainTranslator]: Completed translation [2023-09-01 01:01:16,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16 WrapperNode [2023-09-01 01:01:16,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 01:01:16,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 01:01:16,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 01:01:16,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 01:01:16,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,065 INFO L138 Inliner]: procedures = 283, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 224 [2023-09-01 01:01:16,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 01:01:16,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 01:01:16,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 01:01:16,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 01:01:16,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 01:01:16,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 01:01:16,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 01:01:16,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 01:01:16,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (1/1) ... [2023-09-01 01:01:16,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 01:01:16,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 01:01:16,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 01:01:16,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 01:01:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-09-01 01:01:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 01:01:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-01 01:01:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 01:01:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-09-01 01:01:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-09-01 01:01:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-09-01 01:01:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 01:01:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 01:01:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 01:01:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 01:01:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 01:01:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 01:01:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 01:01:16,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 01:01:16,176 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 01:01:16,390 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 01:01:16,392 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 01:01:17,033 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 01:01:17,040 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 01:01:17,040 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-09-01 01:01:17,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 01:01:17 BoogieIcfgContainer [2023-09-01 01:01:17,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 01:01:17,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 01:01:17,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 01:01:17,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 01:01:17,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 01:01:15" (1/3) ... [2023-09-01 01:01:17,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feeab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 01:01:17, skipping insertion in model container [2023-09-01 01:01:17,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 01:01:16" (2/3) ... [2023-09-01 01:01:17,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feeab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 01:01:17, skipping insertion in model container [2023-09-01 01:01:17,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 01:01:17" (3/3) ... [2023-09-01 01:01:17,050 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-09-01 01:01:17,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 01:01:17,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-09-01 01:01:17,065 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 01:01:17,145 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 01:01:17,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 279 transitions, 566 flow [2023-09-01 01:01:17,305 INFO L130 PetriNetUnfolder]: 29/302 cut-off events. [2023-09-01 01:01:17,306 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-09-01 01:01:17,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 302 events. 29/302 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 856 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 168. Up to 4 conditions per place. [2023-09-01 01:01:17,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 279 transitions, 566 flow [2023-09-01 01:01:17,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 250 transitions, 505 flow [2023-09-01 01:01:17,332 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 01:01:17,345 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 250 transitions, 505 flow [2023-09-01 01:01:17,347 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 250 transitions, 505 flow [2023-09-01 01:01:17,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 250 transitions, 505 flow [2023-09-01 01:01:17,401 INFO L130 PetriNetUnfolder]: 28/273 cut-off events. [2023-09-01 01:01:17,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 01:01:17,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 273 events. 28/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 654 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 144. Up to 4 conditions per place. [2023-09-01 01:01:17,410 INFO L119 LiptonReduction]: Number of co-enabled transitions 5742 [2023-09-01 01:02:28,407 WARN L222 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 166 DAG size of output: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 01:02:39,894 WARN L222 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 166 DAG size of output: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 01:05:34,908 WARN L222 SmtUtils]: Spent 2.83m on a formula simplification. DAG size of input: 232 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 01:06:52,239 WARN L222 SmtUtils]: Spent 1.29m on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 01:10:24,211 WARN L222 SmtUtils]: Spent 3.53m on a formula simplification. DAG size of input: 232 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 01:11:56,162 WARN L222 SmtUtils]: Spent 1.53m on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 01:11:56,180 INFO L134 LiptonReduction]: Checked pairs total: 6481 [2023-09-01 01:11:56,180 INFO L136 LiptonReduction]: Total number of compositions: 259 [2023-09-01 01:11:56,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 01:11:56,197 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19862b81, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 01:11:56,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 01:11:56,206 INFO L130 PetriNetUnfolder]: 3/29 cut-off events. [2023-09-01 01:11:56,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 01:11:56,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:11:56,207 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-09-01 01:11:56,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:11:56,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:11:56,212 INFO L85 PathProgramCache]: Analyzing trace with hash -82218239, now seen corresponding path program 1 times [2023-09-01 01:11:56,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:11:56,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866504032] [2023-09-01 01:11:56,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 01:11:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:11:56,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:11:56,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:11:56,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-09-01 01:11:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 01:11:56,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-09-01 01:11:56,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 01:11:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-01 01:11:56,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 01:11:56,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 01:11:56,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866504032] [2023-09-01 01:11:56,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866504032] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 01:11:56,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 01:11:56,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 01:11:56,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50712376] [2023-09-01 01:11:56,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 01:11:56,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 01:11:56,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 01:11:56,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 01:11:56,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 01:11:56,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 538 [2023-09-01 01:11:56,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 56 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:56,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 01:11:56,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 538 [2023-09-01 01:11:56,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 01:11:57,465 INFO L130 PetriNetUnfolder]: 167/395 cut-off events. [2023-09-01 01:11:57,465 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 01:11:57,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 395 events. 167/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1887 event pairs, 140 based on Foata normal form. 24/202 useless extension candidates. Maximal degree in co-relation 702. Up to 336 conditions per place. [2023-09-01 01:11:57,468 INFO L137 encePairwiseOnDemand]: 522/538 looper letters, 36 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2023-09-01 01:11:57,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 173 flow [2023-09-01 01:11:57,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 01:11:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 01:11:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 808 transitions. [2023-09-01 01:11:57,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5006195786864932 [2023-09-01 01:11:57,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 808 transitions. [2023-09-01 01:11:57,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 808 transitions. [2023-09-01 01:11:57,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 01:11:57,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 808 transitions. [2023-09-01 01:11:57,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:57,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:57,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:57,505 INFO L175 Difference]: Start difference. First operand has 45 places, 56 transitions, 117 flow. Second operand 3 states and 808 transitions. [2023-09-01 01:11:57,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 173 flow [2023-09-01 01:11:57,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 173 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 01:11:57,510 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 103 flow [2023-09-01 01:11:57,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2023-09-01 01:11:57,514 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2023-09-01 01:11:57,514 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 103 flow [2023-09-01 01:11:57,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:57,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:11:57,516 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 01:11:57,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-09-01 01:11:57,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:11:57,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:11:57,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:11:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1534822734, now seen corresponding path program 1 times [2023-09-01 01:11:57,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:11:57,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865443494] [2023-09-01 01:11:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 01:11:57,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:11:57,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:11:57,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:11:57,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-09-01 01:11:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 01:11:57,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-09-01 01:11:57,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 01:11:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-01 01:11:57,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 01:11:57,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 01:11:57,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865443494] [2023-09-01 01:11:57,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865443494] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 01:11:57,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 01:11:57,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 01:11:57,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272947104] [2023-09-01 01:11:57,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 01:11:57,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 01:11:57,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 01:11:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 01:11:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 01:11:57,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 538 [2023-09-01 01:11:57,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:57,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 01:11:57,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 538 [2023-09-01 01:11:57,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 01:11:58,570 INFO L130 PetriNetUnfolder]: 167/397 cut-off events. [2023-09-01 01:11:58,571 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 01:11:58,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 397 events. 167/397 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1895 event pairs, 140 based on Foata normal form. 2/185 useless extension candidates. Maximal degree in co-relation 732. Up to 339 conditions per place. [2023-09-01 01:11:58,572 INFO L137 encePairwiseOnDemand]: 535/538 looper letters, 35 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-09-01 01:11:58,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 179 flow [2023-09-01 01:11:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 01:11:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 01:11:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 793 transitions. [2023-09-01 01:11:58,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4913258983890954 [2023-09-01 01:11:58,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 793 transitions. [2023-09-01 01:11:58,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 793 transitions. [2023-09-01 01:11:58,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 01:11:58,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 793 transitions. [2023-09-01 01:11:58,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:58,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:58,583 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:58,583 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 103 flow. Second operand 3 states and 793 transitions. [2023-09-01 01:11:58,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 179 flow [2023-09-01 01:11:58,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 01:11:58,585 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 115 flow [2023-09-01 01:11:58,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2023-09-01 01:11:58,586 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2023-09-01 01:11:58,586 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 115 flow [2023-09-01 01:11:58,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:58,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:11:58,587 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 01:11:58,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-09-01 01:11:58,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:11:58,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:11:58,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:11:58,799 INFO L85 PathProgramCache]: Analyzing trace with hash 593919192, now seen corresponding path program 1 times [2023-09-01 01:11:58,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:11:58,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410747069] [2023-09-01 01:11:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 01:11:58,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:11:58,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:11:58,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:11:58,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-09-01 01:11:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 01:11:59,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 01:11:59,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 01:11:59,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-01 01:11:59,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 01:11:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-01 01:11:59,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 01:11:59,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410747069] [2023-09-01 01:11:59,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410747069] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 01:11:59,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-01 01:11:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-09-01 01:11:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959339489] [2023-09-01 01:11:59,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-01 01:11:59,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 01:11:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 01:11:59,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 01:11:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-09-01 01:11:59,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 538 [2023-09-01 01:11:59,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 252.83333333333334) internal successors, (1517), 6 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:11:59,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 01:11:59,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 538 [2023-09-01 01:11:59,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 01:12:01,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:02,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:02,753 INFO L130 PetriNetUnfolder]: 167/403 cut-off events. [2023-09-01 01:12:02,753 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 01:12:02,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 403 events. 167/403 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1915 event pairs, 140 based on Foata normal form. 6/195 useless extension candidates. Maximal degree in co-relation 739. Up to 339 conditions per place. [2023-09-01 01:12:02,755 INFO L137 encePairwiseOnDemand]: 535/538 looper letters, 35 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2023-09-01 01:12:02,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 48 transitions, 207 flow [2023-09-01 01:12:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 01:12:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 01:12:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2023-09-01 01:12:02,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4795539033457249 [2023-09-01 01:12:02,764 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1548 transitions. [2023-09-01 01:12:02,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1548 transitions. [2023-09-01 01:12:02,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 01:12:02,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1548 transitions. [2023-09-01 01:12:02,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:02,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 538.0) internal successors, (3766), 7 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:02,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 538.0) internal successors, (3766), 7 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:02,783 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 115 flow. Second operand 6 states and 1548 transitions. [2023-09-01 01:12:02,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 48 transitions, 207 flow [2023-09-01 01:12:02,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 203 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 01:12:02,787 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 153 flow [2023-09-01 01:12:02,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2023-09-01 01:12:02,789 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2023-09-01 01:12:02,790 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 153 flow [2023-09-01 01:12:02,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.83333333333334) internal successors, (1517), 6 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:02,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:12:02,791 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 01:12:02,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-09-01 01:12:02,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:12:02,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:12:02,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:12:02,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2019630030, now seen corresponding path program 2 times [2023-09-01 01:12:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:12:02,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053394756] [2023-09-01 01:12:02,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 01:12:02,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:12:02,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:12:03,001 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:12:03,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-09-01 01:12:03,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-01 01:12:03,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 01:12:03,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 01:12:03,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 01:12:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-09-01 01:12:03,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 01:12:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-09-01 01:12:04,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 01:12:04,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053394756] [2023-09-01 01:12:04,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053394756] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 01:12:04,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-01 01:12:04,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-09-01 01:12:04,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406841128] [2023-09-01 01:12:04,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-01 01:12:04,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 01:12:04,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 01:12:04,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 01:12:04,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-09-01 01:12:04,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 538 [2023-09-01 01:12:04,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 253.16666666666666) internal successors, (1519), 6 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:04,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 01:12:04,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 538 [2023-09-01 01:12:04,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 01:12:06,830 INFO L130 PetriNetUnfolder]: 169/418 cut-off events. [2023-09-01 01:12:06,831 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-09-01 01:12:06,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 418 events. 169/418 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1898 event pairs, 140 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 730. Up to 333 conditions per place. [2023-09-01 01:12:06,832 INFO L137 encePairwiseOnDemand]: 534/538 looper letters, 55 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2023-09-01 01:12:06,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 69 transitions, 425 flow [2023-09-01 01:12:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 01:12:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 01:12:06,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1554 transitions. [2023-09-01 01:12:06,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48141263940520446 [2023-09-01 01:12:06,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1554 transitions. [2023-09-01 01:12:06,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1554 transitions. [2023-09-01 01:12:06,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 01:12:06,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1554 transitions. [2023-09-01 01:12:06,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:06,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 538.0) internal successors, (3766), 7 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:06,849 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 538.0) internal successors, (3766), 7 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:06,849 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 153 flow. Second operand 6 states and 1554 transitions. [2023-09-01 01:12:06,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 69 transitions, 425 flow [2023-09-01 01:12:06,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 69 transitions, 368 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-09-01 01:12:06,854 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 198 flow [2023-09-01 01:12:06,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2023-09-01 01:12:06,856 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 16 predicate places. [2023-09-01 01:12:06,856 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 198 flow [2023-09-01 01:12:06,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.16666666666666) internal successors, (1519), 6 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:06,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:12:06,857 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 4, 4, 2, 1, 1, 1, 1, 1] [2023-09-01 01:12:06,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-09-01 01:12:07,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:12:07,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:12:07,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:12:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1195506763, now seen corresponding path program 3 times [2023-09-01 01:12:07,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:12:07,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977704763] [2023-09-01 01:12:07,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-01 01:12:07,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:12:07,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:12:07,081 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:12:07,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-09-01 01:12:12,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-09-01 01:12:12,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 01:12:12,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-01 01:12:12,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 01:12:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-09-01 01:12:12,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 01:12:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-09-01 01:12:12,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 01:12:12,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977704763] [2023-09-01 01:12:12,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977704763] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 01:12:12,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-01 01:12:12,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-09-01 01:12:12,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504162234] [2023-09-01 01:12:12,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-01 01:12:12,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 01:12:12,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 01:12:12,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 01:12:12,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-09-01 01:12:12,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 538 [2023-09-01 01:12:12,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 198 flow. Second operand has 12 states, 12 states have (on average 252.66666666666666) internal successors, (3032), 12 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:12,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 01:12:12,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 538 [2023-09-01 01:12:12,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 01:12:15,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:19,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:26,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:28,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:29,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:31,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:34,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:37,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:38,930 INFO L130 PetriNetUnfolder]: 169/442 cut-off events. [2023-09-01 01:12:38,930 INFO L131 PetriNetUnfolder]: For 453/453 co-relation queries the response was YES. [2023-09-01 01:12:38,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 442 events. 169/442 cut-off events. For 453/453 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1893 event pairs, 140 based on Foata normal form. 24/252 useless extension candidates. Maximal degree in co-relation 735. Up to 345 conditions per place. [2023-09-01 01:12:38,932 INFO L137 encePairwiseOnDemand]: 535/538 looper letters, 37 selfloop transitions, 12 changer transitions 0/57 dead transitions. [2023-09-01 01:12:38,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 57 transitions, 332 flow [2023-09-01 01:12:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 01:12:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 01:12:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3063 transitions. [2023-09-01 01:12:38,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47444237918215615 [2023-09-01 01:12:38,941 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3063 transitions. [2023-09-01 01:12:38,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3063 transitions. [2023-09-01 01:12:38,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 01:12:38,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3063 transitions. [2023-09-01 01:12:38,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 255.25) internal successors, (3063), 12 states have internal predecessors, (3063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:38,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 538.0) internal successors, (6994), 13 states have internal predecessors, (6994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:38,958 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 538.0) internal successors, (6994), 13 states have internal predecessors, (6994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:38,959 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 198 flow. Second operand 12 states and 3063 transitions. [2023-09-01 01:12:38,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 57 transitions, 332 flow [2023-09-01 01:12:38,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 57 transitions, 324 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-09-01 01:12:38,962 INFO L231 Difference]: Finished difference. Result has 77 places, 57 transitions, 312 flow [2023-09-01 01:12:38,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=312, PETRI_PLACES=77, PETRI_TRANSITIONS=57} [2023-09-01 01:12:38,963 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 32 predicate places. [2023-09-01 01:12:38,963 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 57 transitions, 312 flow [2023-09-01 01:12:38,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 252.66666666666666) internal successors, (3032), 12 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:38,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:12:38,965 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 4, 4, 2, 1, 1, 1, 1, 1] [2023-09-01 01:12:39,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-09-01 01:12:39,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:12:39,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:12:39,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:12:39,181 INFO L85 PathProgramCache]: Analyzing trace with hash -882466763, now seen corresponding path program 4 times [2023-09-01 01:12:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:12:39,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651776996] [2023-09-01 01:12:39,183 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-01 01:12:39,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:12:39,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:12:39,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:12:39,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-09-01 01:12:46,894 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-01 01:12:46,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 01:12:47,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 6701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-09-01 01:12:47,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 01:12:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2023-09-01 01:12:47,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 01:12:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2023-09-01 01:12:47,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 01:12:47,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651776996] [2023-09-01 01:12:47,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651776996] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 01:12:47,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-09-01 01:12:47,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-09-01 01:12:47,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167378084] [2023-09-01 01:12:47,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-09-01 01:12:47,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-09-01 01:12:47,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 01:12:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-09-01 01:12:47,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-09-01 01:12:48,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 538 [2023-09-01 01:12:48,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 57 transitions, 312 flow. Second operand has 24 states, 24 states have (on average 252.33333333333334) internal successors, (6056), 24 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:12:48,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 01:12:48,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 538 [2023-09-01 01:12:48,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 01:12:51,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:52,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:53,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:55,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:56,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:57,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:12:58,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:00,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:02,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:04,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:06,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:12,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:15,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:17,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:18,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:22,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:23,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:25,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:32,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:34,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:35,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:38,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:40,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:42,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:44,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:47,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:48,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:51,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:53,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:56,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:58,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:13:59,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:00,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:03,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:09,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:12,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:13,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:16,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:18,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:22,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:23,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:24,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:26,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:27,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:29,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:31,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:32,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:34,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:36,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:38,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-09-01 01:14:41,035 INFO L130 PetriNetUnfolder]: 169/490 cut-off events. [2023-09-01 01:14:41,036 INFO L131 PetriNetUnfolder]: For 2848/2848 co-relation queries the response was YES. [2023-09-01 01:14:41,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 490 events. 169/490 cut-off events. For 2848/2848 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1893 event pairs, 140 based on Foata normal form. 48/324 useless extension candidates. Maximal degree in co-relation 740. Up to 345 conditions per place. [2023-09-01 01:14:41,038 INFO L137 encePairwiseOnDemand]: 535/538 looper letters, 37 selfloop transitions, 24 changer transitions 0/69 dead transitions. [2023-09-01 01:14:41,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 69 transitions, 530 flow [2023-09-01 01:14:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-01 01:14:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-09-01 01:14:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6093 transitions. [2023-09-01 01:14:41,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4718866171003718 [2023-09-01 01:14:41,051 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6093 transitions. [2023-09-01 01:14:41,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6093 transitions. [2023-09-01 01:14:41,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 01:14:41,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6093 transitions. [2023-09-01 01:14:41,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 253.875) internal successors, (6093), 24 states have internal predecessors, (6093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:14:41,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 538.0) internal successors, (13450), 25 states have internal predecessors, (13450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:14:41,081 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 538.0) internal successors, (13450), 25 states have internal predecessors, (13450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:14:41,081 INFO L175 Difference]: Start difference. First operand has 77 places, 57 transitions, 312 flow. Second operand 24 states and 6093 transitions. [2023-09-01 01:14:41,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 69 transitions, 530 flow [2023-09-01 01:14:41,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 69 transitions, 456 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-09-01 01:14:41,110 INFO L231 Difference]: Finished difference. Result has 107 places, 69 transitions, 504 flow [2023-09-01 01:14:41,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=504, PETRI_PLACES=107, PETRI_TRANSITIONS=69} [2023-09-01 01:14:41,113 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 62 predicate places. [2023-09-01 01:14:41,113 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 69 transitions, 504 flow [2023-09-01 01:14:41,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 252.33333333333334) internal successors, (6056), 24 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 01:14:41,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 01:14:41,121 INFO L208 CegarLoopForPetriNet]: trace histogram [88, 4, 4, 2, 1, 1, 1, 1, 1] [2023-09-01 01:14:41,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-09-01 01:14:41,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:14:41,341 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 01:14:41,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 01:14:41,341 INFO L85 PathProgramCache]: Analyzing trace with hash 858257717, now seen corresponding path program 5 times [2023-09-01 01:14:41,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 01:14:41,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202207607] [2023-09-01 01:14:41,344 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-09-01 01:14:41,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 01:14:41,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 01:14:41,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 01:14:41,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process Killed by 15