./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_tso.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_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/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 485ce5d655f515ee22f343361eca7cdfe2a4f399 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 07:41:32,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:41:32,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:41:32,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:41:32,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:41:32,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:41:32,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:41:32,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:41:32,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:41:32,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:41:32,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:41:32,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:41:32,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:41:32,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:41:32,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:41:32,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:41:32,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:41:32,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:41:32,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:41:32,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:41:32,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:41:32,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:41:32,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:41:32,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:41:32,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:41:32,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:41:32,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:41:32,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:41:32,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:41:32,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:41:32,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:41:32,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:41:32,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:41:32,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:41:32,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:41:32,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:41:32,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:41:32,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:41:32,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:41:32,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:41:32,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:41:32,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:41:32,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:41:32,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:41:32,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:41:32,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:41:32,951 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:41:32,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:41:32,952 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:41:32,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:41:32,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:41:32,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:41:32,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:41:32,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:41:32,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:41:32,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:41:32,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:41:32,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:41:32,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:41:32,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:41:32,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:41:32,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:41:32,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:41:32,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:41:32,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:41:32,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:41:32,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:41:32,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:41:32,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:41:32,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:41:32,957 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_0f541778-8012-4684-90b2-fb1169c133d8/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 -> 485ce5d655f515ee22f343361eca7cdfe2a4f399 [2019-11-20 07:41:33,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:41:33,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:41:33,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:41:33,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:41:33,121 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:41:33,122 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i [2019-11-20 07:41:33,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/data/8a322e987/ecb37e7fcae645cf8b40490fe6e04a70/FLAGe3d427b07 [2019-11-20 07:41:33,682 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:41:33,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i [2019-11-20 07:41:33,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/data/8a322e987/ecb37e7fcae645cf8b40490fe6e04a70/FLAGe3d427b07 [2019-11-20 07:41:34,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/data/8a322e987/ecb37e7fcae645cf8b40490fe6e04a70 [2019-11-20 07:41:34,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:41:34,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:41:34,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:41:34,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:41:34,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:41:34,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f41308e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34, skipping insertion in model container [2019-11-20 07:41:34,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,078 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:41:34,123 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:41:34,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:41:34,564 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:41:34,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:41:34,679 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:41:34,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34 WrapperNode [2019-11-20 07:41:34,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:41:34,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:41:34,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:41:34,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:41:34,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:41:34,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:41:34,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:41:34,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:41:34,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... [2019-11-20 07:41:34,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:41:34,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:41:34,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:41:34,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:41:34,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/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 07:41:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 07:41:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 07:41:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:41:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:41:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 07:41:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 07:41:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 07:41:34,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 07:41:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 07:41:34,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 07:41:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 07:41:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:41:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:41:34,824 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 07:41:35,179 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:41:35,179 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 07:41:35,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:35 BoogieIcfgContainer [2019-11-20 07:41:35,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:41:35,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:41:35,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:41:35,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:41:35,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:41:34" (1/3) ... [2019-11-20 07:41:35,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fde64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:41:35, skipping insertion in model container [2019-11-20 07:41:35,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:34" (2/3) ... [2019-11-20 07:41:35,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fde64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:41:35, skipping insertion in model container [2019-11-20 07:41:35,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:35" (3/3) ... [2019-11-20 07:41:35,188 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2019-11-20 07:41:35,274 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,275 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,275 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,276 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,276 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,276 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,277 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,277 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,278 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,278 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,279 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,279 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,280 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,280 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,280 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,282 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,282 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,282 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,283 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,283 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,283 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,284 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,284 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,285 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 07:41:35,332 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 07:41:35,332 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:41:35,340 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:41:35,351 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:41:35,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:41:35,374 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:41:35,374 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:41:35,374 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:41:35,374 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:41:35,376 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:41:35,376 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:41:35,376 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:41:35,388 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-20 07:41:39,160 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-20 07:41:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-20 07:41:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 07:41:39,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:41:39,220 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 07:41:39,221 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:41:39,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:41:39,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1351610832, now seen corresponding path program 1 times [2019-11-20 07:41:39,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:41:39,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800813666] [2019-11-20 07:41:39,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:41:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:41:39,581 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 07:41:39,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800813666] [2019-11-20 07:41:39,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:41:39,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:41:39,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714851018] [2019-11-20 07:41:39,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:41:39,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:41:39,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:41:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:41:39,605 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-20 07:41:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:41:40,067 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-20 07:41:40,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:41:40,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-20 07:41:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:41:40,227 INFO L225 Difference]: With dead ends: 33013 [2019-11-20 07:41:40,227 INFO L226 Difference]: Without dead ends: 14275 [2019-11-20 07:41:40,229 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 07:41:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-20 07:41:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-20 07:41:40,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-20 07:41:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-20 07:41:41,058 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-20 07:41:41,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:41:41,060 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-20 07:41:41,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:41:41,061 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-20 07:41:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 07:41:41,088 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:41:41,088 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 07:41:41,089 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:41:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:41:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1173614379, now seen corresponding path program 1 times [2019-11-20 07:41:41,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:41:41,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672970145] [2019-11-20 07:41:41,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:41:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:41:41,311 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 07:41:41,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672970145] [2019-11-20 07:41:41,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:41:41,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:41:41,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636196277] [2019-11-20 07:41:41,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:41:41,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:41:41,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:41:41,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:41:41,314 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-20 07:41:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:41:41,683 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-20 07:41:41,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:41:41,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 07:41:41,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:41:41,745 INFO L225 Difference]: With dead ends: 14275 [2019-11-20 07:41:41,745 INFO L226 Difference]: Without dead ends: 12574 [2019-11-20 07:41:41,746 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:41:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-20 07:41:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-20 07:41:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-20 07:41:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-20 07:41:42,191 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-20 07:41:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:41:42,192 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-20 07:41:42,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:41:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-20 07:41:42,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 07:41:42,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:41:42,218 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 07:41:42,218 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:41:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:41:42,219 INFO L82 PathProgramCache]: Analyzing trace with hash 518634513, now seen corresponding path program 1 times [2019-11-20 07:41:42,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:41:42,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316826960] [2019-11-20 07:41:42,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:41:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:41:42,355 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 07:41:42,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316826960] [2019-11-20 07:41:42,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:41:42,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 07:41:42,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478136871] [2019-11-20 07:41:42,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 07:41:42,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:41:42,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 07:41:42,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:41:42,357 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-20 07:41:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:41:42,540 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-20 07:41:42,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:41:42,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 07:41:42,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:41:42,563 INFO L225 Difference]: With dead ends: 8929 [2019-11-20 07:41:42,564 INFO L226 Difference]: Without dead ends: 7471 [2019-11-20 07:41:42,564 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:41:42,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-20 07:41:42,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-20 07:41:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-20 07:41:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-20 07:41:43,059 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-20 07:41:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:41:43,060 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-20 07:41:43,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 07:41:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-20 07:41:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 07:41:43,077 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:41:43,077 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 07:41:43,077 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:41:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:41:43,078 INFO L82 PathProgramCache]: Analyzing trace with hash 132927655, now seen corresponding path program 1 times [2019-11-20 07:41:43,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:41:43,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388253200] [2019-11-20 07:41:43,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:41:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:41:43,277 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 07:41:43,277 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388253200] [2019-11-20 07:41:43,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:41:43,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 07:41:43,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558128865] [2019-11-20 07:41:43,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:41:43,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:41:43,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:41:43,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:41:43,279 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 7 states. [2019-11-20 07:41:43,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:41:43,526 INFO L93 Difference]: Finished difference Result 12412 states and 34929 transitions. [2019-11-20 07:41:43,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:41:43,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-20 07:41:43,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:41:43,549 INFO L225 Difference]: With dead ends: 12412 [2019-11-20 07:41:43,549 INFO L226 Difference]: Without dead ends: 7795 [2019-11-20 07:41:43,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 07:41:43,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7795 states. [2019-11-20 07:41:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7795 to 7228. [2019-11-20 07:41:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7228 states. [2019-11-20 07:41:43,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7228 states to 7228 states and 20322 transitions. [2019-11-20 07:41:43,759 INFO L78 Accepts]: Start accepts. Automaton has 7228 states and 20322 transitions. Word has length 34 [2019-11-20 07:41:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:41:43,760 INFO L462 AbstractCegarLoop]: Abstraction has 7228 states and 20322 transitions. [2019-11-20 07:41:43,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:41:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7228 states and 20322 transitions. [2019-11-20 07:41:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 07:41:43,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:41:43,771 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 07:41:43,771 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:41:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:41:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash -386815421, now seen corresponding path program 2 times [2019-11-20 07:41:43,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:41:43,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770375115] [2019-11-20 07:41:43,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:41:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:41:43,902 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 07:41:43,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770375115] [2019-11-20 07:41:43,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:41:43,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 07:41:43,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293420188] [2019-11-20 07:41:43,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:41:43,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:41:43,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:41:43,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:41:43,904 INFO L87 Difference]: Start difference. First operand 7228 states and 20322 transitions. Second operand 7 states. [2019-11-20 07:41:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:41:44,146 INFO L93 Difference]: Finished difference Result 11845 states and 33282 transitions. [2019-11-20 07:41:44,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:41:44,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-20 07:41:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:41:44,165 INFO L225 Difference]: With dead ends: 11845 [2019-11-20 07:41:44,166 INFO L226 Difference]: Without dead ends: 6247 [2019-11-20 07:41:44,166 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 07:41:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2019-11-20 07:41:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6247. [2019-11-20 07:41:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6247 states. [2019-11-20 07:41:44,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6247 states to 6247 states and 17586 transitions. [2019-11-20 07:41:44,326 INFO L78 Accepts]: Start accepts. Automaton has 6247 states and 17586 transitions. Word has length 34 [2019-11-20 07:41:44,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:41:44,326 INFO L462 AbstractCegarLoop]: Abstraction has 6247 states and 17586 transitions. [2019-11-20 07:41:44,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:41:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand 6247 states and 17586 transitions. [2019-11-20 07:41:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 07:41:44,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:41:44,335 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 07:41:44,335 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:41:44,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:41:44,336 INFO L82 PathProgramCache]: Analyzing trace with hash -229627641, now seen corresponding path program 3 times [2019-11-20 07:41:44,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:41:44,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986554074] [2019-11-20 07:41:44,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:41:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:41:44,494 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 07:41:44,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986554074] [2019-11-20 07:41:44,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:41:44,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 07:41:44,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047186064] [2019-11-20 07:41:44,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 07:41:44,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:41:44,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:41:44,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:41:44,496 INFO L87 Difference]: Start difference. First operand 6247 states and 17586 transitions. Second operand 8 states. [2019-11-20 07:41:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:41:44,620 INFO L93 Difference]: Finished difference Result 4789 states and 13212 transitions. [2019-11-20 07:41:44,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:41:44,621 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 07:41:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:41:44,621 INFO L225 Difference]: With dead ends: 4789 [2019-11-20 07:41:44,621 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:41:44,621 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 07:41:44,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:41:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:41:44,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:41:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:41:44,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-20 07:41:44,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:41:44,622 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:41:44,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 07:41:44,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:41:44,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:41:44,625 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 07:41:44,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:41:44 BasicIcfg [2019-11-20 07:41:44,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:41:44,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:41:44,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:41:44,629 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:41:44,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:35" (3/4) ... [2019-11-20 07:41:44,633 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:41:44,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 07:41:44,660 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 07:41:44,661 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 07:41:44,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 07:41:44,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 07:41:44,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 07:41:44,716 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0f541778-8012-4684-90b2-fb1169c133d8/bin/uautomizer/witness.graphml [2019-11-20 07:41:44,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:41:44,718 INFO L168 Benchmark]: Toolchain (without parser) took 10658.39 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 617.1 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -74.9 MB). Peak memory consumption was 542.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:41:44,721 INFO L168 Benchmark]: CDTParser took 0.55 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 07:41:44,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:41:44,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:41:44,723 INFO L168 Benchmark]: Boogie Preprocessor took 25.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:41:44,727 INFO L168 Benchmark]: RCFGBuilder took 430.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:41:44,728 INFO L168 Benchmark]: TraceAbstraction took 9446.66 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 508.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.4 MB). Peak memory consumption was 522.9 MB. Max. memory is 11.5 GB. [2019-11-20 07:41:44,728 INFO L168 Benchmark]: Witness Printer took 87.69 ms. Allocated memory is still 1.6 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2019-11-20 07:41:44,730 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 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 620.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 430.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9446.66 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 508.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.4 MB). Peak memory consumption was 522.9 MB. Max. memory is 11.5 GB. * Witness Printer took 87.69 ms. Allocated memory is still 1.6 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 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: 9.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 597 SDtfs, 898 SDslu, 1579 SDs, 0 SdLazy, 246 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s 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: 2.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 567 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18636 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...