./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d59bd5d9792e4b6ae036e2d57d3b531c7de51151 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:25:03,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:25:03,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:25:03,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:25:03,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:25:03,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:25:03,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:25:03,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:25:03,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:25:03,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:25:03,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:25:03,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:25:03,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:25:03,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:25:03,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:25:03,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:25:03,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:25:03,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:25:03,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:25:03,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:25:03,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:25:03,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:25:03,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:25:03,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:25:03,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:25:03,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:25:03,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:25:03,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:25:03,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:25:03,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:25:03,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:25:03,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:25:03,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:25:03,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:25:03,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:25:03,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:25:03,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:25:03,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:25:03,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:25:03,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:25:03,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:25:03,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:25:03,593 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:25:03,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:25:03,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:25:03,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:25:03,607 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:25:03,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:25:03,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:25:03,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:25:03,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:25:03,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:25:03,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:25:03,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:25:03,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:25:03,609 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:25:03,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:25:03,610 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:25:03,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:25:03,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:25:03,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:25:03,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:25:03,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:25:03,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:25:03,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:25:03,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:25:03,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:25:03,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:25:03,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:25:03,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:25:03,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d59bd5d9792e4b6ae036e2d57d3b531c7de51151 [2019-11-20 06:25:03,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:25:03,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:25:03,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:25:03,839 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:25:03,839 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:25:03,840 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc.i [2019-11-20 06:25:03,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/data/72731cf53/cbe21d2e176244a09e9f06544241cc38/FLAG48f80b88a [2019-11-20 06:25:04,483 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:25:04,487 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc.i [2019-11-20 06:25:04,502 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/data/72731cf53/cbe21d2e176244a09e9f06544241cc38/FLAG48f80b88a [2019-11-20 06:25:04,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/data/72731cf53/cbe21d2e176244a09e9f06544241cc38 [2019-11-20 06:25:04,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:25:04,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:25:04,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:25:04,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:25:04,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:25:04,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:25:04" (1/1) ... [2019-11-20 06:25:04,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc304e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:04, skipping insertion in model container [2019-11-20 06:25:04,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:25:04" (1/1) ... [2019-11-20 06:25:04,826 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:25:04,877 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:25:05,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:25:05,478 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:25:05,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:25:05,657 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:25:05,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05 WrapperNode [2019-11-20 06:25:05,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:25:05,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:25:05,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:25:05,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:25:05,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:25:05,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:25:05,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:25:05,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:25:05,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... [2019-11-20 06:25:05,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:25:05,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:25:05,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:25:05,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:25:05,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:25:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 06:25:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 06:25:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:25:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:25:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 06:25:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 06:25:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 06:25:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 06:25:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 06:25:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 06:25:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 06:25:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:25:05,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:25:05,820 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 06:25:06,285 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:25:06,285 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 06:25:06,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:25:06 BoogieIcfgContainer [2019-11-20 06:25:06,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:25:06,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:25:06,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:25:06,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:25:06,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:25:04" (1/3) ... [2019-11-20 06:25:06,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a68213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:25:06, skipping insertion in model container [2019-11-20 06:25:06,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:05" (2/3) ... [2019-11-20 06:25:06,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a68213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:25:06, skipping insertion in model container [2019-11-20 06:25:06,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:25:06" (3/3) ... [2019-11-20 06:25:06,295 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2019-11-20 06:25:06,367 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,368 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,368 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,368 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,369 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,369 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,370 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,370 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,370 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,371 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,372 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,372 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,372 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,373 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,373 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,373 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,374 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,375 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,375 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,375 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,377 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,377 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,377 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,377 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,378 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,378 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,378 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,378 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,379 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,379 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,380 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,381 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,381 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,382 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,385 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,385 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,386 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,386 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,386 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,387 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,388 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,388 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,388 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,388 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,389 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,389 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 06:25:06,422 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 06:25:06,422 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:25:06,430 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:25:06,448 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:25:06,470 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:25:06,470 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:25:06,470 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:25:06,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:25:06,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:25:06,471 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:25:06,471 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:25:06,471 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:25:06,482 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-20 06:25:10,545 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-20 06:25:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-20 06:25:10,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 06:25:10,620 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:25:10,621 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:25:10,621 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:25:10,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:25:10,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1351610832, now seen corresponding path program 1 times [2019-11-20 06:25:10,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:25:10,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212106006] [2019-11-20 06:25:10,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:25:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:25:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:25:10,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212106006] [2019-11-20 06:25:10,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:25:10,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 06:25:10,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903378158] [2019-11-20 06:25:10,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 06:25:10,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:25:11,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 06:25:11,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 06:25:11,013 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-20 06:25:11,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:25:11,556 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-20 06:25:11,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:25:11,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-20 06:25:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:25:11,749 INFO L225 Difference]: With dead ends: 33013 [2019-11-20 06:25:11,750 INFO L226 Difference]: Without dead ends: 14275 [2019-11-20 06:25:11,752 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:25:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-20 06:25:12,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-20 06:25:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-20 06:25:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-20 06:25:12,833 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-20 06:25:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:25:12,834 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-20 06:25:12,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 06:25:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-20 06:25:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 06:25:12,867 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:25:12,868 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:25:12,868 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:25:12,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:25:12,877 INFO L82 PathProgramCache]: Analyzing trace with hash 937877479, now seen corresponding path program 1 times [2019-11-20 06:25:12,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:25:12,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779724629] [2019-11-20 06:25:12,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:25:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:25:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:25:13,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779724629] [2019-11-20 06:25:13,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:25:13,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 06:25:13,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626757052] [2019-11-20 06:25:13,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:25:13,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:25:13,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:25:13,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:25:13,086 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-20 06:25:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:25:13,486 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-20 06:25:13,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:25:13,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 06:25:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:25:13,560 INFO L225 Difference]: With dead ends: 14275 [2019-11-20 06:25:13,561 INFO L226 Difference]: Without dead ends: 12574 [2019-11-20 06:25:13,562 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:25:13,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-20 06:25:14,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-20 06:25:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-20 06:25:14,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-20 06:25:14,084 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-20 06:25:14,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:25:14,085 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-20 06:25:14,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:25:14,085 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-20 06:25:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 06:25:14,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:25:14,116 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:25:14,116 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:25:14,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:25:14,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1114446434, now seen corresponding path program 1 times [2019-11-20 06:25:14,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:25:14,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903011752] [2019-11-20 06:25:14,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:25:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:25:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:25:14,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903011752] [2019-11-20 06:25:14,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:25:14,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 06:25:14,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713992599] [2019-11-20 06:25:14,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 06:25:14,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:25:14,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 06:25:14,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:25:14,267 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-20 06:25:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:25:14,477 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-20 06:25:14,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:25:14,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 06:25:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:25:14,503 INFO L225 Difference]: With dead ends: 8929 [2019-11-20 06:25:14,503 INFO L226 Difference]: Without dead ends: 7471 [2019-11-20 06:25:14,504 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-20 06:25:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-20 06:25:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-20 06:25:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-20 06:25:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-20 06:25:14,990 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-20 06:25:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:25:14,991 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-20 06:25:14,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 06:25:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-20 06:25:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 06:25:15,006 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:25:15,006 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:25:15,006 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:25:15,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:25:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1008662779, now seen corresponding path program 1 times [2019-11-20 06:25:15,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:25:15,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024080269] [2019-11-20 06:25:15,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:25:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:25:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:25:15,172 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024080269] [2019-11-20 06:25:15,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:25:15,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 06:25:15,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327695401] [2019-11-20 06:25:15,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 06:25:15,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:25:15,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:25:15,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:25:15,174 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 7 states. [2019-11-20 06:25:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:25:15,423 INFO L93 Difference]: Finished difference Result 12088 states and 34011 transitions. [2019-11-20 06:25:15,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 06:25:15,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-20 06:25:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:25:15,447 INFO L225 Difference]: With dead ends: 12088 [2019-11-20 06:25:15,447 INFO L226 Difference]: Without dead ends: 6679 [2019-11-20 06:25:15,448 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 06:25:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2019-11-20 06:25:15,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2019-11-20 06:25:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6679 states. [2019-11-20 06:25:15,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 18666 transitions. [2019-11-20 06:25:15,652 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 18666 transitions. Word has length 34 [2019-11-20 06:25:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:25:15,652 INFO L462 AbstractCegarLoop]: Abstraction has 6679 states and 18666 transitions. [2019-11-20 06:25:15,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 06:25:15,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 18666 transitions. [2019-11-20 06:25:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 06:25:15,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:25:15,663 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:25:15,663 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:25:15,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:25:15,664 INFO L82 PathProgramCache]: Analyzing trace with hash -61004729, now seen corresponding path program 2 times [2019-11-20 06:25:15,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:25:15,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100804850] [2019-11-20 06:25:15,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:25:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:25:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:25:15,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100804850] [2019-11-20 06:25:15,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:25:15,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 06:25:15,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233606420] [2019-11-20 06:25:15,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 06:25:15,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:25:15,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:25:15,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:25:15,884 INFO L87 Difference]: Start difference. First operand 6679 states and 18666 transitions. Second operand 7 states. [2019-11-20 06:25:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:25:16,143 INFO L93 Difference]: Finished difference Result 11053 states and 31059 transitions. [2019-11-20 06:25:16,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 06:25:16,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-20 06:25:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:25:16,166 INFO L225 Difference]: With dead ends: 11053 [2019-11-20 06:25:16,166 INFO L226 Difference]: Without dead ends: 6247 [2019-11-20 06:25:16,167 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 06:25:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2019-11-20 06:25:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6247. [2019-11-20 06:25:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6247 states. [2019-11-20 06:25:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6247 states to 6247 states and 17586 transitions. [2019-11-20 06:25:16,347 INFO L78 Accepts]: Start accepts. Automaton has 6247 states and 17586 transitions. Word has length 34 [2019-11-20 06:25:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:25:16,348 INFO L462 AbstractCegarLoop]: Abstraction has 6247 states and 17586 transitions. [2019-11-20 06:25:16,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 06:25:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6247 states and 17586 transitions. [2019-11-20 06:25:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 06:25:16,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:25:16,359 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:25:16,359 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:25:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:25:16,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1946564249, now seen corresponding path program 3 times [2019-11-20 06:25:16,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:25:16,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783266803] [2019-11-20 06:25:16,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:25:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:25:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:25:16,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783266803] [2019-11-20 06:25:16,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:25:16,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 06:25:16,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058157920] [2019-11-20 06:25:16,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:25:16,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:25:16,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:25:16,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:25:16,518 INFO L87 Difference]: Start difference. First operand 6247 states and 17586 transitions. Second operand 8 states. [2019-11-20 06:25:16,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:25:16,691 INFO L93 Difference]: Finished difference Result 4789 states and 13212 transitions. [2019-11-20 06:25:16,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:25:16,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 06:25:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:25:16,692 INFO L225 Difference]: With dead ends: 4789 [2019-11-20 06:25:16,692 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 06:25:16,693 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 06:25:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 06:25:16,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 06:25:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 06:25:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 06:25:16,694 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-20 06:25:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:25:16,694 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:25:16,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:25:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:25:16,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:25:16,698 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 06:25:16,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:25:16 BasicIcfg [2019-11-20 06:25:16,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:25:16,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:25:16,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:25:16,701 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:25:16,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:25:06" (3/4) ... [2019-11-20 06:25:16,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:25:16,725 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 06:25:16,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 06:25:16,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 06:25:16,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 06:25:16,745 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 06:25:16,745 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 06:25:16,801 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dec85802-ef1a-493c-a67f-0eb9d852fb18/bin/uautomizer/witness.graphml [2019-11-20 06:25:16,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:25:16,804 INFO L168 Benchmark]: Toolchain (without parser) took 11993.75 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 670.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 513.8 MB. Max. memory is 11.5 GB. [2019-11-20 06:25:16,808 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:25:16,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 06:25:16,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:25:16,810 INFO L168 Benchmark]: Boogie Preprocessor took 29.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:25:16,816 INFO L168 Benchmark]: RCFGBuilder took 551.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-11-20 06:25:16,816 INFO L168 Benchmark]: TraceAbstraction took 10412.99 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 496.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 504.1 MB. Max. memory is 11.5 GB. [2019-11-20 06:25:16,817 INFO L168 Benchmark]: Witness Printer took 100.59 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-11-20 06:25:16,819 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 848.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 551.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10412.99 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 496.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 504.1 MB. Max. memory is 11.5 GB. * Witness Printer took 100.59 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 10.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 877 SDslu, 1531 SDs, 0 SdLazy, 231 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31744occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 19230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...