./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:59:33,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:59:33,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:59:33,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:59:33,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:59:33,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:59:33,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:59:33,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:59:33,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:59:33,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:59:33,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:59:33,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:59:33,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:59:33,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:59:33,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:59:33,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:59:33,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:59:33,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:59:33,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:59:33,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:59:33,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:59:33,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:59:33,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:59:33,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:59:33,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:59:33,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:59:33,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:59:33,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:59:33,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:59:33,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:59:33,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:59:33,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:59:33,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:59:33,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:59:33,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:59:33,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:59:33,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:59:33,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:59:33,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:59:33,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:59:33,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:59:33,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 01:59:33,198 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:59:33,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:59:33,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:59:33,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:59:33,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:59:33,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:59:33,201 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:59:33,201 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:59:33,202 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:59:33,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:59:33,202 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:59:33,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:59:33,203 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:59:33,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:59:33,203 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:59:33,204 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:59:33,204 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:59:33,204 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:59:33,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:59:33,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:59:33,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:59:33,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:59:33,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:59:33,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:59:33,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:59:33,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:59:33,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:59:33,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:59:33,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:59:33,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:59:33,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:59:33,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:59:33,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:59:33,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:59:33,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:59:33,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:59:33,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:59:33,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:59:33,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:59:33,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:59:33,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:59:33,212 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2021-11-23 01:59:33,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:59:33,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:59:33,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:59:33,578 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:59:33,579 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:59:33,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2021-11-23 01:59:33,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/data/9bbe258be/78069ee1c3e14e88a5609ac1a96c2677/FLAGdcf53b7aa [2021-11-23 01:59:34,453 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:59:34,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2021-11-23 01:59:34,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/data/9bbe258be/78069ee1c3e14e88a5609ac1a96c2677/FLAGdcf53b7aa [2021-11-23 01:59:34,622 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/data/9bbe258be/78069ee1c3e14e88a5609ac1a96c2677 [2021-11-23 01:59:34,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:59:34,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:59:34,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:59:34,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:59:34,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:59:34,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:34" (1/1) ... [2021-11-23 01:59:34,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ceeb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:34, skipping insertion in model container [2021-11-23 01:59:34,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:59:34" (1/1) ... [2021-11-23 01:59:34,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:59:34,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:59:35,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2021-11-23 01:59:35,357 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,359 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,359 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,360 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:59:35,448 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:59:35,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2021-11-23 01:59:35,534 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,534 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,536 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,539 WARN L1533 CHandler]: Possible shadowing of function new [2021-11-23 01:59:35,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:59:35,678 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:59:35,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35 WrapperNode [2021-11-23 01:59:35,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:59:35,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:59:35,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:59:35,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:59:35,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,800 INFO L137 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 223 [2021-11-23 01:59:35,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:59:35,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:59:35,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:59:35,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:59:35,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:59:35,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:59:35,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:59:35,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:59:35,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (1/1) ... [2021-11-23 01:59:35,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:59:35,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:59:35,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:59:35,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:59:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:59:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:59:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:59:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:59:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:59:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 01:59:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:59:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:59:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:59:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-23 01:59:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-23 01:59:36,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:59:36,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:59:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:59:36,016 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 01:59:36,160 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:59:36,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:59:36,758 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:59:36,773 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:59:36,773 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-23 01:59:36,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:36 BoogieIcfgContainer [2021-11-23 01:59:36,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:59:36,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:59:36,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:59:36,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:59:36,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:59:34" (1/3) ... [2021-11-23 01:59:36,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65074d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:59:36, skipping insertion in model container [2021-11-23 01:59:36,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:59:35" (2/3) ... [2021-11-23 01:59:36,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65074d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:59:36, skipping insertion in model container [2021-11-23 01:59:36,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:59:36" (3/3) ... [2021-11-23 01:59:36,795 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2021-11-23 01:59:36,801 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 01:59:36,801 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:59:36,802 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:59:36,802 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 01:59:36,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,924 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,925 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,926 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,927 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,928 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,935 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,953 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,954 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,955 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,956 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,957 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,958 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,959 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,960 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,961 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,962 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,963 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,964 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,965 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,966 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,967 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,968 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,969 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,970 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,971 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,972 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,973 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,974 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,975 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,976 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,977 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,978 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,979 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,980 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,981 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,982 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,985 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,985 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,986 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,987 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,988 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~3#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,988 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,988 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,988 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,988 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,989 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,989 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~pos~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,989 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,989 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,990 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~q~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,990 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,990 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,990 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,990 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,991 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,991 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,991 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem11#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,991 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,991 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem21#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 01:59:36,995 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-23 01:59:37,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:59:37,050 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:59:37,051 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 01:59:37,069 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-23 01:59:37,083 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 256 transitions, 520 flow [2021-11-23 01:59:37,087 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 256 transitions, 520 flow [2021-11-23 01:59:37,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 256 transitions, 520 flow [2021-11-23 01:59:37,179 INFO L129 PetriNetUnfolder]: 29/273 cut-off events. [2021-11-23 01:59:37,179 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2021-11-23 01:59:37,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 273 events. 29/273 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 583 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 155. Up to 4 conditions per place. [2021-11-23 01:59:37,195 INFO L116 LiptonReduction]: Number of co-enabled transitions 4094 [2021-11-23 02:00:15,104 WARN L227 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 02:00:25,676 WARN L227 SmtUtils]: Spent 10.57s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 02:00:34,626 WARN L227 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 02:00:43,713 WARN L227 SmtUtils]: Spent 9.08s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 02:00:43,718 INFO L131 LiptonReduction]: Checked pairs total: 4165 [2021-11-23 02:00:43,719 INFO L133 LiptonReduction]: Total number of compositions: 258 [2021-11-23 02:00:43,727 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 39 transitions, 86 flow [2021-11-23 02:00:43,744 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 100 states, 96 states have (on average 2.7083333333333335) internal successors, (260), 99 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 96 states have (on average 2.7083333333333335) internal successors, (260), 99 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 02:00:43,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:43,753 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-23 02:00:43,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:43,759 INFO L85 PathProgramCache]: Analyzing trace with hash 657631109, now seen corresponding path program 1 times [2021-11-23 02:00:43,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:43,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912613861] [2021-11-23 02:00:43,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:43,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:00:44,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:44,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912613861] [2021-11-23 02:00:44,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912613861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:44,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:44,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:00:44,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413897046] [2021-11-23 02:00:44,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:44,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:44,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:44,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:44,095 INFO L87 Difference]: Start difference. First operand has 100 states, 96 states have (on average 2.7083333333333335) internal successors, (260), 99 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:44,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:44,421 INFO L93 Difference]: Finished difference Result 102 states and 200 transitions. [2021-11-23 02:00:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 02:00:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:44,437 INFO L225 Difference]: With dead ends: 102 [2021-11-23 02:00:44,437 INFO L226 Difference]: Without dead ends: 102 [2021-11-23 02:00:44,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:44,448 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:44,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:00:44,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-23 02:00:44,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-11-23 02:00:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 2.0412371134020617) internal successors, (198), 100 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 198 transitions. [2021-11-23 02:00:44,512 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 198 transitions. Word has length 7 [2021-11-23 02:00:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:44,513 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 198 transitions. [2021-11-23 02:00:44,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:44,515 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 198 transitions. [2021-11-23 02:00:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:00:44,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:44,516 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:44,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:00:44,517 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:44,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash 167423554, now seen corresponding path program 1 times [2021-11-23 02:00:44,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:44,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044665562] [2021-11-23 02:00:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:44,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:00:44,639 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:44,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044665562] [2021-11-23 02:00:44,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044665562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:00:44,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:00:44,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:00:44,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352777318] [2021-11-23 02:00:44,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:00:44,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:00:44,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:44,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:00:44,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:44,653 INFO L87 Difference]: Start difference. First operand 101 states and 198 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:44,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:44,861 INFO L93 Difference]: Finished difference Result 102 states and 199 transitions. [2021-11-23 02:00:44,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:00:44,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 02:00:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:44,864 INFO L225 Difference]: With dead ends: 102 [2021-11-23 02:00:44,864 INFO L226 Difference]: Without dead ends: 102 [2021-11-23 02:00:44,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:00:44,866 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:44,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:00:44,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-23 02:00:44,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-11-23 02:00:44,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 98 states have (on average 2.0306122448979593) internal successors, (199), 101 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:44,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 199 transitions. [2021-11-23 02:00:44,881 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 199 transitions. Word has length 9 [2021-11-23 02:00:44,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:44,882 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 199 transitions. [2021-11-23 02:00:44,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:44,882 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 199 transitions. [2021-11-23 02:00:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:00:44,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:44,883 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:44,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:00:44,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:44,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:44,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1952927189, now seen corresponding path program 1 times [2021-11-23 02:00:44,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:44,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531973597] [2021-11-23 02:00:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:44,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:44,908 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:00:44,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758924203] [2021-11-23 02:00:44,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:44,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:44,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:44,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:00:44,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:00:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:45,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:00:45,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:00:45,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:00:45,106 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:45,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531973597] [2021-11-23 02:00:45,106 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:00:45,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758924203] [2021-11-23 02:00:45,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758924203] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:00:45,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1408168163] [2021-11-23 02:00:45,114 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 02:00:45,118 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:00:45,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-23 02:00:45,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176831969] [2021-11-23 02:00:45,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:00:45,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:00:45,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:00:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:00:45,126 INFO L87 Difference]: Start difference. First operand 102 states and 199 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:45,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:45,548 INFO L93 Difference]: Finished difference Result 105 states and 202 transitions. [2021-11-23 02:00:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:00:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 02:00:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:45,565 INFO L225 Difference]: With dead ends: 105 [2021-11-23 02:00:45,565 INFO L226 Difference]: Without dead ends: 105 [2021-11-23 02:00:45,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:00:45,567 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:45,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:00:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-23 02:00:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-23 02:00:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 101 states have (on average 2.0) internal successors, (202), 104 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 202 transitions. [2021-11-23 02:00:45,588 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 202 transitions. Word has length 10 [2021-11-23 02:00:45,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:45,589 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 202 transitions. [2021-11-23 02:00:45,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 202 transitions. [2021-11-23 02:00:45,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 02:00:45,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:45,590 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:00:45,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:45,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-23 02:00:45,800 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:45,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2091851646, now seen corresponding path program 2 times [2021-11-23 02:00:45,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:45,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828507227] [2021-11-23 02:00:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:45,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:45,822 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:00:45,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31953763] [2021-11-23 02:00:45,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:00:45,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:45,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:45,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:00:45,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:00:45,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 02:00:45,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:00:45,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:00:45,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:46,025 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:00:46,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:00:46,224 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:46,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828507227] [2021-11-23 02:00:46,225 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:00:46,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31953763] [2021-11-23 02:00:46,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31953763] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:00:46,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1185744702] [2021-11-23 02:00:46,226 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 02:00:46,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:00:46,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-11-23 02:00:46,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094385558] [2021-11-23 02:00:46,233 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:00:46,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:00:46,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:46,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:00:46,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:00:46,235 INFO L87 Difference]: Start difference. First operand 105 states and 202 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:46,579 INFO L93 Difference]: Finished difference Result 123 states and 223 transitions. [2021-11-23 02:00:46,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:00:46,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 02:00:46,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:46,581 INFO L225 Difference]: With dead ends: 123 [2021-11-23 02:00:46,581 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 02:00:46,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:00:46,583 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:46,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:00:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 02:00:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-23 02:00:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 119 states have (on average 1.8739495798319328) internal successors, (223), 122 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 223 transitions. [2021-11-23 02:00:46,595 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 223 transitions. Word has length 13 [2021-11-23 02:00:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:46,595 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 223 transitions. [2021-11-23 02:00:46,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 223 transitions. [2021-11-23 02:00:46,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 02:00:46,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:46,597 INFO L514 BasicCegarLoop]: trace histogram [16, 4, 4, 2, 1, 1, 1, 1, 1] [2021-11-23 02:00:46,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:46,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:46,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1289232633, now seen corresponding path program 3 times [2021-11-23 02:00:46,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:46,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925266939] [2021-11-23 02:00:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:46,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:46,838 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:00:46,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272228889] [2021-11-23 02:00:46,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 02:00:46,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:46,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:46,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:00:46,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:00:47,168 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 02:00:47,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:00:47,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:00:47,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:00:47,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:00:47,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:47,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925266939] [2021-11-23 02:00:47,471 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:00:47,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272228889] [2021-11-23 02:00:47,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272228889] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:00:47,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1617964882] [2021-11-23 02:00:47,472 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 02:00:47,473 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:00:47,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-23 02:00:47,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402574021] [2021-11-23 02:00:47,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:00:47,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:00:47,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:47,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:00:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:00:47,477 INFO L87 Difference]: Start difference. First operand 123 states and 223 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:49,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:49,383 INFO L93 Difference]: Finished difference Result 147 states and 247 transitions. [2021-11-23 02:00:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:00:49,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-23 02:00:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:49,385 INFO L225 Difference]: With dead ends: 147 [2021-11-23 02:00:49,385 INFO L226 Difference]: Without dead ends: 147 [2021-11-23 02:00:49,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:00:49,386 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:49,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-23 02:00:49,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-23 02:00:49,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-11-23 02:00:49,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 143 states have (on average 1.7272727272727273) internal successors, (247), 146 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 247 transitions. [2021-11-23 02:00:49,400 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 247 transitions. Word has length 31 [2021-11-23 02:00:49,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:49,400 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 247 transitions. [2021-11-23 02:00:49,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 247 transitions. [2021-11-23 02:00:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 02:00:49,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:49,403 INFO L514 BasicCegarLoop]: trace histogram [40, 4, 4, 2, 1, 1, 1, 1, 1] [2021-11-23 02:00:49,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:49,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:49,629 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:49,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:49,629 INFO L85 PathProgramCache]: Analyzing trace with hash 439514105, now seen corresponding path program 4 times [2021-11-23 02:00:49,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:49,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422303615] [2021-11-23 02:00:49,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:49,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:49,689 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:00:49,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111036280] [2021-11-23 02:00:49,690 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 02:00:49,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:49,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:49,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:00:49,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:00:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:00:50,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 02:00:50,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:00:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-11-23 02:00:50,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:00:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-11-23 02:00:50,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:00:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422303615] [2021-11-23 02:00:50,815 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:00:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111036280] [2021-11-23 02:00:50,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111036280] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:00:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [942288840] [2021-11-23 02:00:50,816 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 02:00:50,816 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:00:50,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-23 02:00:50,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293942986] [2021-11-23 02:00:50,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:00:50,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 02:00:50,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:00:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 02:00:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-23 02:00:50,819 INFO L87 Difference]: Start difference. First operand 147 states and 247 transitions. Second operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:52,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:00:52,550 INFO L93 Difference]: Finished difference Result 195 states and 295 transitions. [2021-11-23 02:00:52,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 02:00:52,551 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-23 02:00:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:00:52,553 INFO L225 Difference]: With dead ends: 195 [2021-11-23 02:00:52,553 INFO L226 Difference]: Without dead ends: 195 [2021-11-23 02:00:52,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-23 02:00:52,555 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:00:52,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 02:00:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-23 02:00:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-23 02:00:52,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 191 states have (on average 1.544502617801047) internal successors, (295), 194 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 295 transitions. [2021-11-23 02:00:52,569 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 295 transitions. Word has length 55 [2021-11-23 02:00:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:00:52,570 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 295 transitions. [2021-11-23 02:00:52,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:00:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 295 transitions. [2021-11-23 02:00:52,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 02:00:52,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:00:52,574 INFO L514 BasicCegarLoop]: trace histogram [88, 4, 4, 2, 1, 1, 1, 1, 1] [2021-11-23 02:00:52,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:00:52,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:52,801 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:00:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:00:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1949910535, now seen corresponding path program 5 times [2021-11-23 02:00:52,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:00:52,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709393533] [2021-11-23 02:00:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:00:52,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:00:52,868 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:00:52,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367765112] [2021-11-23 02:00:52,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:00:52,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:00:52,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:52,870 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:00:52,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ab9d84-3b98-4f86-9b3e-48fcd575f5b3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process